Research on frequency response analysis and bandwidth test method of TMR current sensor

Wenfeng Tian; Hui Deng; Feng Huang

doi:10.1117/12.3009048

27 October 2023 Research on frequency response analysis and bandwidth test method of TMR current sensor

Wenfeng Tian, Hui Deng, Feng Huang

Proceedings Volume 12922, Third International Conference on Electronics, Electrical and Information Engineering (ICEEIE 2023); 1292209 (2023) https://doi.org/10.1117/12.3009048
Event: The Third International Conference on Electronics, Electrical and Information Engineering (ICEEIE 2023), 2023, Xiamen, China

Abstract

With the development of power grid digitalization, miniaturized, highly sensitive, low-power sensors are required to provide high-precision sensing and measurement capabilities of current signals in a wide band under complex working conditions. This paper analyzes the sensing principle of TMR magnetic sensor and the frequency band response characteristics of TMR current sensor, builds a TMR sensor bandwidth test system, carries out the bandwidth and parameter test analysis of four TMR sensors with different internal resistance, verifies the frequency response characteristics of current sensors with a bandwidth of up to 5MHz, and greatly expands the application range of TMR sensors.

(2023) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Wenfeng Tian, Hui Deng, and Feng Huang "Research on frequency response analysis and bandwidth test method of TMR current sensor", Proc. SPIE 12922, Third International Conference on Electronics, Electrical and Information Engineering (ICEEIE 2023), 1292209 (27 October 2023); https://doi.org/10.1117/12.3009048

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