نتایج جستجو برای: a stepper motor with deriver
تعداد نتایج: 15587928 فیلتر نتایج به سال:
Wireless capsule endoscope achieved great success, however, the maneuvering of wireless capsule endoscope is challenging at present. A magnetic driving instrument, including two bar magnets, a stepper motor, a motor driver, a motor controller, and a power supplier, was developed to generate rotational magnetic fields. Permanent magnet ring, magnetized as S and N poles radially and mounted spira...
We present a simple motorized rotation mount for half-wave plate that can be used to rapidly change the polarization of light. use device switch high power laser beam between different optical dipole traps in an ultracold atom experiment. The uses stepper motor with hollow shaft, which allows propagate along axis minimizing inertia and mechanical complexity. A machined adapter is wave plate. ch...
Respiratory motion continues to present challenges in the delivery of radiation therapy to tumors in the thorax and abdomen by causing movement of structures within those areas. Several approaches to account for this movement in the planning and delivery of treatment have been developed over the past several years. To assist in the development and assessment of various techniques for respiratio...
A stepper motor is usually operated in position open-loop control for simplicity. However, order to improve the transient and steady-state performances of motor-based drive system, a high performance system designed feed encoder signal back form closed-loop such as general servo drive, high-performance speed loop controller can then be used overcome nonlinear characteristics motor, cogging forc...
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