Real time mass flow computer for Arc Jet Wind TunnelExperiments at the Arc Jet Tunnel at Ames Research Center have typical run times of 5-10 sec during which the test model is subjected to an environment simulating reentry into Jupiter. Previous real-time determination of mass flow required off-line manual computations from taped or strip chart data. The present paper describes a computer which provides personnel with real-time computations of mass flow. Using an 8-bit microprocessor and standard TTL interface circuitry, the unit interrogates temperature and pressure instruments with other parameters to compute mass flow.
Document ID
19790033578
Acquisition Source
Legacy CDMS
Document Type
Conference Proceedings
Authors
Vidal, J. (NASA Ames Research Center Moffett Field, Calif., United States)
Date Acquired
August 9, 2013
Publication Date
January 1, 1978
Subject Category
Computer Operations And Hardware
Meeting Information
Meeting: In: International Instrumentation Symposium