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device for monitoring the integrity of any wall, metallic, or not, to automatically trigger an intervention with the use of violence against the wall.
device for monitoring the integrity of any wall, metallic, or not, to automatically trigger an intervention with the use of violence against the wall.
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机译:用于监视任何墙壁(无论是否为金属)的完整性的设备,以通过对墙壁施加暴力来自动触发干预。
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摘要
An apparatus for verifying the integrity of a wall automatically sets off an intervention in the case of an act committed against the wall. A capacitive sensor is formed on the external or internal surface of the wall and consists of a thin planar condenser matching the shape of the wall. An oscillator having variable frequency has its control input connected to a plate of the condenser, the other plate being connected to ground, and a circuit detects the variation of frequency of the output signal of the oscillator resulting from a variation of condenser capacitance.
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