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Outside Micrometer Calibration – How to Calibrate

In Episode 6 of the Mitutoyo Metrology Training Lab series, we look at how to calibrate outside micrometers.

Calibration is a search for errors and we want to develop a calibration method that efficiently hunts down and finds any potential errors in the measuring instrument. So how do we best do that for an outside digital micrometer? Well, there is a nice American National Standard for micrometers, called ASME B89.1.13, and the calibration method we’ll be discussing is based on that standard.

In past episodes, we have defined the calibration of measuring instruments, discussed the purpose of calibration, and introduced important aspects of what makes a good calibration method. In this episode, we will apply all those ideas to the calibration method for a micrometer.

Calibration is a search for errors and we want to develop a calibration method that efficiently hunts down and finds any potential errors in the measuring instrument. So how do we best do that for a micrometer? Well, there is a nice American National Standard for micrometers, called ASME B89.1.13, and the calibration method we’ll be discussing is based on that standard.