Question

A piezoelectric pressure sensor has a bandpass characteristic with cut-off frequency of 0.1 Hz and 1 MHz, and a sensitivity of 100 mV/kPa. The sensor is subjected to a static constant pressure of 100 kPa. Its steady-state output will be
1. 0.V
2. 0.1V
3. 1 V
4. 10 V

Answer 1

Correct Answer - Option 1 : 0.V

Given that,

Cut-off frequencies = 0.1 Hz and 1 MHz.

Sensitivity = 100 mV/kPa

Static constant pressure = 100 kPa

Piezoelectric sensor is suitable only for dynamic inputs.

As the given input is static, steady state output will be zero.