柵控系數 的英文怎麼說
中文拼音 [zhàkòngxìshǔ]
柵控系數
英文
grid-control ratio-
The paper introduces a method of design and realization that is based on the single chip computer 8051, which adopts straight line grating sensor and realizes the three - coordinate high accuracy system of dynamic check and displacement measurement of nc machine
摘要介紹了一種以單片機8051為核心，採用直線光柵位移傳感器，實現數控機床三坐標位移高精度動態檢測系統的設計方法。In the beginning, the working principle, testing and data processing system of pdl micro - control material test machine is introduced ; then more attention is paid to the hardware system which is composed of high precision raster linear displacement sensor, high precision force sensor, the digital displaying sets, the interface equipments and the controlling circuits etc to perform the data collection and ensure the testing precision of the whole system
論文首先介紹了pdl材料拉伸試驗機的工作原理、測試及數據處理系統；接著詳細介紹了由高精度光柵線位移傳感器和壓力傳感器、數顯裝置、介面裝置及控制電路等組成的新的硬體系統，來完成數據採集，並保證整個系統的測試精度要求。We analyzed the dependence of equivalent circuit parameters of mesfet switch on material and device structure. for modeling, we designed and fabricated six set of mesfet switches with different gate width, then measured their performance and extracted switch model parameters. mesfet switch database corresponding to the mmic product line is then established, and using the dependence of switch model parameters on gate peripheral we can attain the mesfet switch performance with any gate width through parameters scaling
移相器電路採用gaasmesfet開關作為控制元件，研究了mesfet開關等效電路參數與材料和器件結構參數的關系，設計製作了不同柵寬的六組mesfet開關，並進行參數測試和模型參數提取，建立了相應于mmic工藝線的mesfet開關模型庫；根據開關模型參數隨柵寬的變化規律，可以實現任意柵寬mesfet開關的參數定標工作。It is. a big problem to fabricate the vls grating, considering its space increment varies within sub - nanometer. hence, the grating ruling engines, in u. s. a, japan or russia, for vls gratings have very complicated graduation control system. although they have fabricated practical vls grating, their costly devices do n ' t adapt to the fabricating practice in our country
針對於此，美國、日本和俄羅斯等極少數國家為光柵刻劃機設計了十分復雜的分度控制系統，雖然刻劃出了具有實用性的變柵距光柵，但其復雜、昂貴的設備不適合我國光柵加工的具體情況。A quick spectroscopic diagnostic system for the flame temperature is set up in this paper. it consists of an optic imaging system, a scanning system, a dispersive system, a photoelectricity conversion cell, operational amplifiers, a computer - based data collection system and a data processing. the temperature profile varying with the time can be quickly measured by this system
目前光學診斷由於其相應快、精度高，屬于非接觸式測量手段，在研究中得到越來越多的應用，這里要介紹的就是本文中建立的一套光學診斷系統，它由高壓燃燒室、旋鏡掃描儀、旋鏡控制器、小型光柵攝譜儀、光電轉換裝置，微弱信號放大器以及數據採集系統組成。During the process of measuring valve phase, the grating displacement sensor and photoelectric axis - angle encoder are applied to measure the displacement of valve and the angle of curving shaft respectively. their signals are sampled and imported into computer. then the three signals are compared to find the relationship of valve phases in order to offer the reliable measuring parameters for the researchers and quality controllers
在氣門相位測量中，採用光柵位移傳感器和光電軸角編碼器，分別將發動機進、排氣門位移量和曲軸旋轉位移量的變化信號通過采樣，輸入計算機，對三路信號加以比較找出氣門的相位關系，從而為設計開發人員、品質控制人員提供可靠的測量參數。Stopping equipment and auxiliary equipment : various kinds of mechanical parking equipment, parking meter, automatic fence, parking equipment control system, vehicle in and out garage management and monitoring system, parking charge system, parking measuring instrument, license plate identifying system, display and guide system of the garage door, loading lot counter, vehicle sensor, ups power supply, various kinds of indicator lights
停車設備及輔助設備：各種機械式停車設備、停車咪表、自動柵欄、停車設備控制系統車輛出入庫管理及監控系統、停車收費系統、停車測量儀表、車牌識別系統、停車庫車們顯示及導引系統、車位計數盤；車輛感知器； ups電源；各類指示燈。The common map is scanned into grid map, and then vectored in mapinfo. after vectoring, vector data are matched and the spatial coordinate data of resident points, water system and other data are gained. the coordinate of reference points in the freeway are gathered by gps, then after data processing, coordinate transition, data inputting, it turn into the freeway graph, which composes the freeway electronic map with the materials subsidiary to the freeway
將普通紙質地圖經過掃描生成柵格地圖，然後在mapinfo環境下進行矢量化生成矢量化地圖，經過矢量化數據配準，確定居民點、水系等物系的空間坐標數據；利用gps採集的高速公路控制點坐標，經過數據處理、坐標轉換、錄入，最後生成高速公路圖層，和上述高速公路附屬物共同構成了完整的高速公路電子地圖。This system provides pulse signal and direction signal to step motor driver by computer ’ s controlling step motor control card, and makes motor and guage ’ s pointer rotate. computer gets the micro displacement measured by grating measuring system via rs232 serial port, and acquires guage ’ s image by high precison ccd camera, then processes the guage ’ s image by software, including pre - processing, graying, binarization, thinning and hough transform, so as to recognize the position of guage ’ s pointer, finally calculates all kinds of precision on basis of algorithm established by national detecting rules of gauges
