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Rotary Potentiometers, Rheostats

The 81A1A-B24-A15L is a type of rotary/rheostat, which is a two-terminal measuring device that can be found in most electronic designs. This type of device is used to measure varying resistance over a wide range of values. It is commonly used in applications such as volume and gain control, electric motor speed control, variable power supply voltage control, and signal conditioning.

Application Field

The 81A1A-B24-A15L is a rotary/rheostat, which is a two-terminal measuring device. This type of device is used in a wide variety of applications, such as volume and gain control in audio equipment, electric motor speed control, variable power supply voltage control, and signal conditioning. The rotary/rheostat has also found widespread use in manufacturing, vehicles, process control, avionics, and medical devices due to its versatility and accuracy.

Working Principle

The working principle of the 81A1A-B24-A15L is relatively straightforward. It is made up of two separate components: a fixed resistor and a rotary dial. The rotary dial is connected to a movable element, which when rotated, changes the resistance between the two terminals. The resistance between the two terminals is measured by looking at the resistance of the fixed resistor and the resistance of the rotary dial. As the dial is turned, the resistance of the rotary dial increases or decreases, depending on the direction in which it is rotated. This change in resistance changes the voltage level at the two terminals.

Conclusion

The 81A1A-B24-A15L is a rotary/rheostat, a two-terminal measuring device that can be found in most electronic designs. It is commonly used in applications such as volume and gain control, electric motor speed control, variable power supply voltage control, and signal conditioning. The working principle of the device is relatively straightforward and involves a fixed resistor and a rotary dial. As the dial is turned, the resistance of the rotary dial increases or decreases, depending on the direction in which it is rotated, changing the voltage level at the two terminals.

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