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Rotary Potentiometers, Rheostats

91R1A-R22-A13L application field and working principle

A rotary potentiometer or Rheostat is a two-terminal resistive device that controls the electrical current in an electronic system. It is capable of either controlling voltage or current flow. When the terminals are at the same voltage, current can flow between them and the resistance in the resistor can be adjusted to control the current flow. The term \'potentiometer\' comes from the Greek words \'potenti\' meaning \'power\' and \'meter\' meaning \'measure\'.

The 91R1A-R22-A13L rotary potentiometer is a multi-turn version of the rotary potentiometer. It is a two-terminal resistive device that consists of a static resistor and a moveable shaft, which is turned to change the resistance between the two terminals. These devices are used to control the current in an electrical circuit or to measure the voltage or current across a resistor.

The 91R1A-R22-A13L has a wide range of applications. It can be used to accurately control the current in an electrical circuit, to measure the voltage or current across a resistor, or as a variable resistor in a feedback loop. It can also be used to control the voltage in a power supply or to adjust the gain of an amplifier or oscillator. Additionally, it can be used as an adjustable voltage divider or as a measure of resistance in a precision instrument. It can also be used to adjust the level of a gain control.

The 91R1A-R22-A13L rotary potentiometer works in a similar manner to the classic single-turn potentiometer. The multi-turn version consists of a static resistor and a moveable shaft, which is turned to adjust the resistance between the two terminals. As the shaft is turned, the change in resistance is measured through the use of a linear step- down mechanism. This mechanism reduces the resistance of the resistor by a predetermined amount each time the shaft is turned for a certain amount of times. The resistance of the device can also be adjusted by turning the shaft in the opposite direction if necessary.

In summary, the 91R1A-R22-A13L rotary potentiometer is a two-terminal adjustable resistive device that can be used to accurately control the current in an electrical circuit or to measure the voltage or current across a resistor. It has a wide range of applications, including the control of current in an electrical circuit, the measurement of voltage or current across a resistor, the adjustment of voltage in a power supply, the control of the gain of an amplifier or oscillator, and the adjustment of the level of a gain control.

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