A consistency method of discharge detection results at solar-blind ultraviolet based on a radiation transmission model

IF 1.4 4区工程技术 Q3 ENGINEERING, ELECTRICAL & ELECTRONIC

Iet Science Measurement & Technology Pub Date : 2022-03-01 DOI:10.1049/smt2.12100

Yunpeng Liu, Yonglin Li, Jianghai Geng, Muhan Cui, Shilong Huang

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Abstract

Solar-blind ultraviolet (UV) discharge detection based on UV signals in the solar-blind band from 240 to 280 nm is an effective non-contact discharge detection method for electrical equipment, but there is still a problem that the detection results of different types of UV imagers are not comparable. To this end, by using standard light source and MODTRAN model, the relationship between the facular area and the radiant flux received by UV imagers was investigated by establishing a radiation transmission model for UV detection under different environmental conditions. Through analysis, it was found that the influence of humidity on the transmittance of the solar-blind band in atmosphere can be neglected, and the transmittance is slightly affected by atmospheric pressure, temperature, and detection distance under conditions suitable for UV detection. Moreover, a consistency formula for UV detection results was proposed, thus forming a consistency method for detection results suitable for various types of UV imager. Finally, the feasibility of the consistency method was verified by UV discharge detection tests with a rod-plate model and the absolute irradiance at discharge points of the rod-plate model measured by a grating spectrometer. The consistency method is conducive to the promotion of UV discharge detection technology.

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基于辐射传输模型的日盲紫外线放电检测结果一致性方法

基于日盲波段240 ~ 280 nm紫外信号的日盲紫外(UV)放电检测是一种有效的电气设备非接触放电检测方法，但不同类型紫外成像仪的检测结果不具有可比性。为此，利用标准光源和MODTRAN模型，通过建立不同环境条件下紫外线检测的辐射透射模型，研究了光斑面积与紫外线成像仪接收到的辐射通量之间的关系。通过分析发现，在适合紫外探测的条件下，大气湿度对日盲带透射率的影响可以忽略不计，大气压力、温度和探测距离对日盲带透射率的影响较小。提出了紫外检测结果的一致性公式，形成了适用于各类紫外成像仪检测结果的一致性方法。最后，通过棒板模型紫外放电检测试验和光栅光谱仪测量棒板模型放电点的绝对辐照度，验证了一致性方法的可行性。一致性法有利于紫外光放电检测技术的推广。

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来源期刊

Iet Science Measurement & Technology 工程技术-工程：电子与电气

CiteScore

4.30

自引率

7.10%

发文量

审稿时长

7.5 months

期刊介绍： IET Science, Measurement & Technology publishes papers in science, engineering and technology underpinning electronic and electrical engineering, nanotechnology and medical instrumentation.The emphasis of the journal is on theory, simulation methodologies and measurement techniques. The major themes of the journal are: - electromagnetism including electromagnetic theory, computational electromagnetics and EMC - properties and applications of dielectric, magnetic, magneto-optic, piezoelectric materials down to the nanometre scale - measurement and instrumentation including sensors, actuators, medical instrumentation, fundamentals of measurement including measurement standards, uncertainty, dissemination and calibration Applications are welcome for illustrative purposes but the novelty and originality should focus on the proposed new methods.