Articles Published in Cal Lab Magazine
by Jonathon Harben This paper explores the similarities and differences between a measurement uncertainty as described in the GUM and a manufacturer’s specification when the history of compliance testing results is taken into consideration. It […]
by Christoph von Rohden Potentials and limitations of commercial sensors for in-situ speed-of-sound measurements in liquids working with the time-of-flight principle are discussed on the basis of laboratory investigations and an extended sensor calibration in […]
by Jesse Morse If a person making a dc or low frequency measurement fails to select the proper cables, or to properly connect the shields the traceability chain for that measurement can be violated. This […]
By Tom Morgan A method is derived for calculating the resistance tolerances for non-linear resistance scales, whose accuracy tolerances are given in degrees of arc instead of percent of reading or range. Read the Full […]
By Thomas O. Maginnis, Ph.D. Thermal mass flow sensing is well established commercially for measurement and control of low gas flows in the semiconductor industry and elsewhere. Yet the basic theory of this critical flow […]
By Dean S. Williams What do you do when faced with a doubling of demand with virtually no increase in resources? Go LEAN. That was the approach Duke Energy’s Standards Lab took when it faced […]
By Roger Bond, Kelly Bray, Marcellino Valdez, and Matthew Rickard Abstract: As part of an undergraduate mechanical engineering course at California Baptist University, we have performed a design optimization study of a fin array for […]
By Ann Lenhardt & Erin Lenhardt The most common and economical method used for pipette calibration is gravimetric analysis, defined as the quantitative determination of an analyte based on the mass of a solid. Many […]
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