本系統通過計算機控制步進電機控制卡來給出步進電機驅動器需要的脈沖信號和方向信號，進而帶動電機驅動儀表指針轉動，計算機通過串口實時採集光柵測量系統的微位移信號，並且通過高精度ccd攝像機實時獲取表盤圖像數據，同時通過計算機軟體實現表盤圖像處理，包括預處理、灰度化、二值化、細化和hough變換等，最終快速識別出表盤指針的位置，並根據國家表類檢定規程所制定的演算法檢定出指針式儀表的各種精度。Bearing capacity and displacement are two main problems in the application of geotechnical engineering. based on a series of pull - out tests using three kinds of paper and a sort of window screening as geogrid, twenty - seven in limit and several in working - stress geogrid - reinforced slope model tests designed through orthogonal principle have been conducted to have obtained the relationship between the bearing capacity and four factors ( i. e. reinforcement, angle of reinforced slope, the designed - length of reinforcement and the distance between layers of reinforcement ). the law of slope lateral ( horizontal ) displacement versus to the height of slope vary with external - load was derived from the model test data, and the main factor affecting the lateral and vertical displacement of geogrid - reinforced slope was obtained through analysis
承載力（強度）和變形是巖土工程應用領域的兩大主要問題，本文以紙和窗紗布模擬加筋土邊坡的土工格柵，在一系列拉拔試驗的基礎上，以正交設計理論分別安排27個極限應力狀態和若干個工作應力狀態加筋土邊坡模型試驗，並以模型試驗獲得的數據為依據，採用誤差、極差及回歸分析方法，探討了加筋土邊坡承載力與筋類、筋長、層間距、坡角4因素的相關關系，獲得了在外荷載作用下加筋土邊坡的側向位移隨坡高的變化規律（並進行了定性解釋）和坡頂的豎向位移特性，並分析其主要控制因素。Based on laser - scanned inspecting technology, grating displacement measuring technology, close - loop servo control technology, computer real - time control and data processing technology, a bullet corre dimension optoelectronic comprehensive measuring system is presented, which is used to non - contact measurement of dimensions for the bullet core part of armor - piercing bullet
基於激光掃描檢測技術、光柵位移檢測技術、閉環伺服控制技術和計算機實時控制與數據處理技術，提出了一種用於穿甲彈彈芯零件尺寸非接觸測量的彈芯尺寸光電綜合檢測系統。Optical grating bit shift detection control system, and digital closed - loop servosystem, which controlled by the computer, can communicate mutually, exchange data and transmit control information. overall system can achieve the high accuracy position
光柵位移檢測系統和閉環伺服控制系統，是由微機來控制的，它們可以通訊，以交換數據或是傳遞控制信息，實現高精度的定位According to the following design theory : the dsp calculates in real time and produces three phases spwm waves to control the on or off of the 6 igbts in ipm respectively. ipm then inverts the commutated single phase direct current ( insulated gate bipolar transistor ) into three phases alternating current. when modulated signals of spwm are changed, the on - off time of switches also changes, so as to the voltage and frequency of output signals
本文提出了一種基於dsp （數字信號處理器tms320f240 ）的通用的三相間接變頻電源系統，利用分段同步調製法和混合查表法，實時計算不同頻率下的采樣周期、電壓幅值、輸出脈寬，產生雙極性spwm波形，經驅動放大後用于ipm （ intelligentpowermodule ）中的絕緣柵雙極型晶體管柵級驅動，以控制電源的輸出電壓和頻率，實現變頻電源的智能數字控制。Therefore, tension tests of geogrids, pull - out tests between geogrids and expansive soils or sands, the related geotechical tests of soil " s properties, and model tests of soft ground improvement, were carried out for obtaining the engineering properties, quality index of geogrids, interaction parameters of friction characteristics between reinforcement and soils, and the affecting degree of factors influencing the lateral displacement ( pile ) rate during the construction of embankment filling with ( residual ) settlement considered restrictively
本文以國內外大量研究成果為基礎，集中力量開展控制變形的特種土作填料的物理改良技術和加筋墊層在控制沉降軟基處理的作用研究，其核心是筋土界面相互作用關系。為此，進行了為確定土工格柵工程特性和尋找質量控制指標的拉伸試驗、筋土界面設計參數合理獲取的拉拔試驗及其配套土工試驗、軟基上路堤填築過程中坡腳的側向位移及其速率的影響因素的室內模擬試驗。An auto - detecting method of the gauge with pointer that is based on digital image processing technique, high precision grating technique and step motor control technique is presented. there are advantages of high precision, high efficiency and auto - detecting for apply digital image processing technique to detect precision of the gauge with pointer ; moreover, it ’ s helpful to improve system ’ s resolution when high precision grating technique is applied to measure micro displacement ; also it makes system more automatic to control step motor in computer via step motor control card
本文研究的指針式儀表的自動檢定方法是基於數字圖像處理技術、精密光柵測量技術以及步進電機控制技術的，將數字圖像處理技術用於指針式儀表的檢定，具有精度高、效率高、易於實現自動測量等優點;另外，將精密光柵測量技術用來測微位移，有利於提高系統的解析度;還有，通過步進電機控制卡來實現在計算機上對步進電機的控制，提高了系統的自動化程度。分享友人