Motor application range and speed measurement method


The motor is mainly used in digital control system, wit […]

The motor is mainly used in digital control system, with high precision and reliable operation. If position detection and speed feedback are used, closed-loop control can also be achieved. Stepping motors have been widely used in digital control systems, such as digital-to-analog converters, CNC machine tools, computer peripherals, automatic recorders, clocks, etc. In addition, they are also used in industrial automation production lines and printing equipment.

The motor speed measurement method is as follows:

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The motor converts the pulse signal into angular displacement or linear displacement.
1. Good overload. The speed is not affected by the size of the load. Unlike ordinary motors, when the load is increased, the speed will drop. The stepper motor has strict requirements for speed and position.

2.It is convenient to control. The stepper motor rotates in units of "steps", and the digital characteristics are more obvious.
3. The structure of the whole machine is simple. The traditional mechanical speed and position control structure is relatively complex and difficult to adjust. After using a stepper motor, the structure of the whole machine becomes simple and compact. The tachometer motor converts the speed into a voltage and transmits it to the input as a feedback signal. The speed-measuring motor is an auxiliary motor. The speed-measuring motor is installed at the tail end of the ordinary DC motor, and the voltage generated by the speed-making motor is fed back to the DC power supply to achieve the purpose of controlling the speed of the DC motor.

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