by Ted Doiron Uncertainty has proven difficult to implement in calibrations labs. The subject has advanced mathematics and statistics that are often needed for scientific research, but are seldom needed to develop uncertainty budgets for […]
A new release of GAGEpack from PQ Systems features more efficient drag-and-drop label actions, automatic recording of temperature-humidity USB module (THUM) data, and additional options for visual styles. An improved, flexible To Do list and […]
By Jon M. Baldwin, Kim D. Summerhays and Daniel A. Campbell Comprehensive tools for evaluating the uncertainty of measurements made with coordinate measuring machines (CMMs) have been available for several years, yet their widespread application […]
by Richard Koops, Ancuta Mares, Jan Nieuwenkamp Line scales are important physical standards of length used for accurate positioning or measurement in one, two or three dimensions. Depending on the application, line scales can have […]
By Mahesh Chander Gupta Like other instruments, engineering-grade ruled scales require traceable calibration. Because the calibration is usually carried out by sophisticated comparators that are expensive to buy and maintain, only a handful of laboratories […]
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