Search International and National Patent Collections

1. (WO2017148940) METHOD AND DEVICE FOR MEASURING THERMO-PHYSICAL PROPERTIES OF A MEDIUM

Pub. No.:    WO/2017/148940    International Application No.:    PCT/EP2017/054634
Publication Date: Sat Sep 09 01:59:59 CEST 2017 International Filing Date: Wed Mar 01 00:59:59 CET 2017
IPC: G01N 27/18
Applicants: UNIVERSITE DE REIMS CHAMPAGNE-ARDENNE
Inventors: HENRY, Jean-François
CHIRTOC, Mihai
CARON, Didier
HORNY, Nicolas
Title: METHOD AND DEVICE FOR MEASURING THERMO-PHYSICAL PROPERTIES OF A MEDIUM
Abstract:
Method for measuring thermo-physical properties of a medium in which are placed a measurement probe (2) and a compensation probe (3), a current (Im) being passed by the measurement probe (2) and a current (Ic)of the same frequency as and of amplitude proportional to that of the current (Im) being passed by the measurement probe (2) flowing through the compensation probe (3), in which process a signal containing a harmonic component useful for the measurement of the thermo-physical properties of the medium is generated from differential amplification of the voltages across the terminals of the compensation probe (3) and of the measurement probe (2), with a gain (G) chosen to decrease the amplitude of the first harmonic component within the resulting signal.