Hello,
I am using DAQPad-6015/6016 for acquiring an output voltage signal through Analog channel aio in differential mode with the aio connected to the output and ai8 connected to the ground of the board. There is difference in the measured output signal between the CRO and the DAQ as in the attached images. The output when seen on CRO is at 3v whereas the output acquired through DAQ is fluctuating due to some noise I guess. How to make the DAQ output signal to be 3V as same as CRO.I know that the Average DC can be used but this is the output of a pulse senor without placing a finger on it but when a finger is placed it will has a pulse as output contaning some frequency components in it. So,I cannot use average Dc or mean.Is there some problem with DAQ acquiring itself?
How to remove this noise.Can anyone help me out with this.
Thanks.