Articles Published in Cal Lab Magazine
by Henry Zumbrun Morehouse has been performing both ASTM E74 and ISO 376 calibrations for more than fifteen years. We have been calibrating in accordance with the ASTM E74 standard since its introduction in 1974, […]
by Michael Schwartz This paper covers the progress of the MII (Measurement Information Infrastructure) effort to create a standard for expressing a calibration laboratory capabilities, ISO/IEC 17025 Scope of Accreditation (SoA) in a XML formatted […]
by Jerry Eldred Although rise time is a common calibration measurement in pulse/function generators and some oscilloscopes, it is often not well understood. Making a good rise time measurement is somewhat similar to home stereo […]
by Richard Steven & Joshua Kinney Cone DP meters are a member of the generic DP flow meter family. Used extensively throughout different industries for quarter of a century, the cone meter is now a […]
by Sita Schwartz, Editor For an industry outsider looking in, an awful lot of metrology technicians and metrologists have their background in the military. There’s a reason for that: Precision Measurement Equipment Laboratories (PMEL) schools […]
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 […]
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