[Jason] has continued to plug along with his sonar build and recently showed up a monostatic active sonar using a piezo element and microphone. Regular readers will remember [Jason’s] experiments from ...

Drums! You hit them, and they vibrate. It’s kind of fun. Piezoelectric elements can create electric current when they vibrate. [Will Dana] put two and two together to try and charge his ...

Piezo Trigger Switch circuit described here is a microcontroller-compatible shock/impact sensor switch module works on 5VDC supply. The whole circuit can be assembled on a 5×7 cm common circuit board.

Murphy’s Law predicts that it takes the first 99% of your time budget to finish the first 99% of a job and the second 99% to get it completed. The history of piezoelectric motors can serve as a good ...

A BRIEF outline of the history of the crystal filter has been publishad by J. E. Bsnson (A.W.A. Tech, Rev., 5, 191; 1941). The earliest application of piezo-electric crystals to frequency - selective ...