calibrating mics

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Jan 20, 2003 | 01:04 AM

inliner

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calibrating mics

What's the correct way to calibrate the outside micrometers? I have the standards and the tool, but am not sure how to go about it.

Jan 20, 2003 | 03:06 AM

Torque1st

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calibrating mics

Do you have the clutch type thimble on your micrometers?

Jan 21, 2003 | 01:50 AM

inliner

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calibrating mics

If the clutch type means the thing on the end that clicks when you tighten the thimble than yes.

Jan 21, 2003 | 02:24 AM

Torque1st

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calibrating mics

Make sure your anvill and standard surfaces are clean. You can measure the thickness of a piece of fuzz with these things. Adjust your mike with the standard in place with the clutch to get even pressure for each end of the range and check to see how much the reading differs at each end. Use the little spanner wrench to adjust the barrel of the mike the average of the difference at both ends. In other words if one end reads .0002 big and the other end of the range reads .0004 big adjust the mike to read .0003 less (split the difference). If you can't get consistent results with the same reading every time something is wrong and you need professional service.

Hope this helps.