Level position measuring method and device

Details Level position measuring method and device Level position measuring method and device

1994-04-25

1995-10-24

Fulton, Christopher W.

Geometrical instruments

Indicator of direction of force traversing natural media

Level or plumb, terrestrial gravitation responsive

33332, G01C 504

Patent

active

054599334

ABSTRACT:
A level position measuring method including providing a hose having a first end and a second end; filling the hose, at least partially, with a liquid so as to form a water head; leaving the first end of the hose open to atmospheric pressure; closing the second end of the hose by airtightly fixing a pressure sensor to the second end of the hose near the water head; configuring the hose so as to define a reference level by obtaining a reference level pressure value dispatched from the pressure sensor; and measuring the level position by obtaining a level position pressure value dispatched from the pressure sensor which varies from the reference level pressure value in proportion to a vertical displacement of the second end of the hose.

REFERENCES:
patent: 3212195 (1965-10-01), Paarma et al.
patent: 4231163 (1980-11-01), Turloff
patent: 4297791 (1981-11-01), Mende
patent: 4434561 (1984-03-01), Gaspar
patent: 4536968 (1985-08-01), Lopiccolo
patent: 4669484 (1987-06-01), Masters
patent: 5001926 (1991-03-01), Delignieres
patent: 5367782 (1994-11-01), Izumitani

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