查询词典 bridge circuit

This dissertation introduces the whole scheme、the hardware electro circuit design and software design, the result of experiment on salinometer is preferred at the end of the dissertation. Salinometer is base on SOPC technology, and use digital technology to design circuit: the excitation source for balance bridge is generated by digital method, its shape、amplitude and frequency can be control by digital signal, the standard branch of bridge is composed of three digital-analog-conversion, and uses the method of successive approximation to regulate the balance of bridge.

盐度计以SOPC技术为基础，通过数字化方式设计测量电路：电桥的激励源由数字化方式产生，激励源的波形、幅值和频率等可由数字量控制；平衡电桥标准支路由3个数模转换器组合实现，测量时以逐次逼近的方式调整电桥的平衡度；检测电桥平衡度的高灵敏度数字检流计同样以数字化方式设计，它的增益由程序控制，将电桥的输出电压数字化，以软件判断电桥平衡度。

This paper introduces the realization method of a UWB antipodal modulation generator with LCR to be driven by H bridge circuit of high speed MOSFETS.

而用高速 MOSFET管构成的 H桥电路驱动大电流辐射天线可产生超宽带脉冲信号，并能完成信息的正反调制，对电路用 Pspice8。

For carrying out a small physical volume and high reliability of the motor driving and control,by using HIP4081 chip and ALN hybrid integrated technology,a hybrid integrated technology H bridge circuit based on HIP4081 is designed to control bidirectional circumrotation and speed regulation of the motor.

摘 要：为了实现小体积、高可靠的电机驱动与控制，利用HIP4081专用芯片和ALN厚膜混合集成技术，设计一种基于HIP4081的厚膜H桥电机驱动电路，完成了H桥式驱动电路对电机双向转动和调速的控制。

The engine main circuit have to be gurranteed drawing the torque of electric motor and rotation speed wholly to do regulateing of independence ,But also possess extensive setting range SS7's mould electric locomotive adopts Quan Kongqiao and semi bridge accuseeing series connection to make up the monophase bridge style commutation electric circuit ,The coil power supply is encouraged against the stringtrain by the electric motor the drawing armature to 3 parallels operation ,Still there is an excitation commutation bridge ,He encourages the coil power supply with 3 electric motors drawing together to the series connection ,Moreover has one another accuses the regulating action .

机车主电路必须保证牵引电动机的转矩和转速都可作独立的调节，而且要有宽广的调节范围。SS7型电力机车采用一个全控桥和一个半控桥串联组成单相桥式整流电路，向3台并联工作的牵引电动机电枢与串励绕组供电，还有一个励磁整流桥，向串联在一起的3台牵引电动机他励绕组供电，并具有相控调节作用。可以实现机车无级调速和无级削磁。SS7型电力机车采用再生制动方式，再生制动时，牵引电动机作直流发电机工作，并且将电能馈送回接触网，此时电力机车相当于一个移动的发电站。

The method is to draw incident power and reflection power of radar system through directional coupler and bridge circuit,and carries out pretreatment for gathered data with micro control unit,then calculates standing wave ratio.

文中提出一种驻波比在线测试方法，该方法通过定向耦合器和电桥电路将雷达系统的入射功率和反射功率提取出来，然后用单片机对所采集到的数据进行预处理，从而计算出驻波比。

This invention discloses a duplexer and a multiplexer of the communication system and a method to realize them on a PCB circuit, which applies a 3db bridge and a low pass filter to constitute a hopstreet duplexer without waste band channels, in which, the signals are shunted and combined by the design of the circuit structure and power distribution of the 3-db bridge and phase offset function, the band filter of the low pass filter and the reflection function of a stopband to make up of a costless duplexer in theory to merge the two channels of different frequencies and reduce loss to increase volume and working bandwidth, then a multiplexer is formed by cascading multiple duplexers.

本发明涉及通信设备，公开了一种通信系统双工器和多工器以及双工多工方法，使得双工器和多工器能够在PCB电路上实现，并且体积小、损耗小、成本低、容量大。本发明中，采用三分贝电桥、低通滤波器构成无损耗频带信道合路的双工器，其中通过电路结构的设计并利用三分贝电桥的功率分配和相位偏移功能将各路信号进行分路和组合，利用低通滤波器的频带滤波和阻带反射功能联合三分贝电桥构造一个理论无耗的双工器，使两路不同频率的信道合路，降低的损耗、提高容量和工作带宽。通过多个上述双工器的级联构成多工器。

For transformers, circuit breakers to contact the two into line within the circuit breaker for the bridge connection, contact the circuit breakers in the two into line outside the circuit breaker for the bridge connection.

针对变压器，联络断路器在两个进线断路器之内为内桥接线，联络断路器在两个进线断路器之外为外桥接线。

Third chapter mainly elaborates the measure bridge module"s composition and the design of its transfermation circuit , the strain foil"s temperature drifting and its the solution method, the measuring accuracy influence of long wire in electric bridge"s long-distance measuring and the method research,the research and design of DC strain bridge Auto-Balance and Auto-Calibration methods, the bridge"s electric source design as well as the measuring accuracy influence and solution research of bridges electric source.

第三章主要阐述了测量电桥模块的组成及其变换电路的设计，应变片温度漂移及其解决方法，电桥远距离测量长导线对测量精度的影响及方法研究，电桥自动平衡方法和自动标定方法的研究与设计，桥源的设计及桥源对测量精度的影响及解决方法研究。

Factor, decide at the pack head to go to Xian to build 1 lately sets up a railroad, this engineering is a pair of track circuit with total goods, design soon the 250 Kms/h , in set up of yellow river especially big bridge being located on this circuit, cross over yellow river length to reach to a 3912.89 ms, in especially the construction of the big bridge, measure the work show of is importance, relate to whole bridgeses of run-through, measure in use the whole station instrument and intelligence calculator, carry on a precision to measure to establish to the point, come to a to show Zhao in actually the work of effect, and speed construction progress, economized cost to create a performance.

为了适应经济的发展，进一步的开发大西北，也为了缓解内蒙古包头及东胜地区煤炭资源外运的运力紧张问题，结合当地的经济技术地质等因素，决定在包头至西安修建一条新建铁路，本工程为双线客货共轨线路，设计时速250Km/h，在建的黄河特大桥位于本线路上，跨越黄河长度达3912.89m，在特大桥的建设中，测量工作显的尤为重要，关系到全桥的贯通，测量中使用全站仪及智能计算器，对点位进行精确测设，在实际工作中达到了显著的效果，而且加快了施工进度，节约了成本创造了效益。

The one-cycle control equation and control circuit in three-phase bridge is similar to the three-phase three-wire system,the control equation and control circuit in N-phase half-bridge is mainly set up through analysis to the circuit.

有源电力滤波器是一种可动态地补偿谐波和无功电流的电力电子装置，四桥臂三相四线制APF可用于三相四线系统的谐波和无功电流的补偿。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。