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A question on Calibration on In-line Laser Micrometer

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thunder001

#1
I'm currently working on setting up the proper level of calibration need to meet a 4:1 on laser micrometers we have online. The laser micrometers have a resolution of .0000001" and the smallest product we measure is .00025". I believe that I we need a pin gauge that is XX grade with a tolerance of .00001". Can someone let me know if I'm correct? Thanks in advance.
 
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dgriffith

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#2
Re: 4:1 Calibration on In-line Laser Micrometer

I'm currently working on setting up the proper level of calibration need to meet a 4:1 on laser micrometers we have online. The laser micrometers have a resolution of .0000001" and the smallest product we measure is .00025". I believe that I we need a pin gauge that is XX grade with a tolerance of .00001". Can someone let me know if I'm correct? Thanks in advance.
First, I assume you want to ensure the mic can measure something 4x smaller than your normal product measurement? You're not really looking for a 4:1 for "setting up the proper level of calibration need to meet a 4:1 on laser micrometers we have", right? I want to read it correctly.
The mic has a laser with a specific wavelength. What is it? For instance, our helium-neon laser manometer's wavelength is 25 millionths inch (0.000025 in.). That is the smallest sensitivity/count the interferometer can resolve. The display is 0.0001 inch Hg.

Is your mic really resolving one-tenth millionth?

Anyway, if you can measure correctly reference pin gages that are at least 4 times smaller than your product, then that would give me a warm fuzzy.
 
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