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IR推出三相逆变器驱动器集成电路简化电机驱动器设计
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《电子质量》 2002年第12期110-110,共1页
关键词 IR公司 IR2136 三相逆变器 驱动器 集成电路 电机驱动器设计
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Intelligent Tracking Telescope Using Embedded Microcontrollers
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作者 Bassam Shaer David Cudney 《Computer Technology and Application》 2011年第11期849-857,共9页
This paper presents the design and implementation of the embedded microcontrollers within a telescope control system. The design objectives of the overall system are to automatically find light emitting objects at nig... This paper presents the design and implementation of the embedded microcontrollers within a telescope control system. The design objectives of the overall system are to automatically find light emitting objects at night within a user specified area, to track a light emitting object for a user specified time given the initial position of the object, and to allow the user access to these functions through a graphical user interface. The embedded system is used to provide a communication link between the graphical user interface and system hardware, to provide angle data processing for a dual axis accelerometer, to provide data processing for an electronic compass, and to provide pulse outputs for the step and direction inputs of three stepper motor drives. This paper will describe the design, implementation, and results of each of these objectives. 展开更多
关键词 INTELLIGENT TRACKING TELESCOPE electronic compass.
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Design and performance test of a two-axis fast steering mirror driven by piezoelectric actuators 被引量:4
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作者 方楚 郭劲 +3 位作者 杨国庆 姜振华 徐新行 王挺峰 《Optoelectronics Letters》 EI 2016年第5期333-336,共4页
A novel design of a two-axis fast steering mirror(FSM) with piezoelectric actuators is proposed for incoherent laser beam combination. The mechanical performance of the FSM is tested. The results show that the tilting... A novel design of a two-axis fast steering mirror(FSM) with piezoelectric actuators is proposed for incoherent laser beam combination. The mechanical performance of the FSM is tested. The results show that the tilting range of the mirror is about 4 mrad, and the 1st-order resonance frequency is about 250 Hz. A self-designed grating encoder is taken as the sensor, which ensures the optimal precision of 10 μrad. The novel mechanical design can meet the requirement of engineering in incoherent laser beam combination. 展开更多
关键词 mirror piezoelectric grating steering encoder requirement scanner absolute elliptical inertia
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