How Do Hall Effect Sensors Work? - The Learning Circuit 

Then you would have no trouble answering the questions in my comment. Of course not. After all it is fantastic explanation.

That it is, any explanation sometimes literally has to be drawn out and walked through as simply as possible is not some guy explaining something that he already understands that is only visualized in his own mind

She sounds drunk.

@@jerril42 omg that's hilarious. I've never watched a YT video at half speed before.

I don't think so. You think it so wonderfully clear? Then you can answer the questions in my comment.

@@alchemy1 Was that a retorical reply? For someone who I think wants an answer, you sure do expect people to do a lot of work for you. Your "comment" is buried somewhere and I'm not looking for it. But if you pose it below, I'll have a crack at answering it in a pleasant and chunked manner.

@@markp8295 Have you ever in your life held a hall effect sensor in your hand and then used it? If you say yes, tell me in words how and what did you do with it to make something work? I will know immediately if you have or not. Think now.

@@alchemy1 You are an arrogant piece of work aren't you. Anyway. In response, yes, but kinda no. The sensors I've used are tiny. The one I use most often, is the one in my smart phone as a compass and to detect live wires in my walls. (The Phyphox app is what I used instead of a "metal detector" app, as it gives raw data.). My only time really working with them is for designing a unit on a weed spray train. We mounted a tractor based weed spray module to the underside of an MPV to spot treat the 4 foot instead of blanket spray. Massive herbicide savings and at £50 a litre and up to 200 litres used in a shift (all nozzles including radiarcs), the 95%ish reduction in the four foot gave a massive contract tendoring advantage. However the tractor based system that we modified relied on GPS for speed sensing and trains travel a lot in "Urban canyons" (No GPS signal). So using a combination of accelerometers and hall sensors on a board we bought premade, we got it to take over the work when the number of detected satellites dropped below 4. The 3 axis accelerometer being a point in space couldn't tell orientation, the hall sensor did that using the Earth's magnetic field. The hard part was getting it to zero inside a train cab which is mostly ferrous and still provide reliable data. On the roof didn't work as overhead line equipment messed with it. Drivers cab was most consistent and allowed the operator to push a recalibrate switch if required. (When stationary.). Raw data taken 50 times a second (low rate because spraying was only done at low speeds.). Averaged every 5 readings with anomalies ignored, combined with the accelerometer data by plotting a point in space and then looking at the distance travelled in each axis with rotation of vector axis based on hall sensor data, and then that was used to estimate the speed. It was good for about 2 minutes before the errors stacked. But by that time, hopefully the GPS data had returned. If not, blanket spraying could be used.

@@markp8295, I should remind you, you started out wrong. Made up a statement to make sure it shows how you make things up. And it looks like this and I quote: "Your "comment" is buried somewhere and I'm not looking for it". Comments are in the order as they are left. This means my comment is right below. It is nowhere burried. Notice the term "Blue ocean 2 days ago".... ============================================ Then you talked about everything except the Hall sensor. Aside from Yes and No bit... very interesting. Therefore what I am about to ask is way more than you bargained for. It is because you know nothing about this Hall sensor mumbo jumbo hollywood style. If hall sensor has this ouput pin.... what is output? It is just a word. Is it positive or negative? How much voltage? Whatever voltage it is, does it show in the presence of magnet? Think again. I know you have no idea. That is my point. ========================================== Hey about having had that little thing in your hand once, why you didn't find out if it was true? If it actually does act like what it says in this video and the other ones as they all preach the same thing. ============================================= I am not arrogant. I am real and real is ovewhelming and it is percieved as arrogant. ============================== Now this one then is way over your head. Why is the output of these sensors are accomodated with a pull up resistor to the positive rail aside from triggering the base of a transistor. And the magnet passes by the Hall does exactly what to its ouput? Oh jee.

Then you can answer the questions in my comment, no problem.

For sure bud, tell me about it!

Are you sure Saitek X55 uses hall effect sensors? I thought deadzones in the pots absolutely plagued that series of controller.

Many things we use today would have been considered magic 100 years ago. So in a way you are right

crankshaft position sensor

I'm here for automotive as well! :D

It is likely that your sensor is a magneto-resistive sensor, not a hall effect sensor. In the MR sensor, the resistance of the sensor changes with different magnetic field applied, which could be induced by the tone wheel (or disc) on the ABS system. I found this helpful: autofella.com/how-does-abs-sensor-work/

I have an older Thrustmaster 16k that uses hall effect sensors. FAR superior in every way to the more popular and expensive Potentiometer driven HOTAS setups they sell these days. Having no physical connection means it will keep on working until the silicon degrades in 20...30 years or more.

@@jong2359 They don't want to use it because of money. I wish that in future We see a controllers with hall effect sensors.

Usually a turbine is placed in the flow and inside the pipe/tube with its rotational axis parallell to the flow lines of the fluid. The turbine is free to rotate but constricted along the flow. One or more magnets are fixed along the perimeter of the turbine which at each revolution triggers a Hall effect sensor sitting just outside the wall of the pipe/tube. The speed of the turbine, and further the number of magnet passes per time would indicate the flow. A downside to this design would be that the turbine itself affects the flow by increasing the resistance as well as increasing the probability of turning the flow from laminar to turbulent. You would also have to consider the slipping, or the fluid that passes without adding speed to the turbine, of the turbine as well.

Impossible to find. And she only seems to be like that !