BODILY SENSOR OF FORCE IMPULSE Russian patent published in 2004 - IPC

FIELD: burglar alarm systems engineering.

SUBSTANCE: sensor has cylindrical body made of isolating material with two enclosed hollows separated by a central wall. In one of said hollows a sealed-contact reed relay is mounted, with outputs bent to one side, and in the other hollow, which is covered by a plug with apertures for reed relay outputs, two permanent magnets are placed, which are of cylindrical form with magnetization vectors directed in parallel to longitudinal axis of reed relay. For force impulse, which is equal or greater than weight of one magnet, with any direction of vector, located within limits of sphere surface at body angle 4π stereoradians with match of longitudinal axis of sensor with force impulse vector, permanent magnets are directed by matching hollows toward each other and move freely relatively to reed relay. In base state with absent force impulse relation of value of allowed displacement of center of overlapping of contact parts of reed relay relatively to middle of space between matching poles of magnets to value of reed relay contact parts overlapping is limited by certain limits with allowed difference of magnetization of each magnet from the other.

EFFECT: wider sphere of practical application of sensor due to providing for short-time shorting of controlled electrical circuit under effect from force impulse from hit at surface with any, within limits of body angle of 4π stereoradians, position in space of protected surface with match of longitudinal axis of sensor and acceleration vector of force impulse.

4 cl, 5 dwg