FIELD: electric engineering, in particular, engineering of elements for controlling and commutation of electric circuits, possible implementation for construction of panels for controlling electro-mechanical devices, in form of separate switches, in key-based discontinuous information input devices in form of keyboards.
SUBSTANCE: keyboard has additional number of tension-sensitive elements same to number of keys and having contacts for taking in signals, connected to electronic block for processing signals. Device additionally has joined rigidity element and selector made of elastic material, wherein tension-sensitive elements are positioned, while in electronic block for processing signals function of alternating measurement of signal amplitude is realized, which signal is taken from each tension-sensitive element, value of amplitude is compared to preset threshold value and signal is formed at output, appropriate for pressed key.
EFFECT: prevented false activations and higher reliability of keyboard.
3 cl, 2 dwg
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