Package for speed sensing device having minimum air gap

Details Package for speed sensing device having minimum air gap Package for speed sensing device having minimum air gap

1992-05-11

1993-10-05

Lateef, Marvin M.

Electrical resistors

Resistance value responsive to a condition

Magnetic field or compass

32420721, 338 32H, 174 521, H01L 4300

Patent

active

052509257

ABSTRACT:
A magnetic field sensing device in the form of a sensor unit which reduces the effective air gap between the sensing device and its exciter is provided by packaging the sensing device in the manner that provides protection from the environment while simultaneously minimizing the distance between the sensing device and its exterior surface adjacent its exciter. The present invention is particularly suitable for automotive applications, such as magnetic field sensing devices for detecting the wheel speed for an electronic anti-lock braking system.

REFERENCES:
patent: 4227171 (1980-10-01), Masuda et al.
patent: 4398342 (1983-08-01), Pitt et al.
patent: 4401966 (1983-08-01), Ohmura et al.
patent: 4584552 (1986-04-01), Suzuki et al.
patent: 4922197 (1990-05-01), Juds et al.

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