Development of a Temperature Controller for a Vuilleumier (VM) Cycle Power Cylinder
Final rept. 1 Sep 1974-1 Oct 1975
LITTLE (ARTHUR D) INC CAMBRIDGE MA
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Development of a temperature controller for the hot end of a Vuilleumier VM cryogenic cooler system is presented. The objectives of a low- cost, moderate reliability, environmentally tested controller are met in the design presented. Fundamental design factors include use of an onoff controller operating from the 28-volt aircraft bus, use of a platinum resistance temperature sensor, packaging within 25 cubic inches, use of class P components, and an estimated mean-time-between-failure of more than 8000 hours.
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