VARIABLE RESISTOR WITH CIRCULAR DISPLACEMENT OF CONTROL KNOB AND WITH RESISTANCE UNIT RECTILINEAR IN SHAPE AND LINEAR IN FUNCTIONAL CHARACTERISTICS Russian patent published in 2001 - IPC

FIELD: radio electronics; manufacture of resistors. SUBSTANCE: non- wire-wound variable resistor has resistor and current-collector boards with spacer between them; novelty is introduction of flexible part placed on current-collector board in parallel with and coaxially to resistance layer; hold-down member made in the form of elongated projection on surface of moving system made in the form of control knob and placed in parallel to flat parallel surfaces of resistor and current-collector boards; axis of revolution of control knob lies along resistance layer axis and is perpendicular to its plane. Proposed resistor is distinguished by nonlinear functional characteristics including horizontal and drooping sections and by utilization of full angle of turn of moving system at small effective section of functional characteristic with resistance unit in all these cases being in linear dependence on variations in resistance value throughout its entire length. EFFECT: improved functional characteristics of resistor. 2 dwg