Acceleration sensor with magnetic biased mass and encapsulated c

Details Acceleration sensor with magnetic biased mass and encapsulated c Acceleration sensor with magnetic biased mass and encapsulated c

1991-07-30

1993-05-11

Scott, J. R.

Electricity: circuit makers and breakers

Special application

Change of inclination or of rate of motion responsive

200 6153, H01H 3514

Patent

active

052103846

ABSTRACT:
An accelerator sensor comprising a cylinder of a conductive material, a magnetized inertial member mounted in the cylinder so as to be movable longitudinally of the cylinder, a conductive member mounted at least on the end surface of the inertial member that is on the side of one longitudinal end of the cylinder, a pair of electrodes disposed at this one longitudinal end of the cylinder, and an attracting member disposed near the other longitudinal end of the cylinder. When the conductive member of the inertial member comes into contact with the electrodes, these electrodes are caused to conduct via the conductive member. The attracting member is made of a magnetic material such that the attracting member and the inertial member are magnetically attracted toward each other. An electrical resistor is bridged between the electrodes. The electrodes and the resistor are fabricated integrally out of a synthetic resin by insert molding.

REFERENCES:
patent: 4168410 (1979-09-01), Norris
patent: 4221940 (1980-09-01), Roth
patent: 4827091 (1989-05-01), Behr
patent: 4873401 (1989-10-01), Ireland
patent: 4929805 (1990-05-01), Otsubo
patent: 5053588 (1991-10-01), Bolender
patent: 5123499 (1992-06-01), Breed et al.

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