Magazine – PDF - Cal Lab Magazine
Magazine – PDF - Cal Lab Magazine
Magazine – PDF - Cal Lab Magazine
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Volume 20, Number 1www.callabmag.comFEATURES20 Metrology 101: Verifying 1 mW 50 MHz Power Reference OutputStanding Wave Ratio (SWR)Charles Sperrazza24 Stating Best Uncertainties Over a Range of ValuesDavid Deaver31 An Uncertainty Analysis for a Positive Displacement LiquidFlow <strong>Cal</strong>ibrator Using the Water Draw TechniqueWesley B. EnglandDEPARTMENTS2 <strong>Cal</strong>endar3 Editor’s Desk11 Industry and Research News15 New Products and Services44 Classifieds44 <strong>Cal</strong>-Toons by Ted GreenON THE COVER: Micah McDonald is preparing to Cross-Float a customer’s Ametek deadweight tester against Alaska Metrology &<strong>Cal</strong>ibration Services’ Ruska 2485 deadweight tester. Micah is performing this work in a Mobile <strong>Cal</strong>ibration <strong>Lab</strong>oratory performingon-site work for BP Exploration and ConocoPhillips in Prudhoe Bay, Alaska.Jan • Feb • Mar 20131<strong>Cal</strong> <strong>Lab</strong>: The International Journal of Metrology
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