A piezoelectric transducer with sensitivity of 30 mV/kPa is expected to be used in the range varying from 0 kPa to 100 kPa. The readout circuit has peak noise amplitude of almost 0.3 mV and measured signals more than the full pressure ranges are encoded with 10 bits. The smallest pressure which emits a non-zero output, in units of Pa, would be almost
A. 10
B. 100
C. 240
D. 300
Answer:B
A piezoelectric transducer with sensitivity of 30 mV/kPa is expected to be used in the range varying from 0 kPa to 100 kPa. The readout circuit has peak noise amplitude of almost 0.3 mV and measured signals more than the full pressure ranges are encoded with 10 bits. The smallest pressure which emits a non-zero output, in units of Pa, would be almost
A. 10 B. 100 C. 240 D. 300