REL175

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Rotary Potentiometers and Rheostats are electric devices which work with the principle of resistive divider. The REL175 is an application field and working principle of these types of devices. Variations in the relative resistance between the lower and the upper terminals of the device can be used to measure the position of the potentiometer in a certain range, and by adjusting the level of the applied voltage can be used to regulate the output voltage of a device.

What is a Rotary Potentiometer?

A Rotary Potentiometer can be considered as a three-terminal resistor with a sliding contact moved through a resistance track. It provides an adjustable ‘tap’ at any point along the resistance track. As the ‘tap’ is moved, the resistance between the upper and the lower terminals vary inversely. The movement of the resistance track produces a corresponding change in the output voltage.

REL175 Application Field and Working Principle

The REL175 is a potentiometer and rheostat for control of resistance in two directions, which can be used for functions such as readjustment of meter, adjustment control of audio equipment and dimmer control. Its operating principle is based on the measurement of relative resistance, or if you prefer, relative voltage, between two points in the resistance track. It is constructed with three terminals and spans over a 180° rotation. By connecting a voltage source to the outer terminals and measuring the voltage at the middle terminal, the amount of rotation of the potentiometer can be determined. It works in two directions, with one logarithmic voltage decrease when rotate anticlockwise and another linear increase when turning clockwise.

Uses of the REL175

The REL175 can be used for a variety of situations where precise control of resistance is needed. One of the most common applications of the REL175 is in dimmer control, allowing for a precise adjustment of the brightness of lightbulbs or the volume of electronic devices. Additionally, it can be used for readjustment of meters, such as flow meters, or temperature and humidity gauges, and for adjusting audio equipment, such as amplifiers or equalizers.

Advantages of the REL175

One of the main advantages of the REL175 is its accuracy. It can be used to precisely adjust the amount of resistance in the circuit, regardless of the mechanical position of the potentiometer. This ensures consistent results and improved accuracy of the device. Additionally, it has low power consumption, making it ideal for applications where energy conservation is important. Finally, it is durable and highly reliable at its intended operation range.

Conclusion

The REL175 is an application field and working principle of rotary potentiometers and rheostats. These devices work on the principle of resistive divider and can be used for functions such as readjustment of meter, adjustment control of audio equipment and dimmer control. By connecting a voltage source to the outer terminals and measuring the voltage at the middle terminal, the amount of rotation of the potentiometer can be determined. The REL175 offers a high degree of accuracy, low power consumption, and is highly reliable at its intended operation range, making it an ideal choice for a variety of applications.

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