The mechanism is composed of two ball screws, U-type linear rails, linear bearings and flexible couplings. The permanent magnetic direct current motors are used as actuators. The rotary encoder is used to measure the angular position of the DC motor. The digital controller is implemented on the personal computer and a motion control card (EPCIO-6000). The objective of this thesis is to realize precise positioning control using a real-time motion control system on an X-Y table.

機械結構包括有滾珠導螺桿人人艹人人莫、U型線性滑軌組哪里可以看免费的黄色网站、線性軸承及可撓性連軸器等jlzzjlzz无码中国；致動器是采用永磁式直流馬達(permanent magnetic direct current motor)欧美丰满大乳大屁股流白浆爽；感測器是使用光學式旋轉(zhuǎn)型編碼器來量測馬達旋轉(zhuǎn)的角度www.1区；控制器則是以個人電腦為控制核心人妻啪啪视频，搭配運動控制軸卡(EPCIO-6000)所組成。

This design separately uses series linear constant voltage circuit, series regulate constant current circuit and the feedback type contravariant circuit to design direct current constant voltage power supply, direct current constant current power supply and DC-DC converter.

本設計分別用串聯(lián)型線性穩(wěn)壓電路800AV凹凸视频免费观看网，串聯(lián)調(diào)整式穩(wěn)流電路和反饋式逆變電路設計直流穩(wěn)壓電源国产系列熟女丝袜喷水，直流穩(wěn)流電源和DC-DC變換器。

Its thought is to change the model of the asynchronous motor through the coordinate, make it become direct current motor model, divided the electric current vector of the stator into according to the weight of two pieces of direct current with directional magnetic field of the rotor and controls, realize magnetism coherent and torque solve lotus root control , in the hope of the control result of the direct current reaching machine.

其思想就是將異步電動機的模型通過坐標變化欧美又粗又大精品视频，使之成直流電動機模型一级毛片免费视频，將定子電流矢量分解為按轉(zhuǎn)子磁場定向的兩個直流分量并分別加以控制，從而實現(xiàn)磁通和轉(zhuǎn)矩的解藕控制欧美性爽交大全，以期達到直流電機的控制效果欧美a级v片一区二区。

Direct current is rejected: When the electricity owes and presses the trouble in the city, it will be too automatic to supply power disconnectedly at all that the direct current of connecting with end of direct current is rejected, direct current rejects and can provide the signal while discharging, if discharge to the terminal voltage, will change over to and prepare against the electricity to run in system, while closing to stopping discharging the voltage, the system will provide the signal of warning.

直流屏：在市電欠壓或故障時，與直流端相聯(lián)的直流屏就會自動毫無間斷地供電jjzzwww，直流屏放電時會給出信號18禁网站。，如果放電至極限電壓，系統(tǒng)就會轉(zhuǎn)入備電運行美女18禁止看的扒开奶罩网站，在接近終止放電電壓時亚洲鲁在视频在线观看，系統(tǒng)將給出警示信號。

This thesis calculates emphases the excitor circult of AC excitor .but the calculate of excitor circult must solve two problem: how to caculate the output AC phasic potential, phasic electric current and the capacity of AC excitor basing on the main generator direct current excitating voltage and direct current excitation current ;how to caculate the armature feedback, power factor and required ampere-turn of AC exciter.

本文重點對交流勵磁機的磁路進行計算性色av免费精品观看，但磁路計算先要解決兩個問題：如何根據(jù)主發(fā)電機給定的直流勵磁電壓和直流勵磁電流計算出交流勵磁機的輸出交流相電勢俄国av在线播放，相電流及交流勵磁機容量；如何計算交流勵磁機的電樞反應com视频自拍网，功率因數(shù)及其所需的安匝數(shù)日本一本之道高清不卡免。

Then introduce the principle of work and the construction characteristic. This thesis calculates emphases the excitor circult of AC excitor .but the calculate of excitor circult must solve two problem: how to caculate the output AC phasic potential, phasic electric current and the capacity of AC excitor basing on the main generator direct current excitating voltage and direct current excitation current ;how to caculate the armature feedback, power factor and required ampere-turn of AC exciter.

本文重點對交流勵磁機的磁路進行計算，但磁路計算先要解決兩個問題：如何根據(jù)主發(fā)電機給定的直流勵磁電壓和直流勵磁電流計算出交流勵磁機的輸出交流相電勢欧美熟女精品视频，相電流及交流勵磁機容量男人的天堂最新网址；如何計算交流勵磁機的電樞反應，功率因數(shù)及其所需的安匝數(shù)人人曰。

This dissertation theoretically demonstrates the feasibility to achieve constant direct current-stimulation-circuitry under microampere , bring forward design scheme software and hardware system using in cellular electrical stimulation. In order to further quantitatively research on direct current-stimulation and ascertain the best intensity and density and stimulative current , the quantitative and qualitative analyse for gained diagnostic data are also been discussed in this paper.

本文正是從該理論基礎出發(fā)亚欧综合在线，論證了實現(xiàn)微安級直流電刺激的離體組織細胞生長培養(yǎng)實驗系統(tǒng)的可行性，提出了用于刺激實驗的軟硬件系統(tǒng)的開發(fā)放案黄页网在线观看免费视频，并對采集數(shù)據(jù)的定量和定性的分析作了初步的探討无码AV免费网站，希望通過實驗能夠初步確定適合該組織細胞生長培養(yǎng)的最佳刺激電流和最佳刺激時間。

By using the measure and research of the emulating two-port network parameters of using direct-current analysis and figure value output function of sinusoidal steady state circuit in circuit emulating sofeware PSPICE8.0,the measune and reseavch have solved the problem of the measuring purely resistive network of simple and odd one in traditional experimient,and also brought about the analysis of alternating current and direct-current for two-port network of any one complex and measure and research of YJULIA视频一区、Z国产A级片免费视频、T、...

利用電路仿真軟件PSPICE8.0中直流分析及正弦穩(wěn)態(tài)電路的數(shù)值輸出功能仿真二端口網(wǎng)絡參數(shù)的測量與研究九九一免费视频，解決了傳統(tǒng)實驗中只能測量簡單欧美一级精品视频二区、單一的純電阻網(wǎng)絡問題，實現(xiàn)了對任一復雜二端口網(wǎng)絡交成年男人深夜在线视频播放、直流的分析及Y观看视频高清无码黄色网站免费下载视频、Z、T91av超碰在线观看、H等參數(shù)的測量與研究smag在线观看，為更多的不易完成的傳統(tǒng)實驗以及復雜電路的分析研究開辟了一條新路。

Is coaxial actuates a alternator based on Simens PLC and its the network direct current velocity modulation system by a direct current motor, the direct current motor to actuate with the direct current velometer and to be loaded with revolves the encoder examination rotational speed; The generator electricity generation voltage after the numeral demonstrated the table demonstrated and delivers to the PLC simulation quantity load module.

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Because of its fast and flexible controllability, the voltage source converter based high voltage direct current will be widely applied in power systems, so it is of practical significance to study the dynamic performance of VSC-HVDC in complicated power grids. The quasi steady state response of flexible HVDC system can be simulated in power system simulation software PSS/E.

柔性直流輸電系統(tǒng)(voltage sourced converters high voltage direct current，VSC-HVDC)因其快速靈活的可控性在電力工業(yè)中將有越來越廣泛的應用xxxxx欧美性爱，研究其在復雜電力網(wǎng)絡中的動態(tài)性能具有工程實際意義欧美性爱AA级，應用電力系統(tǒng)仿真軟件PSS/E可模擬柔性直流輸電的準穩(wěn)態(tài)響應。