Hi,
I am fairly new to Labview and DAQ setups. I am trying to initally read a shock voltage from an Omega accelerometer, powered by a external DC battery power supply (http://www.omega.com/pptst/ACC103.html). When I try to acquire data in differential mode (leads hooked up to ACH7 and ACH15), I seem to get a ton of noise, as well as the signal jumping around just by barely touching the cable. Under an RSE configuration, the noise settles down (CH- connected to AIGND). I am expecting a small signal voltage (converion is 10mV/g), but am reading between 2 and 3V for very tiny drops (6 in), which would equate to 200-300g of acceleration (seems very high). I have read that DIFF is a preferable setup, but how do I eliminate the noise? Is there a better way to hook this up? I also took a look at the "Field Wiring and Noise Considerations for Analog Signals" tutorial that someone suggested on another thread, but still don't have a clue. I will attach my .vi as well if that helps. Thanks.
