The following document describes signal conditioning circuits for Piezeoelectric sensors. I was interested in knowing which model should I use when designing signal conditioning circuit for piezelectric sensor.
Tell me more
×
Electrical Engineering Stack Exchange is a question and answer site for
electronics and electrical engineering professionals, students, and enthusiasts. It's 100% free, no registration required.
|
|
||||
|
|
|
If you can limit the load capacitance of the cable and amplifier, you can use the voltage model. This requires that no cable is involved as cables tend to add 20~30 pF/ft. Otherwise the charge model must be used and a charge amplifier is required. This is how accelerometers work with cables from sensor to amp. |
|||
|
|
You can find some advantages and disadvantages of the approaches here: |
|||
|
|
