A compact and rugged system designed to perform four-wire determination of the resistance of germanium resistance thermometers (GRT) near 1 K to one part in 65000 in 1 s using 20-nW excitation is described. Constraints unique to cryogenic aerospace systems are addressed. A microcomputer-controlled, hybrid analog/digital design is presented. Test results are presented, and future developments are discussed
High precision, rapid readout of cryogenic temperature sensors in the Space Shuttle environment
Hochgenaue Schnellablesung von Tiefsttemperatursensoren beim Space Shuttle
1990
6 Seiten, 9 Quellen
Aufsatz (Zeitschrift)
Englisch
RECHNERUNTERSTUETZTE INSTRUMENTIERUNG , ELEMENTHALBLEITER , WIDERSTANDSTHERMOMETER , RAUMFAHRZEUG , INSTRUMENTIERUNG , RECHNERUNTERSTUETZUNG , MESSAUFNEHMER , TIEFTEMPERATURMESSTECHNIK , KLEINSTRECHNER , REGELUNG , TIEFTEMPERATURTECHNIK , GERMANIUM , ELEKTRISCHE TASTVORRICHTUNG , MIKROCOMPUTERANWENDUNG , RAUMFAEHRE
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