It is normal for the potentiometer to become cold and its damping to increase. This is because the damping characteristics of the potentiometer are temperature dependent, and when the ambient temperature decreases, the resistance value of the potentiometer may increase accordingly. This phenomenon is mainly affected by the temperature coefficient of the internal material of the potentiometer.
The reason for the increased damping of the potentiometer is that as the temperature decreases, the resistance of the conductive material inside the potentiometer increases, leading to a decrease in the current in the circuit, thereby increasing the damping characteristics. This phenomenon may have an impact on the normal operation of equipment in some applications that are sensitive to temperature changes. Therefore, in these applications, some measures may need to be taken to stabilize the performance of the potentiometer, such as selecting materials with better temperature stability or using temperature compensation circuits.
It should be noted that different types of potentiometers may have different temperature coefficients, so when selecting a potentiometer, the appropriate one should be selected based on the specific application environment and requirements. Meanwhile, in order to ensure the normal operation of the potentiometer, it is also necessary to avoid placing it in extreme temperature environments
