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Environmental control system transducer development studyA development test program of transducers for aerospace projects is described. Stability and performance of existing transducers, and improvements compatible with shuttle ECS requirements are investigated. These requirements incorporate design and development features into the transducers, and include the following: (1) improvement of overall transducer ruggedness and reliability; (2) common transducers for all ECS fluids that will be unaffected by long quiescent periods in the space environment, that will require no maintenance or refurbishing for at least 100 launches; and (3) appropriate self-check features that simplify checkout and maintenance. Models of three different transducers, a three-way valve for pressure transducers from closed liquid loops, surface-type platinum-wire resistance temperature sensors, and a nuclenics gaging system are evaluated. Tests and development improvements are described.
Document ID
19750002337
Acquisition Source
Legacy CDMS
Document Type
Contractor Report (CR)
Authors
Brudnicki, M. J. (AiResearch Mfg. Co. Los Angeles, CA, United States)
Date Acquired
September 3, 2013
Publication Date
July 19, 1974
Subject Category
Instrumentation And Photography
Report/Patent Number
NASA-CR-140312
AIRESEARCH-74-10325
Accession Number
75N10409
Funding Number(s)
CONTRACT_GRANT: NAS9-13446
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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