There are several most important parameters of a cooling fan. One of them is the speed. The speed also determines the heat dissipation effect. How can we know how many revolutions per minute it has? Can it control its speed? This will use our speed measurement signal and temperature control signal. Let’s take a look at what is the speed, speed measurement signal and temperature control signal of the cooling fan.
The cooling fan speed refers to the number of times the fan blades rotate per minute, and the unit is rpm. The fan speed is determined by the number of turns of the coil in the motor, the operating voltage, the number of fan blades, the inclination angle, the height, the diameter and the bearing system. Speed and fan quality are not necessarily related. The speed of the fan can be measured by the internal speed measurement signal or externally.
In addition, the automatic temperature control radiator generally has a temperature control sensor, which can automatically control the fan speed according to the current working temperature. When the temperature is high, the speed is increased, and when the temperature is low, the speed is reduced to achieve a dynamic balance. , So as to maintain a better combination of wind noise and heat dissipation.