Articles Published in Cal Lab Magazine
by M. Zeier, J. Hoffmann, J. Ruefenacht, M. Wollensack The evaluation of measurement uncertainties in vector network analysis is a demanding task. The metrology guide EURAMET cg-12 (formerly EA 10/12) is dedicated to this topic […]
by Hannah Eilers & Michael Schwartz The 141 MII (Measurement Information Infrastructure) & Automation Committee of NCSLI (National Conference of Standards Laboratories International) has been working to develop a new standard for the exchange of […]
Over the years I have watched several labs go through the decision process to purchase new hardware. Most labs have the same process: look at the work load requiring the new hardware, and calculate the […]
by Michael Schwartz Automation has its own quality system automatically built in. When software performs the same test, the same way over and over again, it can’t be wrong. There is no fake it till […]
by Donald Larson Many digital oscilloscopes have the capability of acquiring, displaying, and storing a digitized representation (the waveform) of an electrical signal. This digitization creates data, the waveform samples, that have discrete amplitude values […]
by Sita Schwartz, Editor The Colorado Engineering Experiment Station, Inc. (CEESI), a subsidiary of Western Energy Support & Technology, Inc. (WEST), provides accredited NIST traceable calibration for numerous types of flow meters for customers around […]
by Sean Nielson When choosing which instrument to use when calibrating pressure, the two most popular choices are deadweight testers and digital pressure gauges/calibrators with a pressure comparator. Each has its advantages and disadvantages. The […]
by Hening Huang This paper further explores the t-interval method and the mean-unbiased estimator for uncertainty estimation with a small number of measurements. It describes the logic behind the error bound-based definition of uncertainty, which […]
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