2.3.3. Blowing Power Sensor

The throwing blower is driven by the pulley. The pulley-type throwing blower torque and speed sensor are designed according to the original mechanical dimensions. The torque measurement is implemented in a similar structure as the shredding rollers. As for the speed detection, due to the small size of the throwing pulley, the outward structure of the speed panel is designed to achieve real-time acquisition of speed pulse signals, while 30 measuring points are evenly arranged along the end face of the pulley, as shown in Figure 3.

**Figure 3.** Physical view of blowing power sensor. 1: elastic pulley; 2: velocimetric panel; 3: mounting base; 4: torque sensor; 5: speed sensor.
