NASA NTRS · 19840003125
A ground test measurement system for the shuttle entry air data system
Abstract
The 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.
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Schutte, P. C.. 1983-10-01. A ground test measurement system for the shuttle entry air data system. https://ntrs.nasa.gov/citations/19840003125
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