Articles Published in Cal Lab Magazine
by Helko van den Brom, Gert Rietveld, and Jan Paepen The accurate measurement of small electrical currents is essential for the measurement of ionizing radiation as generated by radionuclides. VSL has been involved in the […]
by Dean C. Ripple, Michael J. Carrier, Richard E. Cavicchi, Christopher B. Montgomery, and Zhishang Hu A common degradation pathway for protein-based drugs is the growth of protein aggregates or particles. Counting and characterization of […]
by Michael Schwartz Today’s new high dynamic range power sensors are not built the same as the older generations of sensors. Older generations of power sensors only had a correction table for their frequency response. […]
by Michael Bair and Tim Francis Fluid pressure is a derived measurand (N/m2) that is realized primarily through manometers and piston gauges at the NMI level. Piston gauges are becoming more useful as primary standards […]
by Mark Kuster Metrology revolves around standards—measurement standards, normative standards, standard measurement practices, etc.—to achieve consistent quality results. To remain competitive, metrology, like other industries, also depends on automation and standardized interoperability to attain and […]
by Edward Morrell High-speed clearance sealed piston provers for measuring gas flow rates have been available for over twenty years and have gained wide acceptance as a fast, cost-effective, primary calibration instrument for gas flow. […]
by Charles Sperrazza Verification of the Standing Wave Ratio (SWR) of the 50 MHz 1 mW output power reference is a key step in performing a calibration of a RF power meter. Higher than desired […]
by David Deaver The Guides to Measurement Uncertainty (GUMs) give very prescriptive methods for calculating measurement uncertainty at individual points. Some laboratories undertake the calculation of uncertainty at many points and state them in their […]
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