Acceleration sensor

Details Acceleration sensor Acceleration sensor

1991-07-23

1993-05-18

Chapman, John E.

Electricity: circuit makers and breakers

Special application

Change of inclination or of rate of motion responsive

200 6153, 73514, G01P 15135

Patent

active

052123588

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. The cylinder is made of a copper alloy having a resistance temperature coefficient less than 3.times.10.sup.-3.

REFERENCES:
patent: 3100292 (1963-08-01), Warner et al.
patent: 4827091 (1989-05-01), Behr
patent: 4873401 (1989-10-01), Ireland
patent: 4933515 (1990-06-01), Behr et al.
patent: 4959513 (1990-09-01), Maniar

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