MICRO-THERMAL CONDUCTIVITY DETECTOR, METHOD TO FABRICATE SUCH AND CHROMATOGRAPHY SYSTEM USING SUCH

MICRO-THERMAL CONDUCTIVITY DETECTOR, METHOD TO FABRICATE SUCH AND CHROMATOGRAPHY SYSTEM USING SUCH

A heat flux sensor, a micro-scale gas chromatograph comprising the heat flux sensor, and method for measuring the thermal conductivity of a fluid using such are provided. The heat flux sensor comprises a chamber, a heating element suspended in the chamber, at least two current contacts configured to...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: CHEN, HUA, BOURLON, BERTRAND, KAANTA, BRADLEY, C, DONZIER, ERIC, PAUL, STEINECKER, WILLIAM, H, ZHANG, XIN, LAMBERTUS, GORDON, R, ZHDANEEV, OLEG
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES
MEASURING
PHYSICS
TESTING
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Beschreibung
Zusammenfassung:A heat flux sensor, a micro-scale gas chromatograph comprising the heat flux sensor, and method for measuring the thermal conductivity of a fluid using such are provided. The heat flux sensor comprises a chamber, a heating element suspended in the chamber, at least two current contacts configured to exchange a current with the heating element, and at least two measurement contacts configured to measure a voltage change along the heating element indicative of the thermal conductivity of the fluid.