Terahertz detection of fillers in solid insulating materials

Wei Lu; Tenyi Zhang; Fuzeng Zhang; Xiaoguo Chen; Kai Zhou; Qiong Wang; Kai Liu; Tienan Cao

doi:10.1117/12.3050431

12 December 2024 Terahertz detection of fillers in solid insulating materials

Wei Lu, Tenyi Zhang, Fuzeng Zhang, Xiaoguo Chen, Kai Zhou, Qiong Wang, Kai Liu, Tienan Cao

Proceedings Volume 13419, Tenth International Conference on Energy Materials and Electrical Engineering (ICEMEE 2024); 134191F (2024) https://doi.org/10.1117/12.3050431
Event: Tenth International Conference on Energy Materials and Electrical Engineering (ICEMEE 2024), 2024, Lhasa, China

Abstract

Solid insulation materials undertake important insulation tasks in power insulation. For the analysis of fillers in solid insulation, there are few non-destructive testing methods currently used, and the accuracy is not high. The destructive testing accuracy of samples is high, such as thermogravimetric analysis, but the operation is complicated and the testing requirements are high, which cannot meet the rapid and non-destructive testing of silicone rubber. In this paper, silicone rubber commonly used in solid insulating materials is taken as the research object, and different samples are made by changing the filler content in rubber, and a terahertz transmission detection platform is built in the laboratory to detect the samples, and the terahertz time domain signal, refractive index and terahertz absorption rate of the samples are obtained. Finally, by analysing the terahertz absorption rate of the sample, the relationship between aluminum hydroxide content and terahertz absorption rate is obtained at the characteristic frequencies of 1.21thz and 1.33thz of silicone rubber. This method can detect the content of aluminum hydroxide filler in silicone rubber in a non-contact and non-destructive way.

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Wei Lu, Tenyi Zhang, Fuzeng Zhang, Xiaoguo Chen, Kai Zhou, Qiong Wang, Kai Liu, and Tienan Cao "Terahertz detection of fillers in solid insulating materials", Proc. SPIE 13419, Tenth International Conference on Energy Materials and Electrical Engineering (ICEMEE 2024), 134191F (12 December 2024); https://doi.org/10.1117/12.3050431

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