公开(公告)号：US20210396559A1

公开(公告)日：2021-12-23

申请号：US17297689

申请日：2019-10-18

申请人： AENITIS TECHNOLOGIES ,  INSERM (INSTITUT NATIONAL DE LA SANTÉ ET DE LA RECHERCHE MÉDICALE) ,  CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE ,  ÉCOLE SUPÉRIEURE DE PHYSIQUE ET DE CHIMIE INDUSTRIELLES DE LA VILLE DE PARIS

发明人： Jean PROVOST ,  Jérémie GACHELIN ,  Baptiste PIALOT ,  Olivier COUTURE ,  Emmanuel VINCENT

IPC分类号： G01F1/66 ,  G01N15/06

摘要： A method for determining a flow rate and/or a concentration of particles of a fluid flowing in a chamber, which includes the steps of: producing an ultrasound beam of a given frequency with a first transducer such that all fluid components traveling through an intersection region between the ultrasound beam and the chamber are insonated by the first transducer; receiving Doppler-shifted ultrasound signals generated by the fluid components in the insonated region of the chamber with a second transducer; acquiring the ultrasound signals received by the second transducer during an acquisition time; obtaining a Doppler Power Spectrum of the acquired ultrasound signals; and determining the flow rate and/or the concentration of particles of the fluid by adjustment between, on the one hand, the obtained Doppler Power Spectrum and, on the other hand, a model of the Doppler Power Spectrum.