What is Metrological Traceability - Requirements Traceability and Calibration

In this episode of the Metrology Training Lab where we demonstrate how to calibrate, we are going to talk about requirements traceability, or sometimes called metrological traceability.
Here’s the question that traceability and calibration answers - say I make a measurement with this caliper. How do I know that the inches or millimeters on this caliper are the same as everybody else’s inches or millimeters? How do I relate this measurement back to some defined standard, like the definition of the meter?
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[@AndyKingsmill]

Well done! Great set of videos Mitutoyo!

[@israelbarrios1549]

Excellent thank you

[@clementugoani6717]

Thanks a lot for this. Apt explanation

[@swaraj1501]

Awesome its very helpful...Thanks from INDIA 🇮🇳

[@MitutoyoAmerica]

Glad it was helpful!

[@hughmac13]

Jim, just out of curiosity how often do you send your masters to NIST and how often do you check your working masters? BTW I read all the metrology publications you guys put out.

[@timthompson468]

Great video. I wonder what they used to measure the original meter, and the copies. That must have taken a considerable effort in the days before laser interferometers. Of course, then there’s the question of how one measures the distance from the North Pole to the Equator? Might make for some fun Sunday evening internet research. I’m glad someone else figured that one out though.

[@akshaybagal4029]

Sir please if possible make a video on a best way to handle vernier caliper & micrometer.

[@MitutoyoAmerica]

Hello, we have a few videos for both the Vernier Calipers and Vernier Micrometers. For our Vernier Calipers, we have the video "Vernier Caliper Use from Mitutoyo" which will show you how to use one. kzbin.info/www/bejne/gIfYl353pcimmas We also have a video "How to Read Vernier Calipers in Inches" which will show you how to read out your measurements. kzbin.info/www/bejne/oYDLh3mQebV8iqc For our Vernier Micrometers, we have the video "How to - Use a Vernier Micrometer - Mitutoyo America" which will show you how to use one. kzbin.info/www/bejne/q6e6iaZ8msycj8U We also have a video "How to Read a Vernier Micrometer (how to use a Mitutoyo micrometer)" which will show you how to read out your measurements. kzbin.info/www/bejne/eJzLZZRvfbdqobs We hope these help, and please let us know if you have any further questions.

[@fuadsaeed9856]

an amazing knowledge carrying for more elaboration please any pdf references

[@m.sabir21]

Thanks for the excellent explanation, but i do not agree with your statement in last minutes of the video that lower CMC means lab can measure accurately.

[@aion2177]

oh wow.. interesting.. :)

[@bekanav]

Actually meter wasn't based on circumference of the Earth but distance from equator to north pole. One tenth millionth part of that was decided to be one meter. So distance is 10 000km.

[@dr.jimsalsbury695]

I think we are both right. It was from the circumferential distance from the equator to north pole, based on a measurement of the circumference of the Earth from the north to south of France in the late 1700's.

[@engelbob8402]

You sold me

[@warplanner8852]

ZZZZZZZZZZzzzzzzzzz......

[@clayz1]

I want to see you in the front of the class from now on.