1. Low Speed Inevitably Reduces Torque OutputWhen reducing the speed of a brushless DC motor by lowering the PWM duty cycle, the electromagnetic torque it delivers decreases significantly. The system naturally enters a low-torque operating regime. The lower the speed, the weaker the motor’s ability to overcome external loads. 2.…

A: Vacuum filtration, also known as “suction filtration,” is an application that uses vacuum-generating equipment, such as vacuum pumps, to accelerate the separation of solid-liquid mixtures. The equipment used typically includes a Buchner funnel, a filtration flask, and a vacuum pump. When selecting an appropriate micro vacuum pump, two main…

A: In the field of chemical analysis, gas washing typically involves bubbling gas through a washing bottle filled with liquid to remove impurities soluble in the liquid or to remove or convert specific components through reaction with the liquid. In aquaculture, aeration increases the dissolved oxygen levels in the water.…