نتایج جستجو برای: power measurement

تعداد نتایج: 908168  

2014
Adrian E. Rendon-Nava J. Alejandro Díaz-Méndez Luis Nino-de-Rivera Wilfrido Calleja-Arriaga Felix Gil-Carrasco Daniela Díaz-Alonso

An analysis of the effect of distance and alignment between two magnetically coupled coils for wireless power transfer in intraocular pressure measurement is presented. For measurement purposes, a system was fabricated consisting of an external device, which is a Maxwell-Wien bridge circuit variation, in charge of transferring energy to a biomedical implant and reading data from it. The biomedi...

2016
Antonio Cataliotti Valentina Cosentino Dario Di Cara Salvatore Nuccio Giovanni Tinè

In the harmonic active power measurement, the highest uncertainties are generally introduced by the current and voltage transducers. In a previous paper, the authors showed that the current transformer (CT) can introduce significant errors in such measurement, especially if the phase shift between voltage and current is close to ±90 . In such condition the errors on harmonic power measurement a...

Journal: :Computers and Electronics in Agriculture 2016
J. B. W. Roeber Santosh K. Pitla M. F. Kocher Joe D. Luck Roger M. Hoy

Tractor hydraulic power is used on a wide range of agricultural implements; however, the availability of operational hydraulic data at points other than full engine throttle position is limited. Operators could utilize this hydraulic data to maximize field efficiency and minimize machinery costs when determining suitable machinery for field operations. A field usable hydraulic test apparatus ca...

2009
David Granados-Lieberman René de Jesús Romero-Troncoso Eduardo Cabal-Yepez Roque Alfredo Osornio-Rios Luis Alfonso Franco-Gasca

Power quality monitoring is a theme in vogue and accurate frequency measurement of the power line is a major issue. This problem is particularly relevant for power generating systems since the generated signal must comply with restrictive standards. The novelty of this work is the development of a smart sensor for real-time high-resolution frequency measurement in accordance with international ...

2007
Igor Vayshenker Xiaoyu Li David J. Livigni Thomas R. Scott Christopher L. Cromer

The optical fiber power meter (OFPM) is perhaps the most common type of test equipment used to support the development and implementation of optical fiber systems. To address the inherent metrology requirements, NIST has developed and implemented measurement services to help characterize these instruments [1]. These measurement services consist primarily of absolute laser power calibrations usi...

Journal: :Monthly Notices of the Royal Astronomical Society 2009

Journal: :The Journal of Political Theory, Political Philosophy and Sociology of Politics Politeia 2013

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