Temperature of workpieces

[[Al...]]

How is your feeling about the importance of the workpiece temperature?
How do you use the functionality of compensation in your daily business: the sensor is at its standard position or do you adapt it to each workpiece individually?

And what would you think about knowing the temperature before you start the measurement?

[[To...]]

A few questions to you

What kind of tolerances are you trying to hold?
How big are your parts?
What temperature is your environment?
What temperature is your part?

[[Al...]]

to keep it as simple as possible I'll take a sample application:
tolerances are <10 µm with lengths of approx. 500 mm
environment is an air conditioned measuring room at target temperature of 21 °C
workpiece temperature varies between 21 and 24 °C, sometimes higher as it comes from production areas

[[To...]]

Yes, certainly temperature compensation should be considered in this application.

[[Fr...]]

3°C workpiece temperature variation on a 500 mm length workpiece would lead to a geometric workpiece change (thermal expansion) of roughly:
36µm for aluminum workpieces ((24 µm/K/m)*0,5m*3K)
17µm for steel workpieces ((11 µm/K/m)*0,5m*3K)

So yes, temp compensation is important 😉

Regards,
Frank