Precision temperature control of Stirling-cycle cryocoolers

Robert R. Clappier; Robert J. Kline-Schoder

doi:10.1117/12.178598

23 June 1994 Precision temperature control of Stirling-cycle cryocoolers

Robert R. Clappier, Robert J. Kline-Schoder

Proceedings Volume 2227, Cryogenic Optical Systems and Instruments VI; (1994) https://doi.org/10.1117/12.178598
Event: SPIE's International Symposium on Optical Engineering and Photonics in Aerospace Sensing, 1994, Orlando, FL, United States

Abstract

This paper describes the analysis, development, and laboratory testing of a closed loop control system that maintains temperature over a range of 50 to 80 K to +/- 0.01 K. The control loop uses position, velocity, and integrated error information to achieve excellent short-term and long-term temperature stability by modulating the length of the compressor stroke. The resulting control system is compatible with adaptive vibration cancellation techniques. The control algorithm is implemented on a personal computer using a 386 processor, but it is simple enough to run as one of many tasks on a less powerful microprocessor.

Citation Download Citation

Robert R. Clappier and Robert J. Kline-Schoder "Precision temperature control of Stirling-cycle cryocoolers", Proc. SPIE 2227, Cryogenic Optical Systems and Instruments VI, (23 June 1994); https://doi.org/10.1117/12.178598

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