High sensitivity cymbal-based accelerometer Available to Purchase

A high sensitivity piezoelectric accelerometer has been developed by replacing the conventional piezoelectric rings with a cymbal transducer. The sensitivity of the cymbal-based accelerometers containing cymbal transducers with different endcap thicknesses and different seismic masses has been measured as a function of driving frequency. Due to the high $d33′$ coefficient of the cymbal transducers, the cymbal-based accelerometers have a high sensitivity of $∼97pC∕ms−2$ with the amplitude rise of 2.85% $(<1dB)$ at one-third of the mounted resonance frequency $(3.38kHz)$⁠. The effect of the seismic mass, the resonance frequency, and $d33′$ coefficient of the cymbal transducers on the sensitivity and the frequency range of the cymbal-based accelerometers are reported.