Results 211 to 220 of about 625,400 (266)

Analysis of Measurement Error on Impulse Current System

2011 Asia-Pacific Power and Energy Engineering Conference, 2011
Measurement error which is caused by the position of reference ground point and strong electromagnetic interference is introduced in detail. Based on the results, reliable and effective methods for anti-interference, such as surge absorption circuit and floating measurement, were applied to measurement unit.
Wei Sun, Juan Yao
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The Error Due to the Peltier Effect in Direct-Current Measurements of Resistance

Metrologia, 1973
The recent development of ac bridges for precise resistance determinations has brought on the not altogether unexpected discovery of significant differences between dc and ac measurements. In this article, we discuss one such difference, observed in germanium resistance thermometers, and show that it can be unequivocally ascribed to the Peltier effect,
Kirby, C. G.M., Laubitz, M. J.
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Error Corrected Microwave Voltage and Current Periodic Waveform Measurements

18th European Microwave Conference, 1988, 1988
A system is described to measure the periodic time domain voltages and currents of a nonlinear microwave device. A vector error correction algorithm is used to take into account and correct the errors caused by imperfect microwave hardware. The system can also be used to yield frequency domain quantities such as the fundamental frequency reflection ...
Lehtinen, Kari, Porra, Veikko, Sipilä, Markku   +3 more
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Measurement Current Transformer Error Compensation by ANN Methodology

Journal of The Institution of Engineers (India): Series B, 2020
Measurement current transformers (MCTs) are an important component in the measurement of electric power. In this era of deregulation, every power distribution company strives for maximum revenue. It could be possible if the errors present in MCTs are reduced.
Makarand Sudhakar Ballal, Manish Ganesh Wath, Hiralal Murlidhar Suryawanshi   +2 more
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Errors due to measuring voltage on current-carrying electrodes in electric current computed tomography

IEEE Transactions on Biomedical Engineering, 1990
Electric current computed tomography is a process for determining the distribution of electrical conductivity inside a body based upon measurements of voltage or current made at the body's surface. Most such systems use different electrodes for the application of current and the measurement of voltage.
Kuo-Sheng Cheng, Steven J. Simske, David Isaacson, Jonathan C. Newell, David G. Gisser   +4 more
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Experiment and Analysis of Measurement Error of a Wide Range Current Transformer

2021 IEEE International Conference on Power Electronics, Computer Applications (ICPECA), 2021
The range of the load of many users is very large, the rated current of the current transformer for metering is set according to the full load current, and the actual current used may be much larger than the rated current set by the transformer or even more than 200%, which will cause the inaccurate metering of the electricity bill.
Bing Lu, Xiwen Chen, Jun Zhang, Xu Wang, Can Ding   +4 more
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Measurement Error in the Current Population Survey: A Nonparametric Look

Journal of Labor Economics, 1998
"This article utilizes an exact match file between the 1978 March [U.S.] Current Population Survey and administrative records from the Social Security Administration to analyze errors in the reporting of annual income using nonparametric methodology....
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Minimizing Errors of Ocean Currents Measured by Electromagnetic Backscatter

IEEE Transactions on Geoscience and Remote Sensing, 1985
The use of a single HF or microwave radar permits the radial component of the ocean surface current to be mapped for the radar look direction [1, 2]. The azimuthal component of the surface current can also be calculated by invoking the continuity equation for the surface current [3].
R. Raghavan, Robert Mcintosh, Calvin Swift   +2 more
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Systematic Errors in Alternating Current Hall Effect Measurements

Journal of Applied Physics, 1969
This article discusses in the form of a table the spurious signals which can arise in a Hall effect measuring apparatus using alternating current and either an ac or a dc magnetic field. It is pointed out which of these spurious signals can simulate a Hall effect.
H. L. McKinzie, D. S. Tannhauser
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Experimental study of current error of up to 50 hz current-measuring transformer

2017 International Conference on Industrial Engineering, Applications and Manufacturing (ICIEAM), 2017
When using a variable-frequency drive at low and extra-low frequencies, it is difficult to control the current value. Standard current transformers are often used. This paper analyzes the transformer performance at frequencies below the industrial one.
A. V. Bessolitsyn, A. V. Golgovskich, A. V. Novikov   +2 more
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