Sorry to come back to a topic that has already been discussed quite a lot but I would like to better understand.
I am using H40 load cells from Bosche. I have calibrated them and i apply a temperature compensation which is a simple linear function of temperature. Below is the graph of what I measure with the best load cell that I have when no load is applied to the scale. See graph below. With temperature compensation, max error is 25g and mean error is 5g (my worse load cell has error ~2.5 higher). I can probably live with that (at least with the best one) but I really don’t understand why I have so much more fluctuations during day time than during night. Initially I thought it was because the load cell was receiving direct sun light but when I make sure the scale is in the shadow, the fluctuations are the same.
Any idea ?
5 posts were merged into an existing topic: Untersuchung und Datensammlung zur Temperaturabhängigkeit des gesamten Wägezellen-Subsystems