Forced Convection with Solid State Piezoelectric Fan

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This video was uploaded to showcase PiezoFlo technology as a highly reliable solid state forced convection solution. It excels in actively cooling applications where:
1. Reliability is critically important
2. Electromagnetic interference or EMI is not permitted
3. A thin form factor is required
4. A dusty, corrosive, or extreme temperature environment is expected
5. where audible noise needs to be kept to a minimum.
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Please Note: We've released a video that answers many of our commentors' questions - and provides a deeper dive. Available here: • Piezoelectric Fan Adva... .
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Related Piezo Fan Blog Posts:
Advantages of Packaged Piezoelectric Fans: bit.ly/39Qu4eX
Best Applications for Piezoelectric Fans: bit.ly/3yV2szS
Case Study: Piezo Fans Trump Traditional Fan Challenges in the Oil and Gas Industry: bit.ly/3NrXrTs
Background:
During the development of the piezoelectric fan our customer required us to run some highly accelerated life testing (HALT) on a statistically significant number of samples. The test included thermally cycling the fans 1000 times from -40 to 125C while they were operating. The test took about 5 weeks to complete. There were no failures.
We also ran the fans through high temperature operating life at 180C (HTOL), low temperature operating life at -70C (LTOL), Over voltage test at 100% over the normal operating voltage, Humidity HALT testing, Cold start testing which included a hard start up after the fans soaked at -40C for 14 hours, high temperature storage tests where the fans were soaked at 140C for 1000 hours prior to successful operation, dust ingress testing, salt spray and fog testing and IP68 testing where we submerged the fans for 72 hours at the equivalent of 3 meter depth pressure and then operated them after they were removed and dried off. There were never any failures during any of these tests.
Lastly, I sit about 6 feet from a fan we have been running since June of 2016, If I really try to listen hard I can hear it running, but otherwise I don't notice it. Running at 60 Hz we have put just over 11 billion cycles on the fan without failure or change in performance.
To find out more please visit our product overview page at: goo.gl/plglMp
www.piezo.com: bit.ly/3yVNTMK

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21 янв 2016

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Комментарии : 784

@MideTech 2 года назад

Our response video is ready - please check out Rob's responses to your most common questions - ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-kFZnbc6hd8I.html. Thank you again for your interest, questions, and comments regarding this piezoelectric fan. Quick note: Since this video was produced (over 6 years ago) Mide has spun off its piezo product line to its own individual site: piezo.com

@YasinSil 2 года назад

I look forward to seeing more application areas. I want to see this used in processors

@srenkoch6127 2 года назад

One small note though. You claim no electromagnetic noise from the device, which is not strictly true. yes the electromagnetic noise will be significantly less than any normal electrical motor, but however not absolutely zero, as the alternating electrical field applied to the 2 sides of the fan (which is driving the piexo-electrical deformation) will radiate RF noise (as any alternating electrical field will).

@mirroredvoid8394 2 года назад

Will piezoelectric fans be used as an miniaturized active cooling solution for NVMe SSDs in the future? PCIE 5.0 is going to turn consumer m.2 SSDs into mini furnaces operating at a 140C maximum temperature limit and this technology seems suited for it.

@theman3282 2 года назад

@@srenkoch6127 can the packaging can diminish that RF to not leak to outside so much?

@Voyajer. 2 года назад

@@theman3282 Yes if it is made to do so

@Justin_80 3 года назад

If it was "low noise", why no audio of it?

@FreddieTheRobot 3 года назад

I use piezo fans just like these in some aerospace assemblies my company designs, and I can vouch for how quiet it is. Their noise is so negligible that in our acoustic testing procedures we don't even consider testing the noise output differential between when we have multiple piezo fans on or off. The only thing I don't like about them is that you have to supply 60Hz ~120V power to them, so integrating them into a low power electronics system that isn't powered straight from the wall can be difficult.

@mangakker 2 года назад

Because it is too loud

@HappySlappyFace 2 года назад

@@mangakker the comment above you states that their volume is negligible from experience and you, a random person that never seen the device says it's loud? Can you stop with the unnecessary comments?

@yanamorim5747 2 года назад

it makes sound in the ultrasound spectrum, everything that moves makes sound.

