drive pulse造句

• Optimization of drive pulse configuration for transient ne - like fe x - ray laser
  射线激光抽运脉冲结构的优化计算
• A thermoacoustically driven pulse tube refrigerator capable of using low - qualified heat source
  可利用低品位热源的热声驱动脉管制冷机
• The last part of the thsis presents a novel fast response digital variable optical attenuator . this device is driven by two electromagnetic driving units rather not stepper motors . a wide attenuation ( 40db ) was fully digitized and can be set by a certain number of driving pulses
  论文最后针对现有数字可调光衰减器均由步进电机驱动，体积庞大，造价高昂且速度缓慢的缺点，利用微反射单元设计了一种高速数字式可调光衰减器。
• Recent experiments have succeeded in obtaining oscillations from the new system , with frequencies of 66hz and 23hz for the cases with helium and nitrogen as the working fluids , respectively . the traveling wave system is expected to be one of the good candidates as a driver for pulse tube refrigerator , leading to a thermoacoustically driven pulse tube refrigerator without any moving component
  还利用deltae对环路部分进行了数值模拟分析，着重讨论了系统的起振临界温度与临界加热功率、效率与加热温度的关系、喷射泵的作用以及不同工质(氮气和氦气)的比较等，得出一些有益的结论。
• In the next place , by studying the change of the resonant frequency of the whole system , this paper designs the circuit to track the resonant frequency of the system by cd4046 mainly . at the same time , in order to improve the efficiency and get better dynamic capability of the converter , we choose pll and fuzzy control after comparing the pll circuit , fuzzy circuit and pll ? fuzzy control circuit . in the end , this paper brings forward the control blue print to realize the drive control circuit of the high frequency converter , using the dsp chip as the key part to realize four routes of pwm drive pulses with dead band of the control system
  其次，通过对整个系统谐振频率变化的分析和研究，设计了以锁相环cd4046为核心的锁相环控制电路，同时，在综合比较锁相环控制、模糊控制以及模糊控制和锁相环复合控制三种控制算法的基础上，进行了系统仿真，得出采用复合控制可使跟踪电路既具有锁相环路较好的稳态性能，又拥有模糊控制较好的动态性能，系统鲁棒性能好，同时也提高了逆变器的效率。
• After reviewing the history and recent developments of the research on thermoacoustics , and introducing the classical thermoacoustic theory , we carry out the following investigations : 1 ) thermoacoustically driven pulse tube refrigerator ( tadptr ) experiments have been done on the self - built pulse tube refrigerator driven by standing wave thermoacoustic prime mover system
  本文首先回顾了热声机械的历史及现状，详细介绍了热声学理论基础，重点研究了以下若干问题： 1驻波型热声驱动器驱动脉管制冷机在自行搭建的驻波型热声驱动脉管制冷机实验装置上进行了实验研究。
• The system comprises three modules : the first is the ccd driver module , which controlled with cpld . programming the cpld to produce ccd driving pulses and synchronized communication signals . after preprocessing , the output video signals are transmitted into high resolution adc module , in which they are converted into digital signals , and then processed in arm processing module
  整个系统分为三个模块: ccd驱动模块的核心是一片复杂可编程逻辑器件( cpld ) ,对其编程产生ccd的驱动脉冲及同步控制信号;视频输出信号经预处理后,由高精度ad转换模块进行采样,将ccd输出的模拟信号转换成数字量;最后,将数据送入arm处理系统中进行后续处理。
• This paper describes an automatic contest robot from the cctv holding “ the first robot tv contest all over the academician ” , describes the function and the realization of the robot in greater detail . the robot adopts two stepper motors in the stepped driving control system and putting - ball control system like fishing , with the control of at89c52 single - chip microcomputer , it can synchronously produce driving pulse for two stepper motors and control the moving of the robot along the predetermined line
  该竞赛机器人采用步进电机作为行走驱动，钓鱼杆式的放球控制系统，在at89c52单片机的控制下,分别为左、右步进电机产生脉冲，控制机器人按照预设的固定路线行走，待机器人到达预定的目标位置后，同时控制多个放球机构，从而能分别将赛球准确地放入到比赛圆筒中。
• This paper presents a method that chopping wave is done by switch devices which consist of three - level resistance regulating module and intelligence power module ipm , and which realizes constant - current discharge of storage battery . to achieve the intelligence control of the drive protection and the discharge process of ipm , the paper designs circuit formed by igbt threshold drive pulse pwm signals . ipm fault - blocking protection circuit and microcomputer 80c196 . the devices can accurately control the 0 ~ 150a discharge current and the discharge time of the storage battery and calculate the releasing power
  实现蓄电池恒流放电过程智能控制是蓄电池放电装置发展的必然趋，本文提出了一种通过三极电阻调节模块和由智能功率模块ipm为开关器件进行斩波从而实现蓄电池恒流放电的方法。为达到对ipm的驱动保护和放电过程的智能控制，文中设计了igbt门极驱动脉冲pwm信号形成电路和ipm故障封锁保护电路及由单片机80c196为核心的微机控制器。本装置能够对蓄电池进行0 150a放电电流及放电时间的精确控制及释放容量的计算。
• Some simulations with deltae has also been made to predict the performance of the system . at the end of this section , proposals and schemes are also given for the further experiments . 4 ) thermoacoustically driven puke tube refrigerator ( tadptr ) with the successful operation of the standing wave thermoacoustic prime mover , we transferred part of our efforts to the thermoacoustically driven pulse tube refrigeration , which is actually the original aim for our study on the thermoacoustic prime mover
  热声驱动脉管制冷机在成功研制热声驱动器的基础上，对其与脉管制冷机(一种在低温端没有运动部件的新型的低浙江大学博士学位论文金滔：热声驱动器及其驱动的脉管制冷研究2001年5月温制冷机）的联接进行了匹配分析，并搭建了热声驱动脉管制冷机的实验台，进行了系统的实验研究。