基于场致二次谐波的脉冲沿面流注电场矢量同步测量方法

ZHENG Xinlei; ZHENG Haotian; HUANG Zongze; SUN Zihan; ZHAO Zheng; LI Jiangtao

doi:10.13336/j.1003-6520.hve.20241546

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基于场致二次谐波的脉冲沿面流注电场矢量同步测量方法

更新时间：2025-12-08

- 基于场致二次谐波的脉冲沿面流注电场矢量同步测量方法
- Vol. 51, Issue 10, Pages: 5295-5305(2025)
- 作者机构：
  
  西安交通大学电气工程学院,西安,710049
- 作者简介：
- 基金信息：
- DOI：10.13336/j.1003-6520.hve.20241546
  CLC：
- Published：2025
- 稿件说明：
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ZHENG Xinlei, ZHENG Haotian, HUANG Zongze, et al. 基于场致二次谐波的脉冲沿面流注电场矢量同步测量方法[J]. 2025, 51(10): 5295-5305.
DOI：

ZHENG Xinlei, ZHENG Haotian, HUANG Zongze, et al. 基于场致二次谐波的脉冲沿面流注电场矢量同步测量方法[J]. 2025, 51(10): 5295-5305. DOI： 10.13336/j.1003-6520.hve.20241546.

摘要

电场矢量诊断是研究沿面流注传播与演变机制的重要基础。基于场致二次谐波的电场测量方法具有高时空分辨率、非侵入式和适用范围广等优点。为满足沿面流注放电电场矢量测量需求，提出了基于场致二次谐波的电场矢量同步测量方法。首先，推导了考虑外施电场矢量和激光偏振方向的二次谐波光极化强度矢量表达式，分析了二次谐波信号2个分量的功率与外施电场矢量的理论关系，实验验证了理论的正确性；然后，基于该理论讨论了二次谐波信号的偏振特性，提出了电场矢量同步测量的优化方法；最后，基于场致二次谐波的电场矢量同步测量方法获得了脉冲沿面流注放电电场的时空演变规律，比较同步测量和单分量测量结果，验证了同步测量方法的准确性与适用性。该方法有望应用于沿面不稳定性放电中的电场矢量测量。

Abstract

Diagnostics of the electric field vector is crucial for the investigation of surface streamer discharges and their transition mechanisms. The electric-field-induced secondary harmonic method has the advantages of high spatial and temporal resolution

non-intrusiveness and a wide range of applications. In this paper

the method of simultaneous measurement of electric field vectors is proposed to satisfy the strong demand for the electric field diagnostics of surface streamer discharge. Firstly

the general expressions for the polarization and power of E-FISH signals are derived

assuming arbitrary probe beam polarization and external electric field direction. The theoretical relationships between the power of both components of E-FISH signals and the external electric field vector are analyzed. This theoretical prediction is validated by experimental results. Furthermore

the polarization properties of E-FISH signals are analyzed based on the expressions and the method of simultaneous measurement is proposed. Finally

based on the measurement method and platform

the spatial and temporal evolutions of surface streamer discharge are obtained. Comparison with the results measured separately shows the accuracy and applicability of this method. The method has the potential to be applied in implementation of the measuring electric field vectors in unstable streamer discharges along surfaces.

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