Measuring a very fine wire with 10 µm precision

Using Arduino Project Guidance
45

GoForSmoke:

JimboZA:
This is a nice diagram explaining the difference between accuracy and precision

In machining we would specify that precision as 'tolerance'. Every cut is to some measure with some tolerance (like +/-0.1 or maybe +0.1/-0.0).

But even the device(s) used to measure that such 'tolerance' is within specification or not is subject to a variation in precision. Accuracy is a poorly understood property in the real world.

Lefty