电路的

Secondly, this paper explains the design of the hardware and software in this system, including the choice of three-phase fully-controlled bridge rectifier circuit, design of protecting circuit, burst module and detecting module, and thinking and method of programming. This paper provides the measures to handle with all kinds of disturbance factors.

其次，本论文对于系统的硬件及软件设计进行了详细的解释，包括三相桥式全控电路的选择、保护电路的设计、触发模块的设计、检测模块的设计以及编程的思想方法等，并且提出了对于实验过程中出现的各种干扰情况所给予的相应的抑制措施。

Because any reports on the active control of rotating disk haven't be seen in China up to now, and this experiment research is important, so the complete set of active control system of rotating disk are built independently. The push-pull type electromagnet is applied to control the vibration of the circular disk. The power amplifier circuit that can respond to wide scope in frequency from DC to AC is designed by improving the existing circuit. The sensor signal is first low-pass filtered, then the proportional control plus the differential control circuit easy used in practice are applied to finish the more effective control. The electromagnetism shield is used as possible to decrease the signal disturbance from the electromagnet to eddy sensor.

考虑到目前国内尚未见到有关旋转圆盘振动主动控制的相关报导以及实验的重要性，自行设计制作了一整套旋转圆盘振动主动控制系统：提出并采用推拉型电磁作动器来控制圆盘的振动；在改进现有电路的基础上，自行设计了具有较理想特性的驱动电磁作动器的功率放大器；根据实际控制环境的特点，设计了先进行低通滤波，再采用比例和实用的近似微分电路构成的控制器，并采用了电磁屏蔽来减小电磁铁对传感器的干扰，以实现更有效的控制。

The interdigitated SOI DTMOSFET's, and SOI DTMOS-based invertors and ring oscillators are also designed. By fabricating these experimental devices and circuits, a set of submicron thin film SOI CMOS and SOI DTMOS process technology, which can meet the aerospace application requirements, has been developed.

为满足航天用微电子电路的抗辐射、高速、低功耗、高可靠的要求，开展了适于超低压工作的SOI DTMOSFET的研究工作，对DTMOS器件的微观工作机理进行了分析和讨论，揭示了SOI DTMOS器件电学性能优于常规SOI MOS器件的物理本质，以及DTMOS器件与电路在航天领域的巨大应用潜力。

For 8096 controller is high CPU bandwidth and peripherals specifically chosen for control application, we integrate PWM controllers, assonated circuits and microprocessor chip for digital control into one 8096 controller, which can lower system cost and increase integration.

利用8096芯片的高运算能力以及专门用于控制领域的丰富的外设，将在线式UPS的PWM专用控制芯片及其外围电路还有数字控制所需的微处理器功能都集成到一块芯片中，这样大大的增加了电路的集成度，减少了成本。

The equations for two-conductor coupled-line Marchand baluns are derived. The analysis and systematic design procedure for multi-conductor coupled-line Marchand baluns are also presented, and verified with a few fabricated multi-conductor coupled-line Marchand baluns. Two MMIC broadband diode frequency doublers using multi-conductor coupled-line Marchand baluns are implemented to demonstrate the design procedure of multi-conductor coupled-line Marchand baluns. The MMICs achieve miniature chip areas with broadband performances in millimeter-wave regime.

二金属耦合线马逊平衡不平衡转换器的方程式推导及多金属耦合线马逊平衡不平衡转换器的分析及系统化设计流程也在此论文中被提出，并且用许多实际制作的平衡不平衡转换器做验证，此外，两个微波单晶积体电路的宽频二极体倍频器包含多金属耦合线马逊平衡不平衡转换器也用来验证此多金属耦合线马逊平衡不平衡转换器的系统化设计流程，这两个微波单晶积体电路在毫米波的频段内都达到微小的晶片面积与宽频的响应。

The selection rules for the angles of jaw clutch, the determination of the sup ply voltage for the magnet, the design of the control circuit to eliminate the so-called "striking jaw top" and the measures to reduce residual magnetism and the switching time are discussed. The code circuit designing method for the speed control of the spindle box in XHK 5140 machining centre is also described.

本文根据牙嵌式电磁离合器的使用情况，对离合器齿形角的选择原则、激磁电压的设计、消除顶齿的控制电路的设计，以及采用电容器放电消除剩磁和缩短断开时间等问题进行了讨论，最后介绍了XHK5140立式加工中心主轴用电磁离合器变速的译码电路的设计方法。

With the combination of analysis and software simulation, the operation principles of different parts of the network are analyzed. Especially, the model of the oscillator, based on negative resistance cross-coupled pair, is given. Meanwhile, the effect of different crossed-coupled pair to the oscillation circuit is also analyzed.

利用理论分析与软件仿真相结合，详细分析了基于CMOS工艺的二分之一波长驻波振荡电路各组成部分的工作原理，尤其是振荡器的重要组成部分，提供负阻的交叉耦合对，给出了相应的数学模型及分析仿真，研究了不同的MOS管对对振荡电路的影响。

Compared with the prior art, the invention has the advantages that:(1) the active neural microelectrode integrates signal collection/processing and stimulation function in the same preposed signal processing chip, which can reduce the disturbance of environmental noise, inhibit the attenuation caused by parasitic capacitance, filter polarized voltage and greatly improve the speech-noise ratio and stability of the whole microelectrode; and (2) the active neural microelectrode integrates digital logic control and stimulation circuit in the chip, so as to reduce the amount of output leads and simplify the complexity of subsequent circuits.

本发明相对于现有技术具有如下突出特点：(1)将信号的采集，处理以及刺激功能集成在一个前置信号处理芯片上，不仅减少了因为环境噪声的干扰，而且很好的抑制了寄生电容引起的衰减，滤除了极化电压，大大增强了整个微电极的信噪比和稳定性；(2)同时，将数字逻辑控制和刺激电路也集成在此芯片上，减少了输出引线的数目，简化了后续电路的复杂性。

The invention relates to a desk type drill machine for preventing drill head wreckage, comprises chassis, supporting post, operating board covered in middle of supporting post, cabinet and generator; cabinet is equipped with tension pulley pressure sensor, belt tension unit and pressure foil gage; tension pulley is compacted on driving belt of drill machine, pressure foil gage is installed on top bar of tension pulley, the pressure foil gage is in electric connection with input end of controlling circuit, output controlling end of controlling circuit is connected to power input end of generator.

本发明是防止钻头折断的台式钻床，包括底座、支柱、套在支柱中部的工作台、以及机箱和电机，机箱上设有张紧轮压力传感器，由皮带张紧装置和压力应变片组成，其中的张紧轮紧压在钻床的传动皮带上，压力应变片设在张紧轮的顶杆中，压力应变片与控制电路的输入端电连接，控制电路的输出控制端连接在电机的电源输入端中。

This thesis describes the preparation of HTS rf SQUID, the design of the readout andthe innovation of our inductively coupled tank circuit. Using this tank circuit and ourreadout, we achieved the flux white noise of 15 〓/√Hz for an HTS YBCO rf SQUIDwith the loop size of 100×100 μ〓, and a field sensitivity of 24fT/√Hz by using a 1 inchwasher flux focusor.

文中描述了rfSQUID样品制备过程和我们所研制的rfSQUID读出电路的设计思想和实现方法，给出了我们所发明的电感耦合谐振回路的特性，对于内孔为100x100 μ〓的rf SQUID样品，用这种谐振回路和我们的读出电路，白噪声可测到15μ〓/√Hz左右，用1英寸的聚焦器可获得24fT／√Hz的磁场灵敏度。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。