Universal current sensor ppt11/2/2022 ![]() Another type is the linear slider potentiometer, which has a wiper which slides along a linear element instead of rotating.Ĭontamination can potentially enter anywhere along the slot the slider moves in, making effective sealing more difficult and compromising long-term reliability.Īn advantage of the slider potentiometer is that the slider position gives a visual indication of its setting. The only point of ingress for contamination is the narrow space between the shaft and the housing it rotates in. For single-turn potentiometers, this wiper typically travels just under one revolution around the contact. On panel potentiometers, the wiper is usually the center terminal of three. The wiper is connected to a third terminal Fusually between the other two. Each end of the resistive element is connected to a terminal E, G on the case. ![]() The resistive element can be flat or angled. #Universal current sensor ppt full#Many inexpensive potentiometers are constructed with a resistive element B formed into an arc of a circle usually a little less than a full turn and a wiper C sliding on this element when rotated, making electrical contact. Potentiometers consist of a resistive elementa sliding contact wiper that moves along the element, making good electrical contact with one part of it, electrical terminals at each end of the element, a mechanism that moves the wiper from one end to the other, and a housing containing the element and wiper. ![]() There are a number of terms in the electronics industry used to describe certain types of potentiometers. Potentiometers are rarely used to directly control significant power more than a wattsince the power dissipated in the potentiometer would be comparable to the power in the controlled load. Potentiometers operated by a mechanism can be used as position transducersfor example, in a joystick. ![]() Potentiometers are commonly used to control electrical devices such as volume controls on audio equipment. The measuring instrument called a potentiometer is essentially a voltage divider used for measuring electric potential voltage the component is an implementation of the same principle, hence its name. A potentiometer is a three- terminal resistor with a sliding or rotating contact that forms an adjustable voltage divider. ![]()
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