@tareksma1 2 года назад

@@FreddieTheRobot but it has moving parts. The oscillating fence that make air circulate is suffering from metal fatigue, or plastic fatigue, it would brake soon. I think. But i maybe wrong. Has it been tested in long time working??I would like that. I love innovation and technology

@TheNebojsa47 2 года назад

why did this popped up 6 years later to me, this idea is fascinating...imagine pc tower or server rack full of oscilating thingies inside it

@Stinktierchen 2 года назад

Yeah just appeared for me too... weird. I guess a fan is a lot cheaper and probably a lot more efficient than this construction... so makes no sense to use it there at all in a pc tower or server rack, even if you could.

@Ezio-Auditore94 2 года назад

@@Stinktierchen Common fans are less efficient because they produce a lot of EM fields as a waste product. For the current price, fans are a lot cheaper and makes no sense to spend so much in this regard unless required by a specific application

@warrensteel9954 2 года назад

Must have been too expensive to market to consumers 😢

@TheNebojsa47 2 года назад

@@warrensteel9954 i saw one guy making piezoelectric LED sign for less than $2...couldn't be more expensive than this fan i suppose

@laurenpinschannels 2 года назад

because some of us goofballs who seek out these weird videos have been incrementally training the youtube recommender that we like this stuff. that goes for all of us, who knows who saw it first, but then the fact that that first person watched it indicated to the recommender "wait, wtf? y'all like this shit now? uh, okay" and it tried another person, who also watched it. and after a few of those it was like "yeah alright guess this one is worth trying" and it took off. if you want to cause this to happen, its worth searching for random probably-unpopular shit. you'd be surprised how often something you found in a weird search ends up getting super popular because the recommender just hadn't bothered to show it to anyone until it got its first view in ten years

@MrMotus-lb4gh 2 года назад

Interesting idea but isn't there after some time material fatigue from all that oscillation or small amount of dust build up that make it unbalanced to point of destroying itself?

@vaj1414 2 года назад

there are materials - like steel - that can withstand an infinite number of oscillations if the stress is low enough

@lunotarr 2 года назад

@@vaj1414 As I understood, the question was exactly about that - is that stress low enough to let device live as long as fan at least?)

@Zodliness 2 года назад

I attached the piezoelectric plates to 1mm thick mica sheets, two on the same side acting to increase the overall airflow, the only downside observed was a slowing of the 50hz mains oscillation, because of the increase in air resistance on the mica sheet, however when all is said and done the fan measured six times the surface area of one oscillator assembly. Hope this spurs on some further tinkering! 😉

@johnlockesghost5592 2 года назад

@@Zodliness therapist.....the-rapist.

@Zodliness 2 года назад

@@johnlockesghost5592 That just earned yourself a REPORT directly to 'abuse' you're an obnoxious basement dwelling reject, with nothing better to do than lose at kids games and troll RU-vid for ego boosts, simply because with a pecker like yours, you can't get laid. Go find someone that gives a toss about your bucket mouthed trolling comments. I've got three kids more mature than you and they're still in pre-school. GROW UP!

@AdamWilberLikesBeer 2 года назад

Announcer: "no moving parts" Device: "commence the jigglin!"

@mfbfreak 4 года назад

Cool! Piezo devices are so interesting. The force a simple piezo transducer disk can produce surprised me when doing some experiments with it.

@Reth_Hard 2 года назад

So my aunt was right, crystals are truly magical!!

@cageybee7221 2 года назад

@@Reth_Hard they say that sufficiently advanced technology is indistinguishable from magic, afterall...

@felenov 2 года назад

This has some niche applications, and opens the door to very small systems such as self contained aspirating smoke detectors.

@alphastratus6623 2 года назад

Or maybe big server farms where reliability is the main goal and that cost billions of dollars to keep them running?

@ParadigmUnkn0wn 2 года назад

@@alphastratus6623 Can't come close to providing the volume servers need. The reliability of fans in servers isn't an issue. They have enough overhead that losing a single fan isn't catastrophic. Their BMC system generates an alert, a tech goes out and hotswaps a new fan module in, and at no point does anything go offline or stop working. This is for applications like comparatively low-power embedded devices controlling/monitoring industrial equipment in dirty/dusty areas, explosive environments, etc. Basically industrial applications. It may be a "niche" market, but it's a pretty large niche, just not one that most people are familiar with.

@alphastratus6623 2 года назад

@@ParadigmUnkn0wn Yea, they found a process that solves the problem and that cost money. Do you really think they would keep this system if something less expensive arrive?

