Research on Fuzzy-PID Temperature Control System for Double Helix Resistor

Abstract:

Double Helix Resistor (DHR) can be used to establish AC resistance standard. Because the short-term stability of the DHR is very important during the process of quantity value dissemination, the DHR should be kept in a temperature-controlled environment. This paper presents a Fuzzy-PID temperature control method based on MSP430F149, the overshoot and adjustment time of the temperature control system can be reduced by using the Fuzzy control rules to adjust PID parameters. A special resistance box is designed to place DHR and decrease the exterior EMI effectively. At last, Fluke 8508A is used to measure the resistance of DHR. The measurement results show that the short-time relative stability of DHR is enhanced to 3×10^-7 after applying the presented temperature control system.

• Periodical: Applied Mechanics and Materials (Volumes 738-739)
• Pages: 1022-1025
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.738-739.1022
• Online since: March 2015
• Authors: Yun Jing Wang*, Xian Ying Dong, Zheng Wei Qu
• Keywords: Double Helix Resistor (DHR), Fuzzy PID, Temperature Control

References

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