نتایج جستجو برای: pm stepper motor
تعداد نتایج: 193687 فیلتر نتایج به سال:
Stepper motors are widely used in many applications where discrete, precise movement is required. There a variety of dedicated stepper motor controllers (sometimes referred to as “step sticks”) available on the market. Those provide number different control schemes that vary by aspects like current method, reference shape or maximum resolution increase (microstepping). The two most acknowledged...
We presented a novel platform for an ultrafast PCR system, called the Rotary PCR Genetic Analyzer, which incorporates a thermal block and resistive temperature detector (RTD) for thermal cycling control, a disposable PCR microchip, and a stepper motor. The influenza viral RNAs from H3N2, H5N1, and H1N1 were simultaneously identified with high sensitivity and speed.
A permanent magnet synchronous motor (PMSM) with rotor embedded segmented permanent magnet was analyzed. The structural features and flux weakening principle are introduced. The shape of the rotor is optimized to get a sinusoidal air gap magnetic density waveform and reduce the toque ripple. The whole-permanent-magnet (PM) motor and the segmented-permanent-magnet motor are compared from the asp...
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