Articles – Page 33 – Cal Lab Magazine

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High Attenuation Measurement of Step Attenuators

June 14, 2011 Office

By Sulan Zhang This paper introduces a solution for high attenuation measurement of step attenuators. Fundamentally, this high attenuation measurement method is based on the cascaded 2-port network and S-parameter theory. This method is to […]

Balance Calibration – A Method for Assigning a Direct-Reading Uncertainty to an Electronic Balance

June 14, 2011 Office

By Mike Stears Like many calibration laboratories, our laboratory provides calibrations for a wide range of instrumentation. For the most part, we calibrate the instrumentation to the manufacturer’s published specifications. As one of our services, […]

Metrology 101: How to Calibrate a Single Channel Adjustable Volume Pipette

June 14, 2011 Office

By Ann Lenhardt Training Objective: Enable the pipette user to assess the performance of a single channel adjustable volume pipette. The method used for the performance analysis is the gravimetric method. Read the Full Article […]

A Paperless Calibration Department

March 12, 2011 Office

by Jay Bucher As metrology/calibration departments need to comply with various requirements, such as 21 CFR Part 11 and ISO 13485, they find their processes increasingly need to be more dependent on electronic systems. The […]

The Effect of High Transverse Inputs on Accelerometer Calibration

March 12, 2011 Office

by Richard W. Bono, Eric J. Seller ISO 16063 part 21 defines the back-to-back comparison technique for accelerometer calibration. Included in its most recent revision is a recommendation for acceptable limits on shaker transverse motion […]

Development of the New Line Scale Calibration Facility at the Dutch National Metrology Institute VSL

March 12, 2011 Office

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 […]

Metrology 101: How to Function Check a Spectrum Analyzer

March 12, 2011 Office

by Brien Gauthier Increase your efficiency and effectiveness by focusing in on any major problems your test unit may have with a quick and simple function check. The analyzer used for the example is an […]

A New Compact Low-Cost 1kN Force Standard at NIS, Egypt

October 1, 2010 Office

By M.I. Mohamed, A. Abu-Sinna, and A. Abu El-Ezz The National Institute for Standards (NIS), Egypt, has developed and constructed a new primary force standard, a 1kN deadweight machine (DWM) at its facility in Egypt. […]

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