Pump pressure sensor

Details Pump pressure sensor Pump pressure sensor

1987-03-13

1988-11-15

Garrett, Robert E.

Pumps

With signal, indicator, or inspection means

91 1, 92 5R, 604 64, 604131, 604152, 604153, 128DIG13, 73753, F01B 2526, F01B 3112, F04B 2100

Patent

active

047845767

ABSTRACT:
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.

REFERENCES:
patent: 4056333 (1977-11-01), Lundquist
patent: 4565497 (1986-01-01), Miller et al.

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