Can piezovelocity sensors go to very low frequencies?
No. Piezovelocity sensors are limited by the amplifiers ability to provide gain to convert the low frequency acceleration signal to velocity. Therefore, 500 mV/g accelerometers are recommended below 1.5 Hz (90 cpm). However, below 60 Hz (3600 cpm), piezovelocity sensors provide much higher outputs than 100 mV/g general purpose accelerometers.