@ParadigmUnkn0wn 2 года назад

@@alphastratus6623 I'm not sure what point you're trying to make here. These piezo "fans" don't move nearly enough air and aren't nearly as efficient as DC brushless motor fans which are currently used in servers. Servers already use ball-bearing fans, not the cheaper sleeve bearing fans that are common in consumer PCs. It's not all about cost for them. When you're selling a $20,000+ server you've got some leeway in your bill of materials to go for quality over minimal cost. The enterprise/commercial equipment sector isn't all about cost cutting, reliability is huge to them.

@remydaitch9815 2 года назад

PC and media room applications, if it works.

@alexanderthef8 2 года назад

Looks like some good cleansing incense around the heat sink. Computers need good vibes too 😎

@samuels1123 2 года назад

I feel that this also presents a more reliable way of sterile mixing in small scale if design modified a little, as it does not need a break or gasket to spin it can just be coated in sterile flexible material and be mounted to the mixing device

@phils4634 2 года назад

For liquids or suspensions, the many orders of magnitude greater viscosity will be a severe damping problem. For smaller volumes externally coupled magnetic stirring systems are far more reliable and far more energy efficient.

@user-qu2oz2ut2h 2 года назад

...there are no rotating or moving parts... and literally 3 seconds later it goes bzzzzzz and starts to shake violently

@attitudeadjuster793 2 года назад

They probably mean there are no bearings that can wear out, which happens often with normal fans.

@indian.techsupport 2 года назад

Bending is not really moving from an engineering standpoint

@tazanteflight8670 2 года назад

@@indian.techsupport Motion is motion. I see motion. I see something that will break, from its motion. So from an engineering standpoint, its important.

@VictorLarsen-fy9ls 2 года назад

@@attitudeadjuster793 normal fans fail if they get clogged with dust or are operated for a long time at the wrong angle and at maximum speed.

@faithnfire4769 2 года назад

@@tazanteflight8670 The significance is that in some scenarios lifetime until fatigue-failure can be infinite. The resulting real lifetime may be longer in some situations than failure from a wearing bearing or more likely a seized joint from dust or the like (think normal fans). Solid state electronics are themselves very constant in failure rate. Might be an interesting read for the specs comparatively.

@michaellavery4899 2 года назад

Great! Just what I have been thinking about.

@OutyMan 2 года назад

Fascinating fan. I might want to play with one of these sometime soon.

@saurabhjambotkar3337 2 года назад

Interesting! Would love to know efficiency comparison with conventional fans and cost points.

@remydaitch9815 2 года назад

Here here!!

@tygonmaster 2 года назад

No rotating or moving parts? The rapidly moving central "blade": Anyway, I started blasting....

@wfpnknw32 4 года назад

No moving parts?? What's that yellow thing..

@MideTech 4 года назад

Apologies for the late reply. You've made a good point - and a correct one. We should have said, "no wearing parts." The yellow material is actually a glass fiber epoxy composite (FR4) - commonly used for printed circuit boards. In this case, it encloses the piezo ceramic that actuates the FR4 to act as a flapping fan. Thank you.

@oberguga 3 года назад

@@MideTech and what about material fatigue? You can bend rapidly a metal strip and eventually it breaks. I don't think that glass fibers in epoxy can not wear and tear on material level.

@MideTech 3 года назад

@@oberguga Good question! The life span is essentially infinite as long as it is run within its parameters. This is flexing, not wearing. It does move, as it vibrates in flexture :)

@Ayce47 2 года назад

@@MideTech So no micro fractures?

@OmeedNOuhadi 2 года назад

Wow, that was really cool! 👍

@eviethekiwi7178 2 года назад

all you PC gamer wise guys need to realise that there’s other applications for cooling than your gaming rig. factories have to run hundreds of computer systems to control production and many of them are in excessively dusty or damp environments. i can tell you from firsthand experience that a conventional fan won’t last more than a year in such conditions. source: i’m a maintenance engineer in a wool factory.

@dontnubblemebro 2 года назад

Ooh, I used to buy for a processor in Australia, nice to see another one!

@Diviance 2 года назад

If it can't cool a gaming PC with a gigantic overclock, there is no reason for it to exist.

@MideTech 2 года назад

Thanks Evie, you are correct that the target application for the piezo fan is not PC's but industrial applications where traditional fan technology is challenged. Our fan can operate reliably in temperatures ranging from -40 to 125C and in dusty, humid and corrosive environments. We are not saying it is the BEST performing fan for airflow, noise etc. But it allows for some forced convection in environments where other fans would quickly fail.

@TempoDrift1480 2 года назад

They wouldn't understand that. They live in a fantasy world.

