xy graph cutting data

[glskinner84]

I don't believe there's any signal conditioning between the two...I am hooking up the NI9215 with the same two BNC connectors that I connect to my scope. I put a bridge wire from the AI1- to the com port. I'm still getting the same signal.

[mateh]

How is your scope channel configured? 1 Mohm input impedance? AC or DC coupled? What is the model number of your accelerometer/driver?

[glskinner84]

The O-scope II is a DOS based scope. It's using 1 Mohm input impedance, set to AC coupled. The accelerometer is a Columbia 3030 with a 4102M charge amp.

http://www.atcweb.com/oscope.htm the scope specs

[glskinner84]

I guess that means I need to get a 1mohm resistor for my 9215?

[mateh]

Would it be possible to switch your scope to DC coupled and post a screenshot of the measurement? I'm curious what a "good" signal looks like, including any offset.

[glskinner84]

Changing the coupling on the screen doens't seem to do anything but here's the signal

[Hatef.fouladi]

could you send data in file for analyse

[glskinner84]

Here's the data from the 9215. I attached my vi for reference.

[alexderjuengere]

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@glskinner84 wrote:

Here's the data from the 9215. I attached my vi for reference.

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hi,

I agree with @mateh, this has nothing to do with the XY Graph, but is rather an intrinsic error within the data.

 

[glskinner84]

How do I go about troubleshooting this? I'm stuck at this point in my development...