发明公开
EP2457067A1 MESSWANDLER VOM VIBRATIONSTYP SOWIE MESSGERÄT MIT EINEM SOLCHEN MESSWANDLER
审中-公开
MESSWANDLER从振动式和测量设备与此类MESSWANDLER
- 专利标题： MESSWANDLER VOM VIBRATIONSTYP SOWIE MESSGERÄT MIT EINEM SOLCHEN MESSWANDLER
- 专利标题（英）： Vibratory transducer and measuring device comprising such a transducer
- 专利标题（中）： MESSWANDLER从振动式和测量设备与此类MESSWANDLER
-
申请号： EP10726082.0申请日： 2010-06-22
-
公开(公告)号： EP2457067A1公开(公告)日： 2012-05-30
- 发明人: SCHÜTZE, Christian , HUBER, Christof , KUMAR, Vivek
- 申请人： Endress+Hauser Flowtec AG
- 申请人地址： Kägenstrasse 7 4153 Reinach CH
- 专利权人： Endress+Hauser Flowtec AG
- 当前专利权人： Endress+Hauser Flowtec AG
- 当前专利权人地址： Kägenstrasse 7 4153 Reinach CH
- 代理机构： Andres, Angelika Maria
- 优先权： DE102009028007 20090724
- 国际公布： WO2011009684 20110127
- 主分类号： G01F1/84
- IPC分类号： G01F1/84
摘要：
The invention relates to a transducer, in particular also for the use in a Coriolis mass-flow measuring device, comprising at least one measuring tube (10), which is at least temporarily vibrating during operation, for guiding flowing medium, and a sensor array (50) serving to detect vibrations of the measuring tube (10). The measuring tube extends between a first measuring tube end on the inlet side and a second measuring tube end on the outlet side, having a vibration length (L
10 ) and performing vibrations about a pivoting axis that is parallel or coincident to an virtual connecting axis which imaginarily connects the two ends of the measuring tube, for example in a bending vibration mode. The sensor array generates a first primary transducer signal representing vibrations of the measuring tube (10) by means of a first vibration sensor (51) disposed on the measuring tube (10), and generates a second primary transducer signal representing vibrations of the measuring tube (10) by means of a second vibration sensor (52) disposed on the measuring tube (10) at a distance from the first vibration sensor (51), wherein the length of an area extending between the first and second vibration sensor of the first measuring tube (10) defines a measuring length (L
50 ) of the transducer. In a transducer according to the invention, the vibration sensors of the sensor array are placed in the transducer in such a way that a sensitivity (S
IST ) of the transducer, with respect to a theoretical sensitivity at a measuring length (L
10 = L
50 ) that maximally corresponds to the vibration length, as well as a signal amplitude (A
IST ) of the primary signals, effectively obtained during operation and with respect to a theoretically maximal possible signal amplitude (A
MAX ) at the location of a maximal vibration amplitude, meet the condition (I).
10 ) and performing vibrations about a pivoting axis that is parallel or coincident to an virtual connecting axis which imaginarily connects the two ends of the measuring tube, for example in a bending vibration mode. The sensor array generates a first primary transducer signal representing vibrations of the measuring tube (10) by means of a first vibration sensor (51) disposed on the measuring tube (10), and generates a second primary transducer signal representing vibrations of the measuring tube (10) by means of a second vibration sensor (52) disposed on the measuring tube (10) at a distance from the first vibration sensor (51), wherein the length of an area extending between the first and second vibration sensor of the first measuring tube (10) defines a measuring length (L
50 ) of the transducer. In a transducer according to the invention, the vibration sensors of the sensor array are placed in the transducer in such a way that a sensitivity (S
IST ) of the transducer, with respect to a theoretical sensitivity at a measuring length (L
10 = L
50 ) that maximally corresponds to the vibration length, as well as a signal amplitude (A
IST ) of the primary signals, effectively obtained during operation and with respect to a theoretically maximal possible signal amplitude (A
MAX ) at the location of a maximal vibration amplitude, meet the condition (I).
信息查询
