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A Temperature Sensor using a Silicon-on-Insulator (SOI) Timer for Very Wide Temperature MeasurementA temperature sensor based on a commercial-off-the-shelf (COTS) Silicon-on-Insulator (SOI) Timer was designed for extreme temperature applications. The sensor can operate under a wide temperature range from hot jet engine compartments to cryogenic space exploration missions. For example, in Jet Engine Distributed Control Architecture, the sensor must be able to operate at temperatures exceeding 150 C. For space missions, extremely low cryogenic temperatures need to be measured. The output of the sensor, which consisted of a stream of digitized pulses whose period was proportional to the sensed temperature, can be interfaced with a controller or a computer. The data acquisition system would then give a direct readout of the temperature through the use of a look-up table, a built-in algorithm, or a mathematical model. Because of the wide range of temperature measurement and because the sensor is made of carefully selected COTS parts, this work is directly applicable to the NASA Fundamental Aeronautics/Subsonic Fixed Wing Program--Jet Engine Distributed Engine Control Task and to the NASA Electronic Parts and Packaging (NEPP) Program. In the past, a temperature sensor was designed and built using an SOI operational amplifier, and a report was issued. This work used an SOI 555 timer as its core and is completely new work.
Document ID
20080022414
Document Type
Technical Memorandum (TM)
Authors
Patterson, Richard L. (NASA Glenn Research Center Cleveland, OH, United States)
Hammoud, Ahmad (ASRC Aerospace Corp. Cleveland, OH, United States)
Elbuluk, Malik (Akron Univ. Akron, OH, United States)
Culley, Dennis E. (NASA Glenn Research Center Cleveland, OH, United States)
Date Acquired
August 24, 2013
Publication Date
May 1, 2008
Subject Category
Electronics and Electrical Engineering
Report/Patent Number
E-16401
NASA/TM--2008-215159
Funding Number(s)
WBS: WBS 939904.01.03.02.01
Distribution Limits
Public
Copyright
Public Use Permitted.

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