The Periscope Drawtube will be bent because of the water resistance in sailing and this bend will cause the error of star measurement. Due to its especial structure, contactless measurement is the only way to measure its bend degree. First this paper introduces the method by linear array CCD based on structure and light path; Second it expatiates linear array CCD work principle and driving scheduling with example of TCD1501C and the driving circuit by CPLD. The output signal of linear array CCD includes common disturbance so the differential amplifier is needed. In order to make the signal adapt to computer processing, a threshold circuit with Schmitt characteristic and the data process following threshold are given. At last, some key problems in application are given.

潛艇潛望鏡的鏡筒在航行時(shí)受到水的阻力會(huì)產(chǎn)生彎曲變形亚洲一级网站，這種變形會(huì)造成潛艇對(duì)星體測(cè)量的誤差午夜亚洲视频；由于鏡筒結(jié)構(gòu)的特殊性日韩欧美在线视频一区，對(duì)其彎曲程度的測(cè)量只能采用非接觸方法欧美湿身诱惑超碰在线；首先從結(jié)構(gòu)和光路方面介紹采用線(xiàn)陣CCD作為檢測(cè)元件實(shí)現(xiàn)對(duì)鏡筒彎曲程度的測(cè)量免费费黄色真人视频；其次以東芝公司的線(xiàn)陣CCD（TCD1501C）為例闡述了其工作原理及驅(qū)動(dòng)時(shí)序的控制要點(diǎn)大学性爱视频在线，并介紹了基于可編程邏輯器件的線(xiàn)陣CCD的驅(qū)動(dòng)電路；線(xiàn)陣CCD輸出的信號(hào)中含有共模干擾五月天婷婷网亚洲综合在线，必須采用差分放大器將其抑制黄色最新在线免费；為將信號(hào)轉(zhuǎn)化為適合計(jì)算機(jī)處理的數(shù)字信號(hào)，文中給出了有一定實(shí)用價(jià)值具有施密特特性的二值化處理電路及二值化后的數(shù)據(jù)處理過(guò)程国产国产成人久久精品；最后闡述了在實(shí)際使用中的一些關(guān)鍵問(wèn)題久久播天天翘天天综合网。

The computer separately connects and controls the I/O end and A/D converter; the I/O end connects and controls the X, Y axis driving circuit and the semiconductor laser; the X, Y axis step-by-step driving circuit connects and controls the X, Y step-by-step electrical machines to control the dimensional platform; the beam of the semiconductor laser passes through the focusing drawtube with 0.1mm diameter to form the facula with the diameter less than 0.1mm; the facula irradiates on the detector surface of the XY dimensional displacement platform to produce the corresponding electric signals; the detector surface connects the A/D converter through the amplifier; the electrical signal is amplified and is converted into the data signal by the A/D converter and is sent to the computer for processing.

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What this paper finished mainly work as follows: Five-phase hybrid step motor driver system with fixed-chopping frequency and constant total current driving is fully described. Mathematical model of the system, included the current control circuit, power driving circuit and five-phase hybrid stepping motor is established. The steady modeling of the system is established and studied. Based on the steady modeling of the system, dynamic modeling of the system is studied and single step response characteristic is constructed with MATLAB/Simulink. The simulation results, which is certified by the theory analysis, coincide with the theory analysis.

本文主要完成的工作包括幾個(gè)方面：對(duì)五相混合式步進(jìn)電動(dòng)機(jī)恒頻斬波恒總流驅(qū)動(dòng)系統(tǒng)進(jìn)行了完整的描述欧美性猛交XXXX三人；建立了包括電流控制電路、功率驅(qū)動(dòng)電路以及五相混合式步進(jìn)電動(dòng)機(jī)在內(nèi)的恒頻斬波恒總流驅(qū)動(dòng)系統(tǒng)的完整的數(shù)學(xué)模型美女裸体污污18禁免费APP；基于MATLAB/Simulink建立了恒頻斬波恒總流驅(qū)動(dòng)系統(tǒng)穩(wěn)態(tài)仿真模型，并進(jìn)行了仿真免费视频高清日韩精品视频在线播放；在建立其穩(wěn)態(tài)仿真模型的基礎(chǔ)上污污在线视频导航，對(duì)動(dòng)態(tài)模型進(jìn)行研究，并借助于MATLAB/Simulink工具建立了恒頻斬波恒總流驅(qū)動(dòng)系統(tǒng)單步響應(yīng)特性的仿真模型并對(duì)其單步響應(yīng)特性進(jìn)行了仿真研究欧美性生活17-18，仿真結(jié)果與理論分析相符黄片视频在线观看2021。

The controller includes multi-channel switching circuit, interface and conversation circuit, input and output circuit, manual button control circuit, LCD driving circuit, real-time clock circuit, preparedness store circuit, keyboard processing circuit and dial switch circuit.

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The chip consists of a power mos, mode select circuit, driving circuit, and two series of controller circuit. The controller consists to the active current sensing circuit, sample and hold circuit, hysteresis current comparator, voltage to current converter, error amplifier and non-overlap circuit.

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The electro-optical device includes, in a peripheral area, image signal lines which run from an external circuit connection terminal to a sampling circuit detouring a periphery of a data line driving circuit, and a vertical conducting terminal which is laid in a second side of the TFT array substrate intersecting the first side in the peripheral area observed from the sampling circuit and which electrically conducts to a counter substrate.

電光裝置，在周邊區(qū)域具有從圖像信號(hào)端子迂回繞過(guò)數(shù)據(jù)線(xiàn)驅(qū)動(dòng)電路的周?chē)竭_(dá)采樣電路的圖像信號(hào)線(xiàn)和在周邊區(qū)域中從采樣電路看在與第1邊相鄰的一個(gè)基板的第2邊附近配置的男人女人插动态、實(shí)現(xiàn)與另一基板側(cè)的電的上下導(dǎo)通的上下導(dǎo)通端子午夜黄色精品视频在线播放。

When we design the IPM circuit ,we should design such main sections:the driving circuit , the buffer and absorption circuit , the protection circuit.

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This paper will emphasize on analyzing these two problems, and make a driving board with TLP250, this driving circuit can drive four IGBTs.and its driving signal is produced according to the requests, each driving signal is separated rightly with only one power supply, this circuit can also prevent from overflowing or short-circuit and keeping bridge arm from connecting directly.

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Also, we select the signal collecting circuit of three output polars, the coupling circuit using capacitance and resistance, the alternating amplify processing circuit, the positive feedback retardation comparsion, the driving circuit of output current and the stabilization voltage supply circuit.

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The hardware circuit is made up by microcomputer controlling circuit, motor driving circuit, wire-feeding speed regulating circuit, arc welding power source main circuit, as well as the isolating, sampling, welding state identification circuit.

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