I am working on a project where we are measuring current and voltage waveform of a DC Chopper. We are using SCXI 1120 to get the feedback. My question is whether we can disable the filters altogether?

andhare · ‎06-03-2003

I am enclosing a waveform doc which we wish to be captured by DAQ6052E PCI and SCXI1120 (only 3 channels are used). Please confrim if I can use SCXI1120 and DAQ6052E PCI without any problems.

JustinBritten · ‎06-05-2003

Andhare,

If you would like to increase the bandwidth of the SCXI-1120 to be greater than 10 kHz you can remove the capacitors on the filter. This will increase the bandwidth to somewhere between 40 kHz and 50 kHz which is a limitation set by the isolation amplifier.

To eliminate the 10 kHz filter, place the jumper in the 10 kHz position, and remove the following capacitors (per channel):

Channel 0 C001, C002, and C101
Channel 1 C003, C004, and C102
Channel 2 C005, C006, and C104
Channel 3 C007, C008, and C105
Channel 4 C096, C207, and C209
Channel 5 C106, C208, and C210
Channel 6 C009, C010, and C097
Channel 7 C011, C012, and C107

Keep in mind that doing this, or any other hardware modification, to your SCXI module will void any and all
warranties on your hardware provided by National Instruments.

Regards,
Justin Britten

Applications Engineer
National Instruments

Signal Conditioning

I am working on a project where we are measuring current and voltage waveform of a DC Chopper. We are using SCXI 1120 to get the feedback. My question is whether we can disable the filters altogether?

I am working on a project where we are measuring current and voltage waveform of a DC Chopper. We are using SCXI 1120 to get the feedback. My question is whether we can disable the filters altogether?

Re: I am working on a project where we are measuring current and voltage waveform of a DC Chopper. We are using SCXI 1120 to get the feedback. My question is whether we can disable the filters altogether?