Tilt sensor having central first bottom surface and second conti

Details Tilt sensor having central first bottom surface and second conti Tilt sensor having central first bottom surface and second conti

1987-10-22

1989-09-12

Eisenzopf, Reinhard J.

Electricity: measuring and testing

Magnetic

Displacement

324262, 33364, G01B 714

Patent

active

048663794

ABSTRACT:
There is proposed a tilt sensor in which a permanent magnet having a surface coated with a magnetic field is housed in a hollow portion of a nonmagnetic case, and a magnetic sensing element is disposed outside a bottom portion of the case. When the case is tilted at an angle exceeding a predetermined angle, the permanent magnet is greatly moved and the magnetic sensing element detects the movement of the magnet. Furthermore, adverse influences due to magnetic attraction between the permanent magnet and the magnetic sensing element or a surface tension of the magnetic fluid are compensated.

REFERENCES:
patent: 3252057 (1966-05-01), Hoeppel
patent: 3305805 (1967-02-01), Tann
patent: 3397347 (1968-08-01), Hoeppel
patent: 4282484 (1981-08-01), Morrow
patent: 4316145 (1982-02-01), Tann
patent: 4442405 (1984-04-01), Andrejasich et al.
patent: 4694247 (1987-09-01), Meilli et al.

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