@startedtech 2 года назад

I'm sure Linus Tech Tips will try cooling a PC with 100 of these and a giant radiator.

@tslim250 2 года назад

These are absolutely interesting as all hell, I work in a laser shop thats full of all kinds of nasty stuff that destroys anything that has to do with airflow! I'd love to toss these into that environment and see how they handle...

@92kosta 2 года назад

You mean like CO2 and Fiber Laser cutting machines? If so, I also work on a Fiber Laser and the amount of fine dust particles it produces is unbelievable. Even though the machine has a filter unit it still manages to cover everywhere with that dust over a long period of time.

@tslim250 2 года назад

@@92kosta yep, no matter what it still finds its way out of containment.

@James_Haskin 2 года назад

If either of you get ahold of one of these pls update us with some test data 🙏

@Gunbudder 2 года назад

damn dude, i would have made my lab buy this years ago but i don't work there anymore lol. definitely keeping this gem in my mental back pocket the next time i need a high reliability fan in this range

@luiscarlosmarques3946 2 года назад

Great idea ! :)

@gavincurtis 2 года назад

They used to make wall outlet plug in air freshener with these piezo fans.

@gavincurtis 2 года назад

I don’t recall them moving near that much air being smaller.

@njnear 2 года назад

That’s neat and all, but that is most definitely a moving part.

@Jesse-qy6ur 2 года назад

That's not typically what's considered a moving part, though. Yes, it's in contact with the working fluid but so is a pipe, but we don't consider the plumbing of a house to be a moving part. Nor do we consider a heat sink to be a moving part. The blades of a fan are not a moving part, while the gearbox and brushes are, the bearings are, but the rotor itself is not. So long as the strain induced on the flappy part only results in elastic deformation the part will last effectively forever. There's nothing for it to wear against.

@RobertWilkinsonJKekMaloy 2 года назад

@@Jesse-qy6ur the pipe is not moving, the water is. The yellow tab is moving, the electrical box is not.

@0MVR_0 2 года назад

@@RobertWilkinsonJKekMaloy The yellow tab is actually rapidly shrinking and expanding. This is different to motion in the sense of motive partitions that kinetically actuate.

@RobertWilkinsonJKekMaloy 2 года назад

@@0MVR_0 ahhh. And here i thought it was magnetic field oriented

@0MVR_0 2 года назад

@@RobertWilkinsonJKekMaloy Your thinking is correct yet omits the method of induction. All electrodynamic and magnetic convection is a realignment of internal orientation. In this case, the yellow tab is its own molecular magnet, having predictable articulation when under stimulus.

@alouisschafer7212 2 года назад

I don't see why this would be better than a high quality computer fan like the industrial series from Noctua.

@tbnamj 2 года назад

Saludos desde la República Dominicana excelente vídeo

@tiefensucht 2 года назад

Interesting idea. Is there any real life demo or comparison to an traditional fan we can watch?

@d3ofol 2 года назад

"No rotating or moving parts to fail or wear out" immediately followed by demonstrating the one moving part that will be the point of failure on the device. That is peak comedy.

@RobertWilkinsonJKekMaloy 2 года назад

Exactly. Glad I wasn’t the only one seeing that

@Aaron-ru6ld 2 года назад

Given that there isn't any movement across two pieces, its bound to be a lot more reliable. The people said they've done 11 billion cycles without failure.

@RobertWilkinsonJKekMaloy 2 года назад

@@Aaron-ru6ld and how long do those eleven billion cycles last?

@Bobo-ox7fj 2 года назад

"No rotating or moving parts" followed immediately by a demonstration of the moving parts

@TheNiteinjail 2 года назад

Flexing isn't technically moving... but I get you

@bubaks2 2 года назад

That part u see moving will never wear or fail.

@Alex-lc1bv 2 года назад

@@TheNiteinjail It was moving back and forth.

@alphastratus6623 2 года назад

No relative movement in a contact area. That's where the wear happen for most technical applications.

@midgetman4206 2 года назад

I guess the only one that could maybe do that would be ion flow. Probably less efficient and effective than even this.

@bruno_ricci 6 лет назад

It would be great if this principle could be efficient enough to implement with liquid fluids; for example in low power water pumps it wouldn't be necessary to seal the motor shaft and bushing.

@lordsqueak 2 года назад

Doing it with air seems,, less practical than anything we already got. But doing it with liquids, now we're talking. Question is, can it move water? or more viscous liquids? It might not be suitable for propulsion, but might find uses for mixing and moving liquids.

