Calculation and Experimental Validation of 3-D Parallel Plate Sensor for Transient Electric Field Measurement

2007 ◽  
Author(s):  
Xu Yuanzhe ◽  
Gao Cheng ◽  
Li Yanxin ◽  
Chang Yunfen ◽  
Zhou Bihua
Keyword(s):  
Electric Field ◽  
Field Measurement ◽  
Parallel Plate ◽  
Experimental Validation ◽  
Electric Field Measurement ◽  
Transient Electric Field

The transient electric field measurement system for EAST device

2016 ◽  
Vol 112 ◽  
pp. 856-859 ◽  
Author(s):  
Y. Wang ◽  
Z.S. Ji ◽  
C.M. Zhu ◽  
Z.C. Zhang ◽  
T.F. Ma ◽  
...  
Keyword(s):  
Electric Field ◽  
Measurement System ◽  
Field Measurement ◽  
Electric Field Measurement ◽  
Transient Electric Field

scholarly journals Research on the Three-Dimensional Power Frequency Electric Field Measurement System

2021 ◽  
Vol 2021 ◽  
pp. 1-15
Author(s):  
Chunguang Suo ◽  
Ran Wei ◽  
Wenbin Zhang ◽  
Yincheng Li
Keyword(s):  
Electric Field ◽  
Electric Power ◽  
Measurement System ◽  
Field Measurement ◽  
Parallel Plate ◽  
Three Dimensional ◽  
Electric Field Measurement ◽  
Power Frequency ◽  
Frequency Electric Field ◽  
Sensor Probe

It is of great significance to accurately provide electric field information for electric power operators and electric power inspection equipment to ensure the safety of live working robots and electric power workers. In this paper, the principle of parallel plate charge induction is used to detect electric field signals and the influence of the inherent capacitance of the parallel plate on the back-end circuit is considered. An equipotential ring is used as the structure of the sensing unit to eliminate the uncertainty generated by the edge electric field. The parameters of the sensor probe are determined by the principle of differential-integration, and its structure is analyzed and designed. The consistency of the designed sensor probe was analyzed, and the results show that the consistency of the sensor is better. We have measured the sensitivity coefficients of the six probes, and the average absolute deviation reached 0.031556. The fits were all above 0.9995. In addition, a three-dimensional power frequency electric field measurement system that is easy to manufacture is designed using the hexahedral structure, which solves the problem of inaccurate electric field measurement caused by the parallel plate probe and the field source being not perpendicular, and the combined field strength formula of nonuniform electric field was obtained. In the laboratory environment, the three-dimensional power frequency electric field measurement system produced in this paper is compared with the electric field simulated by an electric field simulation tool. The test results show that the deviation between the measurement system and simulation is within ±0.55%, the measurement range is 1 kV/m–200 kV/m, the resolution is ≥1 V/m, and the maximum electric field can be measured at 200 kV/m. The nonlinear error is 2.15%, and the sensitivity coefficient is 19.10   mV / kV · m − 1 , which meets the measurement requirements of the power frequency electric field and can be applied to the actual power frequency electric field measurement.

Atomic 2D electric field imaging of a Yagi–Uda antenna near-field using a portable Rydberg-atom probe and measurement instrument

2020 ◽  
Vol 9 (5) ◽  
pp. 305-312
Author(s):  
Ryan Cardman ◽  
Luís F. Gonçalves ◽  
Rachel E. Sapiro ◽  
Georg Raithel ◽  
David A. Anderson
Keyword(s):  
Electric Field ◽  
Electric Fields ◽  
Field Measurement ◽  
Near Field ◽  
Measurement Instrument ◽  
Rydberg Atom ◽  
Field Measurements ◽  
Atom Probe ◽  
Electric Field Measurement ◽  
Measurement Uncertainties

AbstractWe present electric field measurements and imaging of a Yagi–Uda antenna near-field using a Rydberg atom–based radio frequency electric field measurement instrument. The instrument uses electromagnetically induced transparency with Rydberg states of cesium atoms in a room-temperature vapor and off-resonant RF-field–induced Rydberg-level shifts for optical SI-traceable measurements of RF electric fields over a wide amplitude and frequency range. The electric field along the antenna boresight is measured using the atomic probe at a spatial resolution of ${\lambda }_{RF}/2$ with electric field measurement uncertainties below 5.5%, an improvement to RF measurement uncertainties provided by existing antenna standards.

The Design and Implementation of Ship Electric Field Measurement System Based on MSP430

2012 ◽  
Vol 622-623 ◽  
pp. 1378-1383
Author(s):  
Peng Han ◽  
Yang Li
Keyword(s):  
Electric Field ◽  
Measurement System ◽  
Field Measurement ◽  
High Accuracy ◽  
Low Power Consumption ◽  
Electric Field Measurement ◽  
Low Snr ◽  
Design And Implementation ◽  
Key Technologies ◽  
Software And Hardware

The ship electric field has become a new physical field which is widely concerned at home and abroad in recent years. For the research of ship electric field, one of the most effective methods is to measure it underwater. According to the analysis of ship electric field signal’s characteristics, the ship electric field measurement system based on MSP430F149 was designed and the key technologies of software and hardware were also presented in this paper. The results of experiment demonstrated that the system could effectively measure the ship electric field signal in a low SNR. Meanwhile, it has the advantages of low power consumption, high accuracy and credible.

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