Calibration of pressure sensor

I have two pressure omegadyne transducers. I tried to calibrate the transducers via linear equations. The problem is that when I put the second slope of line transducer and the y-intercept, the first (slope of the line and intercept) changes automatically to the second parameter. Transducers are mounted on two different channels. I can't have two different equations for the two transducers. I appreciate it if anyone has a solution to this.

Concerning

Ali,

When you're in the DAQ Assistant, on the configuration tab, in the input parameters of voltage is a Custom Scaling pull down.  If you who pull down, you can select Create new and which will allow you to install a custom scale for each transducer if you wish.  Just assign the custom scale for the appropriate channel once you have created the custom scale.

If you use the same transducers of beach and they have different slopes... I refer to them and buy some finding themselves in a few percentage points of each other on the range.  No one should sell you two producers of trans who have the same range that do not use the same slope... the y originally I see who need some tweaking, but not the slope!  .. just in my opinion.  I sent a lot of return of material that does not perform or has not been linear in its response.  ... again, just my opinion.

Enjoy!

Chad

Tags: NI Hardware

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