@lordsqueak 2 года назад

@@LegendLength I could see it being used for something ultra light, but it would need to vibrate in 2 dimensions to mimic a wing.

@mfree80286 2 года назад

@@lordsqueak Not a terribly complex deal, just couple two units together and offset the input frequency on one.

@lasskinn474 2 года назад

it's already not necessary to seal the motor shaft. take apart an aquarium pump and take a look. the impeller has a magnet inside and is the shaft, sealed away from the inductors spinning it.

@heyhoe168 2 года назад

@@lordsqueak If my guess on principles are right, it is nearly impossible and impractical for liquids.

@Duncan_1971 2 года назад

Nice demo. Suggestion for you. Could you increase airflow by adding some 'wings' at 90 degrees to the surface of the piezo strip?

@the_retag 2 года назад

yeah, i also thought the fins were not optimal

@MideTech 2 года назад

Hi Duncan! We have tried that and it does not enhance air flow, however, adding external ducting can increase air flow.

@Rotated 2 года назад

So cool that you tried that :)

@tapist3482 2 года назад

@@MideTech I feel like this tech can be modified to imitate the movement of butterfly wings, which is more efficient than simple flaps.

@damonedwards1544 2 года назад

@@tapist3482 It could be more efficient, but probably not as durable.

@davomontgomeryda3rd 2 года назад

cool concept! only thing about the high dust environment, would be having to clean the dust off all those air directional dominos.

@sinnison23 2 года назад

Those are heat sinks.

@Retrolian1000 2 года назад

@@sinnison23 air directional dominos sounds cooler

@sebastiansebita5786 2 года назад

Impresionante!

@kevinerickson2595 2 года назад

👏👏👏👏👏👏beautiful!

@silnyye4403 2 года назад

i just saw a modern application of this technology, it is still in testing phase but it was used as an insect drone wings.

@badsamaritan8223 2 года назад

Gonna win the Fan Showdown with this

@arivnidunami3047 2 года назад

Very cool.

@guypersson 2 года назад

"no moving parts" -- proceeds to vibrate.

@dedr4m 2 года назад

Can these be made in such a way so that it can be the main part of a diaphragm in an ultra thin speaker to allow better throw than fixed magnet speakers where a magnet blocked the full swing potential?

@davidanderson6222 2 года назад

Pretty cool!

@HelloKittyFanMan. 2 года назад

"No moving parts"? Uh... actually, ya got one right there, bud.

@lucianolandi7307 2 года назад

This thing exists since the ‘70s and it was sold by Edmund Scientific as a non rotating cooling fan.

@ShopperPlug Год назад

Wow, this is cool. I wonder if you can make a water pump with this or a laser precision scanner to replace galvo scanners. For curiosity, what is the lifespan of this Piezoelectric Fan? How long can this be run for before being malfunctioned?

@randomkitty2555 2 года назад

It'd be interesting to hear it up close. I'd imagine a low humming noise.

@milkdrinker7 2 года назад

Idk why the algorithm sent us here, but this is neat!

@crackedemerald4930 2 года назад

Finally, known by friends as The Flapping Fan, known by enemies as the Fran

@profdc9501 2 года назад

What is the fatigue lifetime on the flapping element and the piezoelectric element itself? Does it require high voltage to drive the piezo element, and if so, is the driver circuitry contained within the element? How would this compare to a voice coil actuator driving a flapping element?

@FreddieTheRobot 2 года назад

Driver circuitry cannot be placed in the element. The fan needs a 60Hz 115VAC line to operate. But, since the power consumption of these things are typically very low (roughly 30mW) you can backfeed a generated sine wave through a transformer to achieve this on a DC supply.

@MideTech 2 года назад

This particular fan is driven off line voltage in the US. There is some small current limiting circuitry. Here is some info we provided to another comment on the fatigue question: During the development of the piezoelectric fan our customer required us to run some highly accelerated life testing (HALT) on a statistically significant number of samples. The test included thermally cycling the fans 1000 times from -40 to 125C while they were operating. The test took about 5 weeks to complete. There were no failures. We also ran the fans through high temperature operating life at 180C (HTOL), low temperature operating life at -70C (LTOL), Over voltage test at 100% over the normal operating voltage, Humidity HALT testing, Cold start testing which included a hard start up after the fans soaked at -40C for 14 hours, high temperature storage tests where the fans were soaked at 140C for 1000 hours prior to successful operation, dust ingress testing, salt spray and fog testing and IP68 testing where we submerged the fans for 72 hours at the equivalent of 3 meter depth pressure and then operated them after they were removed and dried off. There were never any failures during any of these tests. Lastly, we have been running a non accelerated life test on a single unit (in my office) since June 15th, 2016. It has only been unplugged one time when we moved to a new building. It is still running as of this morning with no noticeable change in performance. I sit about 6 feet from it, If I really try to listen hard I can hear it running. Running at 60 Hz we have put just over 11 billion cycles on the fan without failure or change in performance.

