mark.arkinstall
New Member
I would like to build a battery powered low voltage amplifier but don't know where to find a suitable circuit.
The purpose of the amp is as follows. As a structural engineer i need to measure building vibration. I have an accelerometer and a analog to digital converter which has a +/-10V range, that powers up and transfers data to my laptop via USB. Sometimes the signial from the accelerometer is so low that it needs to be amplified so i can take advantage of the full +/- 10V range . The battery is for mobility on site. I am envisaging a rechargeable battery.
As building vibration occurs at low frequency the amp needs to operate down at frequencies as low as 0.2Hz.
Ideally the amp would have low noise, and multiple preset gain settings to chose from.
I would appreciate any help at all. I did electronics at school for 3 years so i have some familiarity with the jargon.
thanks in advance
Mark
The purpose of the amp is as follows. As a structural engineer i need to measure building vibration. I have an accelerometer and a analog to digital converter which has a +/-10V range, that powers up and transfers data to my laptop via USB. Sometimes the signial from the accelerometer is so low that it needs to be amplified so i can take advantage of the full +/- 10V range . The battery is for mobility on site. I am envisaging a rechargeable battery.
As building vibration occurs at low frequency the amp needs to operate down at frequencies as low as 0.2Hz.
Ideally the amp would have low noise, and multiple preset gain settings to chose from.
I would appreciate any help at all. I did electronics at school for 3 years so i have some familiarity with the jargon.
thanks in advance
Mark