Surface Acoustic Wave (SAW) Torque Sensing Technology

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Transense SAW sensing technology can help to improve efficiency, reliability, and safety in electric propulsion systems for vehicles and aircraft.
This video explains the principles of using surface acoustic wave sensor technology to measure torque in an electric motor system and what the benefits of that can be. Electric propulsion is a rapidly growing area due to the drive to improve air quality and reduce CO2 emissions. In an electric drive system torque is typically calculated based on current, voltage, and speed measurements. The current state of the art means that true closed-loop control of electric motors is not possible. Implementing a robust and reliable Transense SAW sensor system allows for real-time torque measurement. This allows motor control to be improved and when used in conjunction with conventional current sensor systems provides a truly redundant, dissimilar safety check on the electric propulsion systems.
The sensors are totally passive on the shaft meaning there is no need for a battery or complex electronics on the shaft. The sensor is driven by a dedicated and proprietary ASIC developed by Transense which enables SAW technology to be deployed in a cost-effective manner.
For more content on SAW technology:
- Transense Website: www.transense.com/
- Transense on LinkedIn: / transense-technologies...
Contact us to discuss your torque-sensing requirements: www.transense.com/contact-us

Опубликовано:

26 сен 2021

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Комментарии : 7

@michaelrobbins1758 2 года назад

well presented

@transense Год назад

Thank you much appreciated. We have other videos available now, and some more to come if you are interested please subscribe.

@xm8909 Год назад

Hi, I think your technology is great and the video is too! But how does it differ from other manufacturers? I see there are a multitude of SAW Device patent holders and SAW Device producers. Can you pinpoint where your technology is superior to those of other manufacturers?

@transense 11 месяцев назад

Hi thanks for the question, Transense has patents relating to the design of SAW devices themselves particularly the AQP which is a robust SAW sensing element, the interrogation electronics and application patents in their use particularly in the measurement of forces and torque. Other manufacturers have SAW sensors to measure temperature, but our sensing elements are more industrialised, the design of the AQP makes it relatively easy to build the sensing element into a part compared to a simple SAW resonator that has no protection. We also have a dedicated ASIC to read the signals from the AQP's making the design and setup of a SAW based sensing system much easier than previously possible. We are glad you enjoyed the video!