公开(公告)号：EP2115451B1

公开(公告)日：2013-09-11

申请号：EP08708197.2

申请日：2008-01-25

申请人： Electricité de France ,  Centre National de la Recherche Scientifique (CNRS) ,  Université Montpellier 2 Sciences et Techniques

发明人： BARON, Daniel ,  FERRANDIS, Jean-Yves ,  LEVEQUE, Gérard ,  LAUX, Didier ,  ROSENKRANTZ, Eric

IPC分类号： G01N29/036 ,  G01N29/28 ,  G21C17/10 ,  G01L11/06

CPC分类号： G01L9/0001 ,  G01L11/04 ,  G01N29/032 ,  G01N29/036 ,  G01N29/222 ,  G01N2291/021 ,  G01N2291/02854 ,  G01N2291/02872 ,  G01N2291/101 ,  G01N2291/102 ,  G01N2291/2634 ,  G21C17/017 ,  G21C17/102 ,  G21Y2002/204 ,  G21Y2002/304 ,  G21Y2004/30 ,  G21Y2004/40

公开(公告)号：EP2115451A1

公开(公告)日：2009-11-11

申请号：EP08708197.2

申请日：2008-01-25

申请人： Electricité de France ,  Centre National de la Recherche Scientifique (CNRS) ,  Universite Montpellier 2 Sciences Et Techniques

发明人： BARON, Daniel ,  FERRANDIS, Jean-Yves ,  LEVEQUE, Gérard ,  LAUX, Didier ,  ROSENKRANTZ, Eric

IPC分类号： G01N29/036 ,  G01N29/28 ,  G21C17/10 ,  G01L11/06

CPC分类号： G01L9/0001 ,  G01L11/04 ,  G01N29/032 ,  G01N29/036 ,  G01N29/222 ,  G01N2291/021 ,  G01N2291/02854 ,  G01N2291/02872 ,  G01N2291/101 ,  G01N2291/102 ,  G01N2291/2634 ,  G21C17/017 ,  G21C17/102 ,  G21Y2002/204 ,  G21Y2002/304 ,  G21Y2004/30 ,  G21Y2004/40

摘要： The invention relates to a method for measuring the pressure and/or molar mass of a gas in a housing, the measure being carried out via an acoustic sensor, said acoustic sensor at least one transducer (5), an electric system (8) connected to the transducer (5) and a coupling layer (6) for coupling the transducer (5) to the housing (1), said method comprising the following steps: generating using the transducer (5) an excitation acoustic signal that vibrates the housing (1) and the gas (2) in a wide frequency band; detecting with the transducer (5) a response acoustic signal characteristic of the vibrations of the housing and the gas; analysing the response electric signals from the transducer (5) using the system (8); and deriving, essentially based on the gas (2) resonance frequencies, the speed of the acoustic waves in the gas, the molar mass of the gas and the pressure thereof. The invention also relates to an assembly for implementing the method.