Most of the potentiometers used in industrial joysticks are carbon film potentiometers or metal film potentiometers, which change the resistance value by sliding the brush or sliding rod on the carbon film. Joystick tells you that the key process difficulty lies in carbon film. The carbon film of the resistor body is made of ground carbon black, graphite, quartz, and other materials coated on the surface of the substrate.

The joystick tells you that the carbon film of the potentiometer resistor body is characterized by high resolution, good wear resistance, and long life. The disadvantages are current noise, slightly poor linearity, poor moisture resistance, and resistance stability.
Since industrial joysticks relatively require a certain life expectancy and require a certain degree of operational precision and accuracy, the use of carbon film potentiometers or metal film potentiometers can take into account both service life and operational accuracy.
The relative linear influence and current noise have less influence in the use of an industrial joystick, and the potentiometer itself and the electric control handle itself will be protected against dust and water, so the disadvantage of moisture resistance will not exist.
Through the above introduction and analysis of the Joystick factory introduce types of potentiometers for manipulation poles, hope it helps you.