Design of impedance measurement control and calibration software for 128 channels

Yichen Du; Bowei Wang; Hongfu Guo

doi:10.1117/12.3033044

5 July 2024 Design of impedance measurement control and calibration software for 128 channels

Yichen Du, Bowei Wang, Hongfu Guo

Proceedings Volume 13184, Third International Conference on Electronic Information Engineering and Data Processing (EIEDP 2024); 131845P (2024) https://doi.org/10.1117/12.3033044
Event: 3rd International Conference on Electronic Information Engineering and Data Processing (EIEDP 2024), 2024, Kuala Lumpur, Malaysia

Abstract

Aiming at the problems of single impedance measurement channel, multi-channel control and error calibration processing, this research uses C language to design a multi-channel impedance measurement control and calibration software based on STM32 microcontroller. The measurement function of each channel is designed, and the 8-bit address line control method is used to realize the analog switch control function of 128 channels. By using the software segment fitting and calibration method, the function of single channel measurement error calibration is realized, and the software zero compensation method is used to solve the basic error caused by multi-channel measurement at the same time. The experimental results show that the test accuracy of the impedance range of 10Ω-100kΩ resistance is less than 3%

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

Citation Download Citation

Yichen Du, Bowei Wang, and Hongfu Guo "Design of impedance measurement control and calibration software for 128 channels", Proc. SPIE 13184, Third International Conference on Electronic Information Engineering and Data Processing (EIEDP 2024), 131845P (5 July 2024); https://doi.org/10.1117/12.3033044

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