Articles Published in Cal Lab Magazine
by Michael Johnston Due to the high accuracy of the long scale (8½-digit) meters, the standards and methods required to perform a verification of the device often make automation of the process difficult. Alternatively, guardbanding […]
by Michael Schwartz Writing automated calibrations and controlling test equipment is easy. But once you have the automation working, now it’s time to calculate the uncertainties. Often calculating uncertainties and documenting the results takes longer […]
by Dr. George Anastasopoulos This article has been written during the final draft (FDIS) stage of ISO/IEC 17025. As usual, only editorial changes are expected between FDIS and the final version of the standard. ISO/IEC […]
by Paul Hanssen It’s a familiar story. We’ve all been there. Your kids, wife, friends (and maybe even your dog) ask: “What is it you do again?” “Metrology,” you say. “Oh right, meteorology. Is it […]
by Richard Fertell, Hamed Ershad, York Xu, Osborne Gumbs, & Tammy Tran This article is the second of a series describing how to perform liquid flow rate calibrations at fluid temperatures below +5 °C and […]
by Henry A. Zumbrun Imagine that a satellite is launched into space and communications are intermittent. This happens because the satellite is wobbling, which causes connection problems in the receiver. The cause of the wobbling […]
by Roland A. Boucher When the French proposed their first metric system in 1723, they had no idea it had been invented by the ancient Mesopotamians 5000 years earlier. Just as the French proposed to […]
by Dr. Alex Lepek The purpose of this paper is to initiate standardization between calibration labs and users of the file for exchanging calibration data. Experience has it that to agree upon a file that […]
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