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Current position£ºHome > News Differences between moving coil linear motor and moving magnet linear motor

Differences between moving coil linear motor and moving magnet linear motor

time£º2018/1/23  click£º12543
      Dynamic linear motor and moving magnetic linear motor difference, today we will give you a brief description of the difference between the two, so that more friends more intuitive understanding of the two functions, according to their needs to buy as a guide.

      Permanent magnet linear motor can be made of moving magnetic type, can also be made of dynamic type. As long as the permanent magnet magnetic flux generated by the winding through the DC excitation generated, any kind of permanent magnet linear motor can be changed to electromagnetic (moving magnetic) linear motor. Dynamic coil structure with small size, low cost and high efficiency. The voice coil motor (VCM) used in computer hard disk drives is a moving-coil permanent magnet linear DC motor.

      Magneto-linear motor without coil ends, armature windings are fully utilized; uniform air gap to eliminate the armature and the suction between the poles. Dynamic linear motor mover inertia, fast response; due to wire connections, the trip is generally smaller. Magnetism and the opposite of the above.

      Through the above simple comparison, I believe we have quickly understand it. Hope that we can make everyone faster and better to understand the function and purpose of linear motor.

      Linear motor is mainly used in high-end CNC machine tools, especially precision high-speed processing machine tools, special machine tools, large machine tools. Static characteristics of linear motor test is mainly linear motor positioning force, static characteristics, thrust linearity, unilateral magnetic pull test methods, test specifications, standards and test equipment. Linear motor dynamic characteristics of the test is mainly the peak current, thrust constant, thrust fluctuations, output / output power, efficiency, overload and positioning accuracy. Linear motor parameters include: winding resistance, winding inductance, back-EMF constant, electrical time constant, motor constant. Tongmao currently focuses on the project are: linear motor loading test technology and test equipment, linear motor positioning force test technology and test equipment, linear motor thrust coefficient test technology and test equipment, linear motor test bench planning programs.

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