Multi-purpose use of the motor
Miniature geared motors are small in size and capacity. They require a special motor for motors and applications, performance, and environmental conditions with output powers typically below a few hundred watts. Full name micro-special motor referred to as micro-motor. Commonly used in control systems to achieve the function of detecting, solving, amplifying, executing, or converting electromechanical signals or energy or transmitting mechanical loads.
Micromotors can be roughly classified into three categories in structure: 1 electromagnetic. The basic composition is similar to that of a normal motor, including stators, rotors, armature windings, brushes, etc., but the structure is extremely compact. 2 combinations. There are two common types: a combination of the above various micromotors, a micromotor, and an electronic circuit. For example, a combination of a DC motor and a sensor, an X-direction and a Y-direction linear motor, and the like. 3 non-electromagnetic. The outer structure is the same as the electromagnetic type. For example, the rotary products are made into cylindrical shapes, and the linear products form square shapes. Still, the internal structure differs greatly depending on the working principle.
The performance of various types of micro-motors varies greatly, and its performance parameters are difficult to clarify. In general, mechanical energy focuses on energy and energy indicators during operation and start-up; the output power, waveform, and stability are considered for power supply; the control micro-motors are biased towards static and dynamic characteristic parameters. The characteristic parameters of the first two types of motors are similar to those of ordinary motors. Only the control micromotor has its own unique characteristic parameters. 1 working characteristics. Commonly used output and input, or the relationship between one output and another. The static characteristic curve should be continuous, smooth, and free of mutations; frequency curves or response curves usually express the dynamic characteristics. The frequency curve should be smooth, and there is no sudden oscillation point; the response curve should converge quickly. 2 sensitivity. Corresponds to the size of the output of the unit input signal. Generally, it is expressed by specific torque, specific electromotive force, amplification factor, and the like—3 precision. Under certain input conditions, the difference between the actual value of the output signal and the theoretical value represents the accuracy of the micro-motor, which is represented by the commonly used error magnitude. 4 impedance or resistance. In the system, you should match the input and output impedance of the micromotor with the corresponding circuit to ensure the running performance and accuracy of the system. 5 reliability. Not only is it a special requirement for controlling micromotors, but also for driving micromotors and power micromotors. The parameters such as service life, failure rate, reliability, and mean time between failures are used to characterize the operational reliability of the micro-motor.
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