The international community uses proficiency testing as evidence of the competence of a laboratory. But many laboratories see proficiency test participation as just a requirement of the ISO/IEC 17025 standard rather than a very useful […]
by Mike Zecchino and Mark Malburg Calibration labs frequently need to certify the average roughness (Ra) of calibration specimens or samples. This seemingly straightforward task, however, involves more than running a roughness gage across the […]
by Heidi Foldal Novo Nordisk, established in 1923 and headquartered in Denmark, is a global healthcare company dedicated to providing medication for chronic diseases. Our operations are managed through process management across the organizational structure, […]
by Dan Wiswell Many years ago, I worked in a building in Boston that had a plaque on an outside wall that commemorated the invention of the telephone by Alexander Graham Bell. Passing by it […]
Let me start with “I hate it!” It is okay for simple tasks, but calibration and metrology is not a simple task. Often, what we do in automation is very complex—getting into the low-level settings […]
PTB-News 3.2024 – The deviations of rotary tables can be directly measured on coordinate measuring machines (CMMs) in all six degrees of freedom by means of a self-calibrating procedure using a ball plate. A new […]
by Michael Eckart Wireless products are everywhere. From wireless communications devices to children’s toys to military weapons systems, more and more products are using radio frequencies (RF) (100 kHz to 1 GHz) and microwaves (1 […]
by John Juroshek, C.M. Wang, George McCabe For the past five years, the Automatice RF Techniques Group (ARFTG) has conducted a measurement comparison program for vector network analyzers. The results of those measurements varies substantially, […]
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