CAPACITIVE DETECTION TOOL WITH VOLUME DETECTION ZONE Russian patent published in 2022 - IPC G08B13/26 

FIELD: protection technical means.

SUBSTANCE: invention relates to technical means of protection (PTM) of the perimeters of objects, in particular, to capacitive means of detection. The effect is achieved by creating a capacitive detection tool containing two capacitive-type sensing elements connected to the detection tool circuit using two electrical buses, one of the sensing elements is made in the form of supports of metal elements installed in the ground through insulators, and the second sensing element is made in the form of a sheet of protective fencing, made of metal elements isolated from the ground, and installed in front of the first sensitive element, made in the form of supports made of metal elements. In this case, both sensitive elements of the capacitive type form two capacitor plates, creating a volumetric detection zone. In addition, the first and last support of the capacitive sensing element, made in the form of supports of metal elements, are installed opposite the beginning and end of the capacitive sensing element of the protective barrier, respectively.

EFFECT: expansion of the volume detection zone. due to the use of two types of capacitive SE, forming, respectively, two capacitor plates, the change in capacitance of which is measured and controlled by the developed circuit of the detection means.

3 cl, 4 dwg