Load Cell Temperature

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Well, I know that this is not directly related to the pycom ... - Jun 29, 2019 by jackson4

You weren't clear on the type of gauge that you're using. S... - Jun 29, 2019 by davef

Good stuff posted here. ... - Jul 26, 2019 by jackson4

jackson4

#82919

Load Cell Temperature | 29 June, 2019

Well, I know that this is not directly related to the pycom device, but the code and load cell are connected to the device so I am hoping to gain from the wealth of knowledge and experience on this forum.

Until a few weeks ago, I knew nothing at all about load cells and have never used one, now I know enough to be able to read one and understand the many factors that affect drift.

The one I am trying to crack right now is temperature drift, and rather than re-inventing the wheel, I wondered if anyone else had been through this exercise and can save me some time in understanding how to cope with it.

Obviously, the characteristics of the cell material will change with temperature, but will this be a linear offset that can easily be fixed with a factor variable or is it as I suspect much more than that?

Any insight into this would be most gratefully received!

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davef

#82920

Load Cell Temperature | 29 June, 2019

You weren't clear on the type of gauge that you're using.

Strain gauge load cells are the most common. These load cells have two gauges. The orientation of the gauges affects cell performance characteristics.

* Temperature compensated: Temperature compensation will be defined in the spec sheet. It will have two gauges mounted perpendicular to each other.

* Higher force sensitivity, greater change due to temperature variation: It will have two gauges mounted in the same direction.

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jackson4

#83089

Load Cell Temperature | 26 July, 2019

Good stuff posted here.

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