25 October 2016 Analysis of DC control in double-inlet GM type pulse tube refrigerators for detectors
Author Affiliations +
Proceedings Volume 10157, Infrared Technology and Applications, and Robot Sensing and Advanced Control; 101570B (2016); doi: 10.1117/12.2244147
Event: International Symposium on Optoelectronic Technology and Application 2016, 2016, Beijing, China
Abstract
Pulse tube refrigerators have demonstrated many advantages with respect to temperature stability, vibration, reliability and lifetime among cryo-coolers for detectors. Double-inlet type pulse tube refrigerators are popular in GM type pulse tube refrigerators. The single double-inlet valve may introduce DC flow in refrigerator, which deteriorates the performance of pulse tube refrigerator. One new type of DC control mode is introduced in this paper. Two parallel-placed needle valves with opposite direction named double-valve configuration, instead of single double-inlet valve, are used in our experiment to reduce the DC flow. With two double-inlet operating, the lowest cold end temperature of 18.1K and a coolant of 1.2W@20K have been obtained. It has proved that this method is useful for controlling DC flow of the pulse tube refrigerators, which is very important to understand the characters of pulse tube refrigerators for detectors.
© (2016) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
B. Y. Du, "Analysis of DC control in double-inlet GM type pulse tube refrigerators for detectors", Proc. SPIE 10157, Infrared Technology and Applications, and Robot Sensing and Advanced Control, 101570B (25 October 2016); doi: 10.1117/12.2244147; https://doi.org/10.1117/12.2244147
PROCEEDINGS
6 PAGES


SHARE
KEYWORDS
Sensors

RELATED CONTENT

A distributed temperature-sensing system based on FBG
Proceedings of SPIE (March 05 2007)
Prediction of time to go of IR imaging GIF
Proceedings of SPIE (September 08 2011)
ILC perspectives
Proceedings of SPIE (October 11 2005)

Back to Top