发明名称 |
Improved pump pressure sensor. |
摘要 |
<p>A back pressure sensor for a positive displacement pump comprises at least one flexible beam (46) having a pivot end (20) and a drive connector end (15), and a pump actuator (12) mounted between the pivot end and the drive connector end. The pump actuator connects with a positive displacement member of a pump. At least one sensor beam (22, 24) is connected to the flexible beam at a mounting position (7) between the distal end and vibration damping end thereof. A first capacitor plate (32) is mounted on the flexible beam at a position adjacent to the pivot end thereof, and a second capacitor plate (34) is mounted adjacent the distal end of the sensor beam in a position facing the first capacitor plate at a distance which permits a capacitance coupling between the capacitor plates. A vibration damping mass (17, 19) is secured to the vibration damping end of the sensor beam for damping drive motion vibrations in the sensor beam.</p> |
申请公布号 |
EP0282324(A2) |
申请公布日期 |
1988.09.14 |
申请号 |
EP19880302126 |
申请日期 |
1988.03.11 |
申请人 |
CRITIKON, INC. |
发明人 |
BLOOM, RICHARD M.;DANBY, HAL C.;RITSON, CARL |
分类号 |
G01L9/12;A61M5/142;A61M5/168;F04B49/06 |
主分类号 |
G01L9/12 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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