piezoelectric silicon nitride ceramic ring uses
Modeling and Design of a MEMS-Based Piezoelectric . 2020-7-27 · At the same time, a new piezoelectric microphone was introduced by Ko et al. [9] with an amplified sensitivity of 0.51 mV/Pa at radio range and a noise level at 18 dB SPL. This new microphone uses a 3mm 3mm piezoelectric membrane in the microspeaker device.
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