公开(公告)号：EP2633275B1

公开(公告)日：2015-12-16

申请号：EP11773378.2

申请日：2011-10-14

申请人： Kamstrup A/S

发明人： SØRENSEN, Jens Lykke ,  HONORÉ, Janus

IPC分类号： G01F1/66

CPC分类号： G01F1/667

公开(公告)号：EP2633275A2

公开(公告)日：2013-09-04

申请号：EP11773378.2

申请日：2011-10-14

申请人： Kamstrup A/S

发明人： SØRENSEN, Jens Lykke ,  HONORÉ, Janus

IPC分类号： G01F1/66

CPC分类号： G01F1/667

摘要： The present invention discloses an ultrasonic flow meter comprising a generator circuit and a receiver circuit electrically separated from the generator circuit. The flow meter further comprises transducer switching means for controlled connection of ultrasonic transducers to either the generator circuit or to the receiver circuit. The output impedance of the generator circuit and the input impedance of the receiver circuit are controlled to be substantially zero.