Balancing-vessel transducer with inter-communicating chambers fo

Details Balancing-vessel transducer with inter-communicating chambers fo Balancing-vessel transducer with inter-communicating chambers fo

1987-02-20

1989-01-03

Woodiel, Donald O.

Measuring and testing

Fluid pressure gauge

Balance

G01L 724

Patent

active

047947969

ABSTRACT:
The balancing-vessel transducer disclosed consists of a structure or housing enclosing two intercommunicating chambers part-filled with a liquid, and made freely rotatable about a horizontal axis coinciding substantially with its center of mass. One such chamber is in receipt of a pneumatic signal, while the remaining chamber is held at a constant reference pressure, such that liquid is displaced from one chamber to the other, thereby occasioning a redistribution of mass; the structure responds by rotating, its movement being checked by a force of reaction that varies in proportion to the force of the pneumatic signal, and turns through an angular distance that can be sensed in the shift of an eccentric pin attached to the structure itself.

REFERENCES:
patent: 1160679 (1915-11-01), Wilkinson
patent: 1700204 (1929-01-01), Lomer
patent: 2119838 (1938-06-01), West
patent: 2331153 (1943-10-01), Ackley
patent: 2786481 (1957-03-01), Donaldson
patent: 2822689 (1958-02-01), Bonapace

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