EP 0537812 B1 19980107 - A position-disturbance sensor
Title (en)
A position-disturbance sensor
Title (de)
Positionsstörungssensor
Title (fr)
Palpeur de dislocation de position
Publication
Application
Priority
SE 9102662 A 19910916
Abstract (en)
[origin: EP0537812A2] A position-disturbance sensor for sensing any position-disturbance or "upset" of the sensor from a predetermined rest position. The sensor (1) includes a housing (2) with an easily movable metal ball (3) or the like, which, upon any upset of the sensor, makes contact with two of a plurality of contact pins (I-III) fixedly placed in the housing for connecting or disconnecting a supply voltage (U1) to an electronic circuit (5). The circuit has a first capacitor (C2) capable of, at each connection of the supply voltage, receive a charge addition, the voltage across the capacitor (C2) reaching a predetermined level only upon a certain number of connections of the supply voltage, in order to indicate an upset of the sensor. The circuit has also a second capacitor (C1) being incorporated in a RC-circuit (R1, C1) which is so dimensioned that the second capacitor (C1) will not substantially be discharged during rapid contact changes of the ball (3), e g when the sensor is upset as a result of an explosion at the vicinity of the sensor. <IMAGE>
IPC 1-7
IPC 8 full level
F42C 19/06 (2006.01); H01H 35/02 (2006.01)
CPC (source: EP)
F42C 19/06 (2013.01); H01H 35/02 (2013.01)
Designated contracting state (EPC)
DE GB NL
DOCDB simple family (publication)
EP 0537812 A2 19930421; EP 0537812 A3 19950315; EP 0537812 B1 19980107; DE 69223903 D1 19980212; SE 469048 B 19930503; SE 9102662 D0 19910916; SE 9102662 L 19930317
DOCDB simple family (application)
EP 92202699 A 19920907; DE 69223903 T 19920907; SE 9102662 A 19910916