发射控制

First, this article introduced the status of the electromagnetic launch technology in general. Then, the author further introduced a new principle of coil launch technology and its inductance in the equivalent circuit which are based on the principles of linear motor. It is a more comprehensive thought in the study. Third, in the building of the power supply system, the most important things are the trigger control loop structures, the gap switch debugging, the measurement of the impact current, and electromagnetic interference protection. Finally, I introduced the experiment, the simulation analysis of some questions in the experiment. The most important thing is the analysis of the equivalent circuit of the stator windings. And the author build a simulation model based on it.

本文首先介绍了电磁发射技术的概况；其次，基于直线电机的原理，介绍了直线驱动线圈发射技术的基本原理、等效电路和回路电感计算，得到了较完整的课题研究思路；第三，搭建电源系统，工作的的重点是触发控制回路的研制、间隙开关的调试、冲击电流的测量、电磁干扰防护措施；最后，介绍了课题实验情况，对实验中产生的问题进行了仿真分析，其中以定子线圈的等效电路的分析为重点，建立了仿真模型，并对参数的变化进行了仿真研究，为后续的实验研究提供参考。

One or both of transmit and receive aperture controls may include preventing some element of the transducer array from transmitting or receiving, calculating weighting apodizations to combine with standard apodizations for each frame, or determining an aperture size based on an f-number for the transducer array for each frame.

发射和接收孔径控制中的一个或二者可以包括：阻止换能器阵列中的某个元件进行发射或接收，针对每一帧计算加权变迹以将其和标准变迹相组合，或者针对每一帧根据换能器阵列的F数来确定孔径尺寸。

The simulating results show that this new kind of gene gun not only meet the speed requirement of practical gene gun application,but also has an easy speed controlling characteristics by means of the initial charge voltage of the driving capacitor in the driving system.

仿真结果表明，新型基因枪的微弹发射速度不仅可以通过调节其驱动电路的初始充电电压的幅值来控制，而且其微弹发射速度能够满足基因枪的实际使用速度要求。

In order to solve the problem that patient's treatment time and intensity is different, we use four LED nixie light dynamic demonstration to demonstrate the treatment time, It has three pressed keys, two pressed keys are used for controlling the treatment time's addition and subtraction, one for the treatment intensity and one used for treatment meter's height level cut.

为了解决治疗强度和治疗时间的问题，我们采用了四位LED数码管动态显示治疗时间，并设置了三个按键，一个用来控制治疗强度，也就是控制激光发射头高低电平的切换，两个按键用来控制治疗时间的加减。

By designing the mould to change the propellants model frame, selecting differentmaterials as propellant seal layer agents, studying the preparation technics, we havepreferably solved the PSS seal layer pressurize and combustion disciplinarian problem, andobtained the remarkable increasing burning surface effect.The practical increment ofΓvalue reachs 3.2 upwards conducting closed bomb firings, comparing with 19 holepropellants—the best progressivity burning in the present, whose practical increment ofΓvalue is 1.2, the PSS amplitude ofΓvalue exceeds 2.5 times.

通过药型结构和模具的设计、端面密封材料的选择和制备工艺的研究，较好地解决了PSS发射药的端面密封和燃烧规律控制问题，获得了显著的增面性燃烧效果，密闭爆发器实验中燃气生成猛度的实际增量达到了3.2以上，与目前增面性最好的19孔发射药实际增量的1.2左右相比，增幅超过了2.5倍。

The wireless receival circuit receives the voice identification signal transmitted from the voice remote circuit and then control the robot by mechanic executable circuit to achieve the action of robot.

CCD摄像头采集视频信号，通过微波发射器件发射；无线接收电路接收声音遥控电路发送来的声音识别信号，控制机器人由机械执行电路实现机器人动作。

The launch site, testing system and ground application system have also been completed for launch.

在发射场上，测试系统与地面控制系统也完成了发射准备。

The missiles are intended for launch to a general location where their guidance systems take over and spot carriers for attack with warheads intended to neutralize the ships' threat by destroying aircraft on decks, launching gear and control towers, Giarra said.

该导弹发射的大致位置打算在他们的指导系统，接管并当场为目的，以消除摧毁在舰艇甲板上飞机的威胁，发射装置和弹头的攻击控制塔运营商，Giarra说。

The main content consists of the following aspects: The essential techniques of rate control are introduced, such as the principle of rate detection by quartz crystal﹑the relationship between filament emission current and filament temperature﹑the temperature dependence of material evaporation characteristic﹑the electron beam focalizing characteristic and the theory of rate closed-loop control.

主要内容包括以下几个方面：围绕电子束蒸发速率控制综合了速率控制的相关技术，比如蒸发速率石英晶振探测的原理﹑灯丝发射电流与灯丝温度的关系﹑膜料蒸发特性与蒸发温度的关系﹑电子束焦斑聚焦特性及速率闭环控制的原理。

Using CPLD to deal with the incepted waveform signal can improve the precision of extraction pulse, eliminate interference effectively, it established the foundation of high precise time intervals measurement.

系统选用了高精度时间间隔测量芯片TDC-GP2用于时间的测量以及控制发射脉冲，以超低功耗的MSP430F155单片机作为系统的核心，用于控制及计算处理，并使用CPLD ispMACH4064完成了接收波形脉冲的提取和接收波形自动增益控制的功能。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。