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

 

[brin]

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

 

[butelja]

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

 

[andreas]

I found the SDT1-028, it is now being sold by Measurement Specialities Inc. (<A HREF="

http://www.measspec.com"

TARGET="_new">

http://www.measspec.com</A>)

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