发明名称 |
Pump pressure sensor |
摘要 |
A back pressure sensor for a positive displacement pump comprises at least one flexible beam having a pivot end and a drive connector end, and a pump actuator 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 is connected to the flexible beam at a mounting position between the distal end and vibration damping end thereof. A first capacitor plate is mounted on the flexible beam at a position adjacent to the pivot end thereof, and a second capacitor plate 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 is secured to the vibration damping end of the sensor beam for damping drive motion vibrations in the sensor beam.
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申请公布号 |
US4784576(A) |
申请公布日期 |
1988.11.15 |
申请号 |
US19870025681 |
申请日期 |
1987.03.13 |
申请人 |
CRITIKON, INC. |
发明人 |
BLOOM, RICHARD M.;RITSON, CARL;DANBY, HAL C. |
分类号 |
G01L9/12;A61M5/142;A61M5/168;F04B49/06;(IPC1-7):F01B25/26;F01B31/12;F04B21/00 |
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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