Hello,
I have a piezo electric sensor who's output is around +- 900mVpp. I want to bias this voltage around an operating point of 2.5V so I can reliably read it using one of the Arduino analog inputs (these inputs can read 0-5V with a 10 bit resolution).
I've tried connecting 2.5V in series with the sensor, but everytime I do that the output is always zero (instead of 2.5V + sensor output). Does anyone know what I'm doing wrong?
This is the sensor I'm using: http://www.sensortech.ca/site/index.cfm?DSP=Page&ID=120
Thanks,
Jay
I have a piezo electric sensor who's output is around +- 900mVpp. I want to bias this voltage around an operating point of 2.5V so I can reliably read it using one of the Arduino analog inputs (these inputs can read 0-5V with a 10 bit resolution).
I've tried connecting 2.5V in series with the sensor, but everytime I do that the output is always zero (instead of 2.5V + sensor output). Does anyone know what I'm doing wrong?
This is the sensor I'm using: http://www.sensortech.ca/site/index.cfm?DSP=Page&ID=120
Thanks,
Jay