@MonsterPumpkin 2 года назад

@@MideTech Holy shit that is an amazing answer, I appreciate that

@jrshaul 2 года назад

@@MideTech That is robust. Can they be operated on variable speed drive?

@MaZe741 2 года назад

"no moving parts" moving part: moves

@prathamkalgutkar7538 2 года назад

Well it's not Moving from an Engineering Perspective but I get you

@RFC-3514 2 года назад

@@prathamkalgutkar7538 - Bending is still motion (and a very important part of structural engineering).

@Revoku 2 года назад

"no moving parts" immediately moves. just because its not going in a circle, doesn't mean it isn't moving.

@joshy0369 2 года назад

Pretty cool 😎

@manjunathar9037 2 года назад

Add 3 flappers with 120 degree phase , so it can mimic bird flapping and smooth air flow

@harrypoon2438 2 года назад

“No moving parts” Proceeds to start to vibrate significantly

@0MVR_0 2 года назад

Moving parts refers internal kinetics. One would fail to say that an arrow in motion has moving parts.

@RFC-3514 2 года назад

@@0MVR_0 - Bad analogy. A better equivalence would be with a living (flexible) hinge. You might describe it as being all "one part", but when it bends it's still moving, and is therefore subject to wear. As is the arrow, by the way (just of a different type).

@0MVR_0 2 года назад

@@RFC-3514 The analogy is apt. Imagine an arrow that flies through the air around the globe in perpetuity. The bending is actually different to motion, so long as there is insignificant wind

@RFC-3514 2 года назад

@@0MVR_0 - "an arrow that flies through the air around the globe in perpetuity" - The stranger the thing you need to imagine, the clearer it should be how bad the analogy was.

@0MVR_0 2 года назад

@@RFC-3514 The connecting idea is a solid body immersed in a fluid.

@SebRoseWolf 2 года назад

"no moving parts" *The thing begins to vibrate rapidly*

@CharlesVanNoland 2 года назад

Does the material used for the blade experience any degradation over time? Is it resilient enough to last for millions or billions of cycles?

@kimchristensen2175 2 года назад

"there are no moving parts..." and then the video proceeds to show us a moving part... LOL!

@STRATOS13PAO 4 года назад

what about the vibrations caused? what are some applications that wont be affected by them?

@cludlow64 4 года назад

Stratos, there are some small mechanical vibrations for sure. I don't have a measurement of them but the next time I'm in our office I'll put one of our enDAQ sensors (www.endaq.com) on there to get you some data. We have found that for most applications the small vibrations are allowable (telecommunications, oil and gas, etc) but there are deifinitely some where the vibrations would not be allowed. Thanks for checking the video out.

@STRATOS13PAO 4 года назад

@@cludlow64 Thanks for the reply.

@smopuim 2 года назад

@@STRATOS13PAO Thanks for thanking the reply.

@VictorLarsen-fy9ls 2 года назад

What a vibration, look at this cosmic price, you won't need it

@randomconstructions4513 2 года назад

and all you have to accept is a new significant source of vibrations

@yummyyum4626 2 года назад

Just to say, I'm a big fan.

@frogandspanner 2 года назад

0:11 "No ... moving parts that can wear or fail" . 0:15 A moving part.

@MeriaDuck 2 года назад

I'd hazard a guess that EEVBlog would say "look at that piezo element flapping in the breeze" for sure :-)

@ntal5859 2 года назад

As electronic engineer myself that EEVBlog is one of the worst people in the industry, I once seen one of his video where he is pushing his cheap Chinese multimeter and does the most ridiculous test on it to kill the competition meter, never in 35yrs have I done anything like he did in that test to any meter.. then he goes out his way to be over the top of topics he has no clue on, he is a bad engineer but manage to capture people following him on youtube by acting that way.

@ShopperPlug Год назад

LMFAO I would like to see how Dave enthusiastically describes this piezo fan.

@kilianconn5091 2 года назад

"no moving parts" *donger starts flapping*

@CallMeSmiel 2 года назад

This seems like perfect for server applications or even consumer consoles where an elongated form factor could benefit from this. How does static pressure look out of these?

