Precision Temperature Control System Based on PID Algorithm

Yong Lv; Chun Hui Niu; Yue Qiang Li; Qing Shan Chen; Xiao Ying Li; He Liu

doi:10.4028/www.scientific.net/AMM.389.483

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 389Precision Temperature Control System Based on PID...

Precision Temperature Control System Based on PID Algorithm

Abstract:

A precision temperature control system that uses ATmega128 as the main control microcomputer is built. The temperature is sensed by a Pt100 thermistor, and then converted into the voltage signal by a temperature transmitter to the microcomputer. Two kinds of digital PID (Proportional-Integral-Differential) algorithms are adopted to control the output power of the thermo-electric cooler (TEC) automatically. The test results of the improved temperature control system show that the set-up time of this system is about 340s and the temperature control accuracy is up to±0.1°C.

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Periodical:

Applied Mechanics and Materials (Volume 389)

Pages:

483-488

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.389.483

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Online since:

August 2013

Authors:

Yong Lv, Chun Hui Niu, Yue Qiang Li, Qing Shan Chen, Xiao Ying Li, He Liu

Keywords:

Proportional-Integral-Differential (PID), Temperature Control, Thermistor, Thermo-Electric Cooler (TEC)

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