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Seeking PVDF vibration sensor

Seeking PVDF vibration sensor

Seeking PVDF vibration sensor

We are currently developing an acoustic lung imaging system and are looking for a light and very sensitive vibration sensor that could be used to pick up transmitted acoustic vibrations on the human chest. I am wondering if there are any PVDF devices that would be suitable. The device should ideally be a very light disk of 0.16 to 1.5 in^2 (1 to 10 cm^2) and have some sort of shielding against environmental noise. I've heard of the "Atochem SDT1-028" but I'm unable to find it anywhere. I am grateful for any tip. (You can also email to apohlmann@ieee.org) Andreas Pohlmann MIRL Oxford

RE: Seeking PVDF vibration sensor

This sounds interesting- could you tell me what PVDF stands for?

RE: Seeking PVDF vibration sensor

PVDF stands for Polyvinylidene Fluoride.  It is a piezoelectric plastic, also commonly known as Kynar.

RE: Seeking PVDF vibration sensor

I found the SDT1-028, it is now being sold by Measurement Specialities Inc. (http://www.measspec.com) for a rediculously cheap $25. I'm still curious if there are any other transducers. Please drop me a line if you know of any. Cheers

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