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Automated Cryocooler Monitor and Control System SoftwareThis software is used in an automated cryogenic control system developed to monitor and control the operation of small-scale cryocoolers. The system was designed to automate the cryogenically cooled low-noise amplifier system described in "Automated Cryocooler Monitor and Control System" (NPO-47246), NASA Tech Briefs, Vol. 35, No. 5 (May 2011), page 7a. The software contains algorithms necessary to convert non-linear output voltages from the cryogenic diode-type thermometers and vacuum pressure and helium pressure sensors, to temperature and pressure units. The control function algorithms use the monitor data to control the cooler power, vacuum solenoid, vacuum pump, and electrical warm-up heaters. The control algorithms are based on a rule-based system that activates the required device based on the operating mode. The external interface is Web-based. It acts as a Web server, providing pages for monitor, control, and configuration. No client software from the external user is required.
Document ID
20120000478
Acquisition Source
Jet Propulsion Laboratory
Document Type
Other - NASA Tech Brief
Authors
Britchcliffe, Michael J.
(California Inst. of Tech. Pasadena, CA, United States)
Conroy, Bruce L.
(California Inst. of Tech. Pasadena, CA, United States)
Anderson, Paul E.
(California Inst. of Tech. Pasadena, CA, United States)
Wilson, Ahmad
(California Inst. of Tech. Pasadena, CA, United States)
Date Acquired
August 25, 2013
Publication Date
September 1, 2011
Publication Information
Publication: NASA Tech Briefs, September 2011
Subject Category
Man/System Technology And Life Support
Report/Patent Number
NPO-47247
Distribution Limits
Public
Copyright
Public Use Permitted.
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