Potentiometer working and types

ORDER NOW Potentiometer construction Potentiometers comprise a resistive element, a 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. Many Inexpensive potentiometers are constructed with a reslstlve element formed Into an arc of a circle usually a little less than a full turn, and a wiper rotating around the arc and contacting It. The resistive element, with a terminal at each end, Is flat or angled. The wiper Is connected to a third terminal, usually between the other two.

Potentiometer working and types

Multi-turn pot Multiple rotations mostly 5, 10 or 20for increased precision. They are constructed either with a wiper that follows a spiral or helix form, or by using a worm-gear. Used where high precision and resolution is required. The worm-gear multi turn pots are often used as trimpots on PCB.

Dual-gang pot Two potentiometer combined on the same shaft, enabling the parallel setting of two channels. Most common are single turn potentiometers with equal resistance and taper.

More than two gangs are possible but not very common. Used in for example stereo audio volume control or other applications where 2 channels have to be adjusted in parallel.

Concentric pot Dual potmeter, where the two potentiometers are individually adjusted by means of concentric shafts. Enables the use of two controls on one unit. Often encountered in older car radios, where the volume and tone controls are combined. Servo pot A motorized potmeter which can also be automatically adjusted by a servo motor.

Used where manual and automatic adjustment is required. Often seen in audio equipment, where the remote-control can turn the volume control knob.

Dual-gang potentiometer Multi-turn potentiometer Linear potentiometers Potentiometers where the wiper moves along a linear path. Also known as slider, slide pot or fader. Type Applications Slide pot Single linear slider potentiometer, for audio applications also known as a fader.

High quality faders are often constructed from conductive plastic. For single channel control or measurement of distance. Dual-slide pot Dual slide potentiometer, single slider controlling two potentiometers in parallel.

Often used for stereo control in professional audio or other applications where dual parallel channels are controlled. Multi-turn slide Constructed from a spindle which actuates a linear potentiometer wiper.

Potentiometer – Working, Circuit Diagram, Construction & Types

Multiple rotations mostly 5, 10 or 20for increased precision. The multi turn linear pots are used as trimpots on PCB, but not as common as the worm-gear trimmer potentiometer. Motorized fader Fader which can be automatically adjusted by a servo motor.

Potentiometer Working Principle of Potentiometer on 24/2/ & Updated on 1/9/ This is a very basic instrument used for comparing emf two cells and for calibrating ammeter, voltmeter and watt-meter.4/4(6). Jan 09,  · For more info, visit grupobittia.com Potentiometers are adjustable variable resistors with 3 terminals. Learn how they work, whic. Potentiometer Working Principle of Potentiometer Published on 24/2/ and last updated on 1/9/ This is a very basic instrument used for comparing emf two cells and for calibrating ammeter, /5(9).

Common in studio audio mixers, where the servo faders can be automatically moved to a saved configuration. Slide potentiometer Multi-turn linear trimpot Digital potentiometers Digital potentiometers are potentiometers which are controlled electronically.

In most cases they exist of an array of small resistive components in series. Every resistive element is equiped with a switch which can serve as the tap-off point or virtual wiper position.

Rheostat A potentiometer can also be wired as a rheostator single variable resistance. Materials used for potmeters Properties Carbon composition Carbon composition ink molded on a substrate phenolic resin.

Most common material, low cost and reasonable noise and wear characteristics. Wirewound Wirewound pots can handle high power,are long lasting and can be very precise. They have however a limited resolution and rough feel. Most used in high power applications rheostats are often wirewound or as precision pots.

Conductive plastic Very smooth feel and high resolution, can be constructed to perform millions of cycles.

Potentiometer - Working, Circuit Diagram, Construction & Types

Can only handle a limited power and are expensive. Often used in high-end audio equipment where a high resolution and low noise are important. Cermet Very stable, low temperature coefficient and handles high temperatures well. On the other hand quite expensive and often limited amount of cylces allowed special long-life cermet pots also exist.

Often used for trimpots which do not have to be adjusted often.Potentiometer – Working, Circuit Diagram, Construction & Types Resistor, a small bundle of resistance, is one of the most used basic components in an electric circuit. Mostly used to regulate the current flow by adding/subtracting resistance from the circuit, these resistors are available in many shapes and sizes.

Potentiometer construction Potentiometers comprise a resistive element, a 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.

Jan 09,  · For more info, visit grupobittia.com Potentiometers are adjustable variable resistors with 3 terminals. Learn how they work, whic. Potentiometer – Working, Circuit Diagram, Construction & Types Resistor, a small bundle of resistance, is one of the most used basic components in an electric circuit.

Mostly used to regulate the current flow by adding/subtracting resistance from the circuit, these resistors are available in many shapes and sizes. A potentiometer consists of a resistive element having a sliding contact. This sliding contact is known as a wiper.

A potentiometer is also called as POT because it is used in voltage division. It is a resistive and passive transducer. This type of potentiometer is often used in audio volume control (logarithmic taper) as well as many other applications. Different materials are used to construct potentiometers, including carbon composition, cermet, conductive plastic, and the metal film.

Potentiometer working and types
Potentiometer Working Principle of Potentiometer