The speed sensor can be located on different parts of the cotton picker, such as the wheels, transmission system, or other moving components. It works by detecting the rotational speed of these parts or the movement of the machine in order to calculate the ground speed accurately.

The information provided by the speed sensor is transmitted to the control system of the cotton picker, where it can be used to adjust various parameters such as engine power, conveyor speed, or overall machine speed. This helps operators to control the speed of the cotton picker, ensure consistent performance, and improve productivity while harvesting cotton.