Amplifier for piezoelectric sensors
These amplifiers convert the charge output of a piezoelectric sensor into a proportional voltage.
The charge output is used as an input variable for analysis systems, and can be digitized in an analog-to-digital (A/D) converter if necessary.
Amplifier for piezoresistive sensors
Connection of piezoresistive sensors requires a piezoresistive amplifier, which serves several functions:
• Supplies measuring bridge with constant current
• Amplifies bridge voltage
• Voltage or current output selectable
The amplifier output signals can be digitized in an analog-to-digital converter (ADC) if necessary.