@rkan2 2 года назад

Too expensive for most computer use where product lifetimes are 3-5x less than this thing's MTBF.

@ABaumstumpf 2 года назад

Expensive, no more reliable, shorter lifespan, more noise.... want more? They are a useful for a specific niche market, but that market is not moving a lot of air efficiently.

@Retrolian1000 2 года назад

@@ABaumstumpf They aren't noisier than a normal fan (you can barely hear them if you focus on it) and can last pretty damn long without any kind of maintenance. If you look up in the comment chain above (profdc9's comment), they actually comment on the type of testing (very rigorous) they did and have had one of these running since 2016 with no difference in performance. The only downsides are they don't move as much air as a regular fan does and they require a direct line connection, so it's difficult to implement in low-power settings. These would be very useful in industrial applications where the environment is very dirty and also involve flammable/explosive gases. These won't replace desktop fans.

@aceman67 2 года назад

And what material are you going to use to prevent material fatigue? Unobtainium?

@soscilogical1904 Год назад

cool zoom stick thingy, I can't believe they've made arrays of them on a microchip that send air at 120mph, that's only mk1 of the product, and it's on demo at CES. I wonder about the durability in years? I can see there being a good market for these, it could take some active reach out to potential customers. How is the company growing?

@shupesmerga4694 Год назад

where does the buzzing noise come from? Is it coming from the flapping of the blade back and forth making the swoosh sound? or is it of electrical nature?

@ddavid2 2 года назад

@Mide Technology the technology is inspiring, thanks for the video. But the demo is not complete till you demo all what you assert in the video. Thus, same you showed the air flow with smoke, you should add a sound meter and mute your voice for a while in order to hear the fan's sound, and to see the dB while both when you talk, and when you're muted.

@hapskie 2 года назад

I agree. I think it might be that it actually creates a very annoying constant 50 or 60hz hum.

@Retrolian1000 2 года назад

@@hapskie It's not any louder than a normal fan and in some cases even quieter. However, these are only being marketed for industrial settings where normal fans would fail quickly (very dirty/dusty environments) or environments where there is a lot of flammable/explosive gas. The ambient noise would drown out any kind of "humming" these fans might produce. It's not really necessary to test for or worry about.

@luckyrabbit4355 2 года назад

Wish this took off more

@Doom2pro 2 года назад

Is the bending of the material elastic or plastic deformation?

@Graham_Langley 2 года назад

Not new. A company here in the UK - I have a memory of it being Plessey or Pye - had a version of this in the early 80s or possibly earlier.

@agvulpine 2 года назад

I would have to see some static pressure and airflow tests. Waiving your hand over a heat sink may be all fine and good on the test bench, but put it inside of a low profile computer case or rack mount and show me how this draws cool air in and expels hot air out of the containment. All modern computers and servers use ducting so that each and every fan channels air in/out of the case. Old 486 and Pentium computers used to wiggle air around inside the case, like this does.

@Retrolian1000 2 года назад

These aren't being marketed for consumer use, only for industrial applications where efficiency isn't really a necessity but safety is (like flammable/explosive gas environments). I will tell you that normal fans are way more efficient if you want desktop cooling.

@agvulpine 2 года назад

@@Retrolian1000 The Industrial World requires lowest of low profile rack mount cases. Space is money. We still need static pressure tests to show that air moves in and air moves out when it's told to move.

@Retrolian1000 2 года назад

@@agvulpine Depends on the industry but I see your point. Not sure they are going to freely provide that information though. They did make this for a customer to their specs so I don't think these are a "sham" or anything otherwise they would have gone out of business years ago. There's obviously a market for them. You should watch their newest video where they address some of the questions and criticisms. It literally came out yesterday.

@intraterrestrial69 2 года назад

Why is the mica sheet not considered to be a moving part with its oscillating action?

@RonLaws 2 года назад

No moving parts - Element go flapflapflap

@MemeScreen 2 года назад

Let’s get these in a gaming PC. I’m sure LinusTechTips would be interested in looking at this tech.

@mjetektman9313 2 года назад

Not sure why this video got recommended to me, but I am curious on one thing: Is it possible to power the piezo fan with an inverter power supply setup, for example, if a business needs it for a DC powered low voltage application, and have no means to supply direct AC from the wall, but can convert 12 VDC to 120 VAC 60 Hz, would it be possible?

@klamup 2 года назад

Recommended gold.

