FIELD: measurement equipment.
SUBSTANCE: design of a capacitance button comprises the following components serially arranged along the height and in contact with each other: an upper transparent conducting metal coating 1 on a protective glass 2, a lower transparent conducting metal coating 3 on the glass 2, a ring 4 with vertical slots from conducting rubber resting against a plastic ring 5, under which there is an electronic circuit board 6 with a sensitive electrode 7 on its upper side. At the same time coatings 1 and 3 are made in the form of sectors separated between each other by gaps, and the lower coating 3 is pressed at the bottom without a gap along the perimeter of the protective glass 2 by the ring 4 from conducting rubber to provide contact with the sensitive electrode 7 of the electronic circuit board 6.
EFFECT: higher sensitivity of a button.
3 dwg
