Welcome to the Piezo SHOCK Show #26. d31 is a negative number. Why? and more importantly, why should you care? You should care because you can learn and understand a lot of what happens in a piezo from understanding why d31 is negative. In this episode, I explain not only why d31 is negative, but recap many important basics of piezoelectric material properties.

Demystify your understanding of the piezoelectric charge constant and click the link and watch the video - you will thank me!

Watch the episode here: https://youtu.be/9X7TsNrFk_I

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I've posted the video notes below: