2023
DOI: 10.3390/s23083851
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Self-Calibration Sensor for Contactless Voltage Measurement Based on Dynamic Capacitance

Abstract: Noncontact voltage measurement has the advantages of simple handling, high construction safety, and not being affected by line insulation. However, in practical measurement of noncontact voltage, sensor gain is affected by wire diameter, wire insulation material, and relative position deviation. At the same time, it is also subject to interference from interphase or peripheral coupling electric fields. This paper proposes a noncontact voltage measurement self-calibration method based on dynamic capacitance, wh… Show more

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Cited by 5 publications
(1 citation statement)
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“…Some scholars have already started to use the principles of space electric field and capacitance to carry out research related to voltage measurement. A commonly used voltage measurement method is the voltage measurement technology based on the principle of stray capacitance voltage division [ 17 , 18 , 19 ]. The voltage divider is formed according to the coupling stray capacitance between the induced electrode and the measured wire and the inherent capacitance of the designed sensor; the voltage measurement value of the measured wire can be obtained according to the ratio of capacitance mentioned above.…”
Section: Introductionmentioning
confidence: 99%
“…Some scholars have already started to use the principles of space electric field and capacitance to carry out research related to voltage measurement. A commonly used voltage measurement method is the voltage measurement technology based on the principle of stray capacitance voltage division [ 17 , 18 , 19 ]. The voltage divider is formed according to the coupling stray capacitance between the induced electrode and the measured wire and the inherent capacitance of the designed sensor; the voltage measurement value of the measured wire can be obtained according to the ratio of capacitance mentioned above.…”
Section: Introductionmentioning
confidence: 99%