A Potential Free Spherical Sensor for the Measurement of Transient Electric Fields

Feser,; Pfaff,

doi:10.1109/mper.1984.5526289

Cited by 6 publications

(7 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The sensor probe consists of two conductive hemispheres. The sphere probe has the advantages of distortion-free measurement, absence of point discharge and large detection range (Feser and Pfaff, 1984). When an alternate electric field acts on the probe, the free charge carriers inside the conductor redistribute.…”

Section: Sensor Design and Analysismentioning

confidence: 99%

Design of an electro-optical sensor with high sensitivity for AC electric field measurement

Peng

Bian

Jia

et al. 2022

View full text Add to dashboard Cite

Purpose This study aims to address the issue of high-precision measurement of AC electric field. An electro-optical sensor with high sensitivity is proposed for this purpose. Design/methodology/approach The proposed sensor combines electromagnetic induction and fiber Bragg grating (FBG) sensing techniques. It is composed of a sensing probe, a piece or stack of piezoelectric ceramics (PZT) and an FBG. A signal processing circuit is designed to rectify and amplify the induced voltage. The processed signal is applied to the PZT and the deformation of PZT is detected by FBG. Theoretical calculation and simulation are conducted to verify the working principle of the probe. The sensor prototype is fabricated and its performance is tested. Findings The results of this study show that the sensor has good linearity and repeatability. The sensor sensitivity is 0.061 pm/Vm−1 in the range from 250 to 17,500 V/m, enabling a measurement resolution of electric field strength of 16.3 V/m. The PZT stack is used to enhance the sensor sensitivity and the resolution can be improved up to 3.15 V/m. Originality/value A flexure hinge lever mechanism is used to amplify the deformation of PZT for further enhancement of sensitivity. The results show that the proposed sensor has high sensitivity and can be used for the accurate measurement of an electric field. The proposed sensor could have potential use for electric field measurement in the power industry.

show abstract

Section: Sensor Design and Analysismentioning

confidence: 99%

Design of an electro-optical sensor with high sensitivity for AC electric field measurement

Peng

Bian

Jia

et al. 2022

View full text Add to dashboard Cite

show abstract

“…However, as some independent metal components, such as an integrator and a balancer, are required, and the electrical cable is used for the signal transmission, the EM interference cannot be ignored, especially the coupled interference. The active electro-optic (EO) modulation type sensor has been developed, and optical fiber is used for signal transmission to reduce EM interference [ 9 , 10 ]. Generally, the active EO modulation type sensor receives an electric field signal through an antenna.…”

Section: Introductionmentioning

confidence: 99%

Design and Analysis of Broadband LiNbO3 Optical Waveguide Electric Field Sensor with Tapered Antenna

Zhang

2021

Sensors

View full text Add to dashboard Cite

The three-dimensional (3D) simulation model of a lithium niobate (LiNbO3, LN) optical waveguide (OWG) electric field sensor has been established by using the full-wave electromagnetic simulation software. The influences of the LN substrate and the packaging material on the resonance frequency of the integrated OWG electric field sensor have been simulated and analyzed. The simulation results show that the thickness of the LN substrate has a great influence on the resonant frequency of the sensor (≈33.4%). A sensor with a substrate thickness of 1 mm has been designed, fabricated, and experimentally investigated. Experimental results indicate that the measured resonance frequency is 7.5 GHz, which nearly coincides with the simulation results. Moreover, the sensor can be used for the measurement of the nanosecond electromagnetic impulse (NEMP) in the time domain from 1.29 kV/m to 100.97 kV/m.

show abstract

“…Stratakis et al analyzed the uncertainty in electromagnetic field strength measurements, but the researchers did not discuss the application of numerical integration methods to voltage measurement [ 23 , 24 , 25 ]. Some researchers [ 26 , 27 , 28 ] only studied the respective measurement performance of sensors but did not precisely determine and express the uncertainty of electric field measurement. Yan et al proposed an uncertainty assessment method for voltage measurement, yet the established uncertainty was not precise due to the lack of an analysis of error sources with the voltage sensor [ 29 ].…”

Section: Introductionmentioning

confidence: 99%

Evaluation of Electric Field Integral Voltage Measurement Method of Transmission Line Based on Error Transmission and Uncertainty Analysis

Fan

Guo

et al. 2021

Sensors

View full text Add to dashboard Cite

Electric field numerical integration algorithms can realize the non-contact measurement of transmission line voltage effectively. Although there are many electric field numerical integration algorithms, lack of a comprehensive comparison of accuracy and stability among various algorithms results in difficulties in evaluating the measurement results of various algorithms. Therefore, this paper presents the G-L (Gauss–Legendre) algorithm, the I-G-L (improved Gauss–Legendre) algorithm, and the I-G-C (improved Gauss–Chebyshev) algorithm and proposes a unified error propagation model of the derived algorithms to assess the accuracy of each integration method by considering multiple error sources. Moreover, evaluation criteria for the uncertainty of transmission line voltage measurement are proposed to analyze the stability and reliability of these algorithms. A simulation model and experiment platform were then constructed to conduct error propagation and uncertainty analyses. The results show that the G-L algorithm had the highest accuracy and stability in the scheme with five integral nodes, for which the simulation error was 0.603% and the relative uncertainty was 2.130%. The I-G-L algorithm was more applicable due to the smaller number of integral nodes required, yet the algorithm was less stable in achieving the same accuracy as the G-L algorithm. In addition, the I-G-C algorithm was relatively less accurate and stable in voltage measurement.

show abstract

A Potential Free Spherical Sensor for the Measurement of Transient Electric Fields

Cited by 6 publications

References 0 publications

Design of an electro-optical sensor with high sensitivity for AC electric field measurement

Design of an electro-optical sensor with high sensitivity for AC electric field measurement

Design and Analysis of Broadband LiNbO3 Optical Waveguide Electric Field Sensor with Tapered Antenna

Evaluation of Electric Field Integral Voltage Measurement Method of Transmission Line Based on Error Transmission and Uncertainty Analysis

Contact Info

Product

Resources

About