ID 原文 译文
15175 针对模拟调速方法控制精度和柔性差的缺点,提出了一种数字化的单相电机调速方案。 Aiming poor precision and flexibility of the analog speed control method, a digital speed control scheme for the single-phase motor is proposed.
15176 介绍了单相交流调压调速原理,设计了控制器主电路和过零检测电路,对电路进行了仿真和参数优化,在此基础上搭建了基于STM32的单相电机调压调速控制系统并进行实验验证。 Firstly, the principle of single-phase AC variable voltage speed control is introduced, the main circuit of the controller and the zero-crossing detection circuit are designed, and then the circuit simulation and parameter optimization are carried out. On that basis, an STM32-based variable voltage speed controller for the single-phase motor is built.
15177 仿真与实验结果表明,过零信号检测判断准确,实验波形与理论分析一致,实现了数字化调压调速。 The simulated and experimental results are shown to be in good agreement, verifying the reliability of the digital speed control method.
15178 介绍了激光三角法高度测量技术和基于数字信号处理器DSP与线阵CCD的激光高度测量系统。 This article briefly introduces the laser triangulation height measurement technology, and the laser height measurement system based on digital signal processor DSP and linear array CCD.
15179 采用比例恒流源和镜像恒流源组合,设计了输出功率稳定可调的激光二极管驱动电路和线阵CCD的驱动电路,借助DSP定时器周期调节灵活的优点,方便地调节光积分时间来提高信号质量。 Using a combination of proportional constant current source and mirror constant current source, a laser diode drive circuit with stable and adjustable output power is designed. The driving circuit of the linear CCD is given. With the advantage of flexible adjustment of the DSP timer period, it is convenient to adjust the light integration time to improve the signal quality.
15180 针对光刻工艺中不同的测量对象表面的光学特征,自动进行激光二极管增益控制和光积分时间调节,提高测量的适应性和测量效率。 According to the optical characteristics of different measuring object surfaces, the laser diode gain control and light integration time adjustment are automatically performed to improve the adaptability and efficiency of measurement.
15181 紧耦合阵列天线具备超宽带性能,可广泛应用于雷达、通信、情报侦察等领域。 The tightly coupled array antenna has ultra-wideband performance and can be widely used in radar, communications, in-telligence reconnaissance and other fields.
15182 提出了一种采用新型电容耦合器的宽带紧耦合阵列天线,获得了宽带性能。 In this paper, a wideband tightly coupled array antenna( TCA) adopts a novel capacitive coupler is proposed.
15183 该电容耦合器通过将两条部分重叠的传输线沿阿基米德螺旋曲线缠绕而获得,可以得到阵元间的强电容耦合,同时为了增加相邻天线单元间的电容,耦合器采用了双层印刷结构。 The proposed capacitive coupler, called Archimedes capacitive coupler, is based on two partially overlapping transmission lines obtained by winding them followed the Archimedes spiral. In addition, in order to further increase the capacitance between the two adjacent elements, the coupler uses a double-layer printed structure.
15184 此外,采用集成的宽带巴伦和电介质覆层,进一步提高了天线的宽带匹配性能。 Meanwhile, an integrated Marchand balun and a dielectric superstrate are adopted for further improving the matching performance of the designed antenna.