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A ground test measurement system for the shuttle entry air data systemThe Ground Test Measurement System (GTMS) for determining vacuum decay leak rate within the orifice tubing assembly of SEADS is described. The system can also monitor the absolute pressure in the tubing assembly under certain conditions. The GTMS determines leak rate by measuring vacuum-pressure decay which can be converted into leakage flow rate. Results of performance testing and operation of the GTMS are given.
Document ID
19840003125
Acquisition Source
Legacy CDMS
Document Type
Technical Memorandum (TM)
Authors
Schutte, P. C. (NASA Langley Research Center Hampton, VA, United States)
Date Acquired
September 4, 2013
Publication Date
October 1, 1983
Subject Category
Ground Support Systems And Facilities (Space)
Report/Patent Number
NASA-TM-85707
NAS 1.15:85707
Report Number: NASA-TM-85707
Report Number: NAS 1.15:85707
Accession Number
84N11193
Funding Number(s)
PROJECT: RTOP 506-63-32-01
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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