Piezoelectric smart material for breathing rate sensor

[MaterialsViews]

I think you would need to keep pretty still - the big advantage of this material is that it's very sensitive to slight changes in its size, and so any muscle movement related to standing up or walking around would probably give too much noise in the signal.

This is still very much a prototype, though (which answers your question, OaklandMann - apologies that we missed it before!) to prove the concept of the material, and so in the future I can see more robust, practical devices appearing.

[OaklandMann]

I'm working on a design project where this would be useful. What kind of sensor is this? Where can I buy it?