@ultrahevybeat 2 года назад

i love the peso electric fan

@Zodliness 2 года назад

If one attaches more than one piezoelectric oscillator to a single mica card, they will oscillate synchronously vastly increasing the fan's surface area and airflow. Sandwiching mica card oscillators between peltier plates, produces an effective high efficiency low consumption cooling and heating assembly.

@Monstacheeks 2 года назад

There’s quite a bit of Bending and movement of the flap. Seems like it will break after long periods of use.

@techstuf4637 2 года назад

Interestingly, studying the piezoelectric effect is what led two researchers, Kowsky and Frost, to discover "antigravity" in 1919. See - "Flying triangles and the black holes on my fridge" on the net Good Journeys All

@oraz. 2 года назад

I wonder if the fins can be thought of as an acoustic lens?

@3949zxcvbnm 2 года назад

What if there was a isolated spinning fan blade in the center of that... would it automatically spool u p and amplify the air flow?

@berkahpowerindo8815 2 года назад

The fly just got better..

@Dia1Up 2 года назад

Pretty fascinatingly simple. Running off of 60hz power to oscillate. How does power draw compare to a traditional fan? (Something like the Noctua 40x20 (12v) drawing 0.05amps/0.6 watts)

@MysticalDork 2 года назад

According to the specs on the website, the higher power variant uses slightly more power (1 watt vs 0.6), but achieves higher air flow (10 CFM vs 5.5). The low power variant claims to achieve 2 CFM from just 30 milliwatts (0.03 watts).

@nickryan3417 2 года назад

And how efficient is this fan compared to alternatives?

@msamour 2 года назад

I guess I could see some applications for this.

@henmich 2 года назад

I used to work on computers and I have seen so so so many fans that look like they got a gerbil caught in them, but still work well enough to keep the pc alive. I wonder how these would hold up once covered in dusty fur...

@nutzeeer 2 года назад

Could this be used to silently increase the efficiency of home radiators? Or split ac systems?

@NavinF 2 года назад

If you’re talking about oil radiators for heating, they’re already 100% efficient; Adding a fan only reduces surface temperature and makes it safer. Split AC systems already have fans

@ntal5859 2 года назад

Remember the noise of a ruler flicking on the end of the table, not so silent was it !!!

@Retrolian1000 2 года назад

@@ntal5859 Rulers aren't the same thing as this. Different material, design, oscillating frequency, and size. I will say that dedicated piezoelectric fans like this are no more louder than a normal desktop fan and sometimes even quieter. Though, these are not meant to replace desktop fans (which are way more efficient). They are designed for industrial applications where normal fans might otherwise fail rapidly or be dangerous.

@BVLVI 2 года назад

Amazing ZERO material fatigue! Please do publish your findings and collect your nobel prize. Oh wait this video is about a large piezo with a flap.

@frogz 2 года назад

why has this video suddenly been recomended to so many people? who knows but this is cool, i want to know about material fatigue like the rest of the comments, how long can this last?

@MideTech 2 года назад

Thanks Frogz. Here is some comments we provided on material fatigue: During the development of the piezoelectric fan our customer required us to run some highly accelerated life testing (HALT) on a statistically significant number of samples. The test included thermally cycling the fans 1000 times from -40 to 125C while they were operating. The test took about 5 weeks to complete. There were no failures. We also ran the fans through high temperature operating life at 180C (HTOL), low temperature operating life at -70C (LTOL), Over voltage test at 100% over the normal operating voltage, Humidity HALT testing, Cold start testing which included a hard start up after the fans soaked at -40C for 14 hours, high temperature storage tests where the fans were soaked at 140C for 1000 hours prior to successful operation, dust ingress testing, salt spray and fog testing and IP68 testing where we submerged the fans for 72 hours at the equivalent of 3 meter depth pressure and then operated them after they were removed and dried off. There were never any failures during any of these tests. Lastly, we have been running a non accelerated life test on a single unit (in my office) since June 15th, 2016. It has only been unplugged one time when we moved to a new building. It is still running as of this morning with no noticeable change in performance. I sit about 6 feet from it, If I really try to listen hard I can hear it running. Running at 60 Hz we have put just over 11 billion cycles on the fan without failure or change in performance.

@frogz 2 года назад

@@MideTech awesome, i wonder what unexplored applications this would be useful in, micro-fluidics, on chip active cooling, who knows the far reaches of a vibrating reed! edit: what denotes the natural resonance? is it more a function of mass or of current/voltage?