Accession Number : ADB007816


Title :   Development of a Temperature Controller for a Vuilleumier (VM) Cycle Power Cylinder


Descriptive Note : Final rept. 1 Sep 1974-1 Oct 1975


Corporate Author : LITTLE (ARTHUR D) INC CAMBRIDGE MA


Personal Author(s) : Spencer, Richard H


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/b007816.pdf


Report Date : Oct 1975


Pagination or Media Count : 190


Abstract : 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 on/off 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.


Descriptors :   *CRYOGENICS , *REFRIGERATION SYSTEMS , AIRBORNE , AIRCRAFT , AVIONICS , COOLING , DETECTORS , HIGH TEMPERATURE , MINIATURIZATION , RELIABILITY , TEMPERATURE CONTROL


Subject Categories : Aircraft
      Air Condition, Heating, Lighting & Ventilating


Distribution Statement : APPROVED FOR PUBLIC RELEASE