发明授权
US6085574A Device for controlling a liquid flow in a tubular duct and particularly
in a peristaltic pump
失效
用于控制管状管道中特别是蠕动泵中的液体流动的装置
- 专利标题： Device for controlling a liquid flow in a tubular duct and particularly in a peristaltic pump
- 专利标题（中）： 用于控制管状管道中特别是蠕动泵中的液体流动的装置
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申请号： US875407申请日： 1997-07-03
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公开(公告)号： US6085574A公开(公告)日： 2000-07-11
- 发明人: Frederic Neftel , Bernard Bouvier
- 申请人： Frederic Neftel , Bernard Bouvier
- 申请人地址： CHX Lausanne
- 专利权人： Debiotech S.A.
- 当前专利权人： Debiotech S.A.
- 当前专利权人地址： CHX Lausanne
- 优先权： FRX9500053 19950105
- 主分类号： G01N29/00
- IPC分类号： G01N29/00 ; A61M5/00 ; A61M5/142 ; A61M5/36 ; G01N29/02 ; G01N29/032 ; G01N29/04
摘要：
A device for sensing gas bubbles in a liquid flowing through a duct, particularly the outlet duct of a peristaltic pump, including two piezoelectric components shaped and excited so that they vibrate axially. One of the components is a transmitter and the other is a receiver. One of the piezoelectric components is secured to a movable support, and its displacement is detected in order to detect excess pressure in the liquid flowing through the duct.
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