Building a vibration sensor
Building a vibration sensor
(OP)
I'm building an acceleration sensor for a project with low g's. (.05<g<1.0 max g = 2.0) I've researched several sensors on the web and have selected a sensor with a sensitivity of 120 pV/g.
My understanding is there is a known mass that reacts to the vibration. This reaction is output as a certain voltage. What I am attempting to do is interface my accelerometer with a circuit board.
Would anybody know how I would do this? I would like to make a direct connection to the ADC without using an amplifier circuit. With this in mind, what would be the best way to do this? If I go as high as 2.0g's would you know how I could limit this voltage to keep it from overloading the processor?
Any help would be greatly appreciated.
My understanding is there is a known mass that reacts to the vibration. This reaction is output as a certain voltage. What I am attempting to do is interface my accelerometer with a circuit board.
Would anybody know how I would do this? I would like to make a direct connection to the ADC without using an amplifier circuit. With this in mind, what would be the best way to do this? If I go as high as 2.0g's would you know how I could limit this voltage to keep it from overloading the processor?
Any help would be greatly appreciated.





RE: Building a vibration sensor
if the sensitivity is 120pC/g, which is more likely, then you need to have a charge amplifier in the circuit, you can't just plug the accelerometer into an A/D.
Cheers
Greg Locock
RE: Building a vibration sensor
TTFN