Principle of Carbon Film Potentiometer2021

The carbon film potentiometer is made by coating a layer of carbon film on a horseshoe-shaped paper rubber sheet. The relationship between the resistance change and the position of the intermediate contact has three types: linear, logarithmic and exponential. There are several types of carbon film potentiometers: large, small, and micro. Some of them are combined with a switch to form a switch potentiometer. Today I will introduce the principle of carbon film potentiometer, the characteristics of carbon film potentiometer, and the application field of carbon film potentiometer.

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Principle of Carbon Film Potentiometer

Carbon film potentiometers have three pins like ordinary potentiometers, but inside it is connected to two of the pins are two metal static pieces of different lengths, and the third pin is connected to the third pin. Metal rotor of the teeth. When the carbon film potentiometer rotates, there will be four states; the carbon film potentiometer is made by coating a layer of carbon film on a horseshoe-shaped paper rubber plate. The relationship between the resistance change of the carbon film potentiometer and the position of the intermediate contact has three types: exponential, linear and logarithmic. Carbon film potentiometers are divided into three types: miniature, small and large. Some potentiometers with switches are combined with switches.

Features of Carbon Film Potentiometer:

1. Wide resistance range.

2. The temperature coefficient and sliding noise are large.

3. There are many varieties and wide applications.

4. Easy to make and low price.

5. High resolution.

6. Various types of potentiometers can be made.

Seven, long life.

Carbon film potentiometer application field

Carbon film potentiometers are generally used in medical equipment, mixers, toys, stereos, car stereos, power amplifiers, radios, DVD/VCD, televisions, electronic message equipment, headphones, lamps and other related electronic digital and electronic equipment.