Magnetic tile sensor with a non-magnetic case having a flange an

Details Magnetic tile sensor with a non-magnetic case having a flange an Magnetic tile sensor with a non-magnetic case having a flange an

1988-12-23

1990-03-20

Strecker, Gerard R.

Electricity: measuring and testing

Magnetic

Displacement

324262, 33364, G01B 714

Patent

active

049104594

ABSTRACT:
A magnetic tile sensor has a permanent magnet having a surface coated with a magnetic fluid and housed in a hollow portion of a nonmagnetic case, and a magnetic sensing element arranged outside the bottom portion of the case. When the case is tilted or is abruptly moved, the permanent magnet in the case is relatively displaced. The magnetic sensing element detects this displacement. Since the nonmagnetic case is sealed by a cold welding method, workability and reliability can be increased. In addition, a cap having a predetermined weight covers the permanent magnet so that a response characteristic is improved.

REFERENCES:
patent: 3253099 (1966-05-01), Hess
patent: 3305805 (1967-02-01), Tann
patent: 4282484 (1981-08-01), Morrow
patent: 4371836 (1983-02-01), Nickel et al.
patent: 4517514 (1985-05-01), Howell
patent: 4694247 (1987-09-01), Meili et al.

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