Articles Published in Cal Lab Magazine
by Patrick J. Abbott The International Prototype Kilogram (IPK) realized the unit of mass in the International System of Units (SI) for over 130 years. On May 20, 2019, all fundamental quantities of the SI […]
by Brian Walker Calibration methodology for Vector Network Analysis has evolved over the years. The first calibrations were simple normalizations. Later, with a better understanding of the systematic errors a calibration methodology involving the measurements […]
by Christopher L. Grachanen Vector Network Analyzers (VNA) are used to measure a variety of RF parameters such as transmission loss, reflection loss, phase and group delay for a variety of passive RF devices and […]
by Joseph P. Fuehne, Ph.D., P.E. The Purdue Polytechnic Institute in Columbus utilizes metrology tools with targeted measurement artifacts, which may be 3-D printed or machined, to facilitate learning and provide opportunities to demonstrate competency […]
by Henry Zumbrun One might read the headline and think why is mV/V or a calibration curve relevant to me or my instrumentation? If you use load cells or other instrumentation that are calibrated using […]
By Hening Huang A variety of statistical methods are available for estimating consensus values in interlaboratory studies (including key comparisons). These methods, although developed based on different approaches and ranging from simple to complex, produce […]
By Dennis Destefan and William Hinton It is well accepted in the metrology community that industry does not have a sustainable source of trained calibration professionals. We explore the availability of metrology-related training and its […]
By Hannah Eilers Where can you find the latest metrology news and information, introductory to NMI-level training, and valuable industry connections? All of this can be achieved at annual trade shows. And believe it or […]
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