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Because the weighing result of the belt scale is the flow data, the accuracy and stability of the belt scale are related to the speed sensor in addition to the load sensor.
Since speed is a vector, there are angular speeds and line speeds. Therefore, there are two major categories of speed sensors: speed sensors that measure speed, and speed sensors that measure line speed.
The most frequently used tachometer on a belt scale is a tachometer that measures the speed of rotation. The speed of the belt determines the speed of movement of the belt.
According to the different working principle of the speed sensor, it can be divided into many kinds. The common classifications are photoelectric, magnetoelectric, Hall, contact, and so on.