Acceleration sensor

Details Acceleration sensor Acceleration sensor

1993-03-22

1994-08-16

Scott, J. R.

Electricity: circuit makers and breakers

Special application

Change of inclination or of rate of motion responsive

200 6153, 200267, 335196, H01H 3514, H01H 154

Patent

active

053389050

ABSTRACT:
An accelerator sensor is formed of 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. At least a part of the electrodes described is made of a magnetic material which attracts magnetically the inertial member to prevent chattering between the inertial member and the electrodes.

REFERENCES:
patent: 4374311 (1983-02-01), Okahashi et al.
patent: 4827091 (1989-05-01), Behr
patent: 4988839 (1991-01-01), Kennicott
patent: 5021618 (1991-06-01), Ubukata et al.
patent: 5164556 (1992-11-01), Yoshimura et al.
patent: 5210384 (1993-05-01), Shimozono et al.

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