I have set-up a SCXI hardware system set up recently. Chassis - SCXI 1000 Module - SCXI 1102C Terminal block - SCXI 1303
Sensor measurement made thru these channels connected on the 1303 show some undesired filtering which may be due to some inbuilt filter which I do not know of. I have already changed the 10 Ohm resistors on the terminal block with the 10 M-Ohm resistors yet no improvement in the signal quality.
On each channel, the SCXI-1102C has a three-pole lowpass filter witha 10 kHz cutoff frequency. Is this the filtering that you are seeing? If not, what "undersirable" filtering are you seeing?
Maybe that is the filtering that I see. I do not have a frequency component over 100 Hz in my signal. So I dont really see how this filter can affect my signal. However, I am sure that the signal is filtered, maybe by this 3-pole filter or something else.
I checked the signal on the scope and the signal has a noise of amplitude of about 0.24 mV. But after recording the signal thru the DAQ system, I do not see this amplitude. The signal is just a flat line.
