Measuring and testing – Liquid level or depth gauge – Float
Patent
1985-08-06
1986-07-08
Frankfort, Charles
Measuring and testing
Liquid level or depth gauge
Float
73DIG3, G01F 2338
Patent
active
045985847
ABSTRACT:
An electric signal in an electrical level measuring transducer shall be generated in an explosion-proof manner, which continuously depends on the level in the interior of a container. The buoyancy of a float 14 is converted into a movement of a permanent magnet 36. The permanent magnet moves in the area of a Hall generator 44. The signal processing elements 48 are disposed in a tightly closed housing in explosion-proof manner. The Hall generator 44 is located in a non-magnetic part of the wall 38 of the housing 20.
REFERENCES:
patent: 2599550 (1952-06-01), Fraser
patent: 3444731 (1967-01-01), Nieuweboer
Oppenheimer, Michael, "In IC form, Hall-Effect Devices, . . . ", Electronics, Aug. 2, 1971, pp. 46-50.
Doyle, Owen, "Other Hall Makers", Electronics, Aug. 2, 1971, p. 49.
Dombrowski Ferdinand
Forster Dieter
Frankfort Charles
Sunvic Regler GmbH
Worth W. Morris
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