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Related Concept Videos

Voltammetric Techniques: Pulse Voltammetry01:17

Voltammetric Techniques: Pulse Voltammetry

653
Differential-pulse voltammetry (DPV) is a type of voltammetry that involves applying a series of voltage pulses to an electrochemical cell while measuring the resulting current. In DPV, the differential pulse or small potential pulses are superimposed on a linear potential sweep. The magnitude of these pulses is typically small, often in the millivolt range. Each voltage pulse lasts a short duration, usually in the order of a few milliseconds, and is applied at regular intervals along the...
653

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Updated: Aug 22, 2025

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Research on a Non-Contact Multi-Electrode Voltage Sensor and Signal Processing Algorithm.

Wenbin Zhang1, Yonglong Yang1, Jingjing Zhao2

  • 1College of Mechanical and Electrical Engineering, Kunming University of Science and Technology, Kunming 650504, China.

Sensors (Basel, Switzerland)
|November 11, 2022
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Summary
This summary is machine-generated.

This study introduces a novel multi-electrode array non-contact voltage sensor. It significantly reduces measurement errors caused by position changes, offering a cost-effective and accurate alternative to traditional methods.

Keywords:
Kalman filteringPCB processelectrode arraynon-contact voltage measurementvoltage sensor

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Area of Science:

  • Electrical Engineering
  • Sensor Technology
  • Metrology

Background:

  • Traditional contact voltage measurement is difficult to install and maintain.
  • Existing non-contact sensors are bulky, expensive, and sensitive to positional changes.
  • There is a need for accurate and robust non-contact voltage measurement solutions.

Purpose of the Study:

  • To develop a cost-effective, non-contact voltage sensor with improved positional stability.
  • To design a multi-electrode array sensor using PCB manufacturing processes.
  • To create a signal processing algorithm for enhanced measurement accuracy.

Main Methods:

  • Designed a multi-electrode array structure for non-contact voltage sensing.
  • Utilized PCB manufacturing for sensor fabrication, reducing cost and complexity.
  • Developed a signal processing algorithm to mitigate positional errors.
  • Conducted experimental and simulation studies to validate performance.

Main Results:

  • The multi-electrode sensor exhibited a significantly lower relative error (0.38%) compared to traditional single-electrode sensors (17.62%) under positional offset.
  • Achieved a ratio error of less than ±1% at 50 Hz power frequency.
  • Demonstrated a phase difference of less than 4°.
  • Verified good accuracy and linearity of the developed sensor.

Conclusions:

  • The proposed multi-electrode array non-contact voltage sensor offers superior accuracy and stability.
  • PCB manufacturing enables cost-effective production and simplifies fabrication.
  • The sensor effectively addresses the limitations of existing non-contact voltage measurement technologies.