Assistant OR-9234/Sound and Vibration: being reset to zero (crazy) automatically input signals

Hi all

I have a voltage source and a force as entries in a sensor module DAQ 9234.

The software focuses both signals whenever they change. For example, if the voltage is read by data acquisition increases up to a constant value, the software will trace an increase in tension, followed by a slow return to zero. Similarly, if I increase the force applied to the force sensor and keep it at a constant value, the program will draw an increase in force, followed by a return to zero.

Here is a graphical representation of the problem, which uses the sensor force for example:

The sensors are passive. The sensor is a PCB 02 208, and the source of tension comes from a LDM-1000 signal conditioner, which receives a signal from a MHR 250 LVDT. By the LVDT core displacement changes are interpreted by the signal conditioner, which translates as the measure of a voltage value that can be read by data acquisition.

Thank you in advance.

I assume you have the rule 9234 on coupling AC mode, while you should use DC coupling.

-AK2DM

Tags: NI Hardware

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