計數柵 的英文怎麼說
中文拼音 [jìshǔzhà]
計數柵
英文
counting grid-
I designed a measuring system which can measure the anode current 、 anode voltage 、 grid current and grid voltage at one time. working at manual mode the system can sever as a measuring instrument
根據要求,設計一個場發射參數的測量系統,此系統,工作在手動方式下可以測量出某一時刻點的場發射的陽極電流、陽極電壓、柵極電流、柵極電壓。Assuming the blades conduct a planar simple harmonic motion, the flows in vibrating cascades in the case of different oscillating amplitudes, different reduced frequencies and different torsional centers are computed respectively for two blade profiles. according to comparing flow calculations at different oscillation modes, the influence of the oscillation parameters " selection on aeroelastic performances of cascades is analyzed
假定葉片做平面簡諧運動,針對兩種葉型分別計算了不同振動幅度、摺合頻率及扭心位置時的振動葉柵流場,根據各種振型下流場計算結果的比較,分析了振動參數選取對葉柵氣動彈性性能的影響。First, it was taken that a discuss about the effects of geometry parameters of each piezocrystal on direction parameters ( main lobe width, side lobe amplitude, elimination of grating lobes ), amplitude of ultrasonic pressure, element viberation pattern, mutual radiation among elements, efficient test regions, ability to keep accurate and near - field distance and so on. based on the direction of ultrasonic field in ulpa deduced by ourselves. in addition, on the base of integrating all kinds of factors, it was put forward that the principle and method for optimized design of geometry parameters of piezocrystals in ulpa transducer, and its design programme and interface were compiled
首先在推導超聲相控線陣換能器聲場的指向性的基礎上,就各個晶片幾何參數對指向性指標(主瓣寬度、旁瓣幅度、消除柵瓣) 、聲壓幅值、陣元振動模式、陣元間互輻射、有效檢測區域、精確控制能力、近場長度等方面的影響進行了論述,並在綜合各方面影響的基礎上,提出了晶片幾何參數優化設計的原則和方法,編寫了設計程序和界面。The software design of synchronism display for capacitive transducer electronic digital display calipers
容柵數顯卡尺同步顯示軟體設計The paper presents several aspects in partition rectification and visualization of raster image. adopt technology of visualization for scientific calculation, vector diagram of deformation 、 contour chart of deformation and drawing of three - dimensional are realized. delaunay tin in view of deformation feature is constructed on base of selected grid control points and methods and mathematical models for partition rectification are realized based on the delaunay tin. software of geometric rectification for large scales are realized and applied in project
本論文針對柵格影像的變形可視化及分塊糾正展開研究,取得了以下幾方面的研究成果:一、採用科學計算可視化技術,繪制變形矢量圖、變形等值線圖和三維效果圖,實現了柵格影像變形特徵的可視化;二、提出了在格網控制點( gcp )數據基礎上選擇性構造顧及變形特徵的delaunay三角網,並基於構造的三角網實現了分塊糾正的方法和數學模型;三、採用vc編制了影像幾何糾正軟體,實現大比例尺掃描地形圖的糾正,並在工程中得到應用。In the part of software design, the initialization of ethernet controller and the process in which ethernet packets are received and sent are studied thoroughly. after analyzing the embedded tcp / ip protocols, the interface card software which can control the whole card, receive and send ethernet packets is completed. lastly, the concept of windows network application based on winsock is presented
在介面卡軟體設計中,重點研究了以太網控制器的初始化和以太網數據包的收發過程,詳細分析了嵌入式tcp / ip協議的實現方法,並編寫了光柵傳感器介面卡軟體,完成了介面卡的整體控制和網路數據的收發。By comparing and analyzing the advantages and disadvantages of three kinds of voltage reference circuits, type of current density ratio compensation 、 weak inversion type and type of poly gate work function, a cascode structure of type of current density ratio compensation is chosen to form the core of voltage reference circuit designed in this paper. applying the negative feedback technology, an output buffer and multiply by - 2 - circuits are designed, which improve the current driving capability
然後通過比較和分析電流密度比補償型、弱反型工作型和多晶硅柵功函數差型三種帶隙電壓基準源電路結構的優缺點,確定了電流密度比補償型共源共柵結構作為本設計核心電路結構,運用負反饋技術設計了基準輸出緩沖電路、輸出電壓倍乘電路,改善了核心電路的帶負載能力和電流驅動能力。In large dimension measurement techniques, on the two - dimensional optical microscopy work platform displacement signals collection, the introduction of raster feet to achieve large dimension measurements designed raster signal acquisition circuits, a collection of analytical studies of the key circuits, the corresponding solutions, and discussed work platform displacement signals, image data and the actual dimension ; meanwhile driving mechanism designed electrical circuit, laying the foundation for the measurement of two - dimensional work platform automatically
在超屏幕尺寸測量技術中,關於二維光學顯微工作臺位移信號採集,採用了光柵尺來實現超屏幕尺寸測量,設計了光柵信號採集電路,分析研究了採集電路中的關鍵性問題,提出相應的解決方案,並討論了工作臺位移信號、圖像數據與實際尺寸的關系;同時設計了電機驅動介面電路,為二維工作臺自動測量奠定基礎。A new algorithm for computing quenching pulse width of double grid air counter
雙柵極空氣計數器猝熄脈寬演算法Simultaneously with the micro - displacement started the processe of the grating sensor measuring the displacement and image collection of the system. the grating sensor ( length gauge ) measures the displacement of the dial gauge with surveying rod. it is delivered to the computer with a block k220 in real time and the dial image by ccd camcorder is shown on the computer screen with the image collection card in real time
在實現微量進給的同時,啟動系統的光柵位移測量過程和圖像採集過程,光柵傳感器(長度計)測得指示表測桿的位移量,由計數卡ik220實時傳送給計算機,由ccd攝像頭攝取的表盤圖像經圖像採集卡在計算機屏幕上得以實時顯示,最後通過對指示表指針位移計算處理與光柵傳感器測量的位移量進行比較,得到指示表受檢點的示值誤差。The hardware of the system is made up of p89c61x2ba as main processor, usbn9604 as usb interface, grating signal - processing circuit, xc95108 as signal subdivision, sensing, counter circuit and so on
硬體部分以p89c61x2ba為控制核心,包括採用usbn9604介面晶元的usb介面電路,光柵尺輸出信號處理電路,以xc95108為主的信號細分、辨向和計數電路等。In the part of hardware design, the grating signal processing module is designed in a cpld device. the methods of realizing the functions of filtering, four - subdivision, sensing, counting and mcu interface are described in detail
在介面卡硬體設計中,採用cpld器件設計了光柵信號處理電路,詳細論述了光柵信號處理電路中濾波、四細分、辨向、計數和與單片機介面等功能的實現方法。Using the sensor as calculating transporting of corn and soybean, the pecision rate can be 100 %. up to now, the sensor has been used on a meter study equipment more than one year
就目前手工製作所達到的柵格密度而言,用於玉米、大豆的排種計數,準確率為100 。The main task including : when the raster ruler and axis - angle coder move forward or backward, they will bring pulse signals which are length signals and angle signals. these signals will be sent to signal processing circuits to be pretreated. then the signals will be sent to direction differentiation circuits to differentiate the directions
主要完成以下任務:把光柵尺和軸角編碼器前進或後退產生的長度信號和角度信號,送信號處理電路進行處理,再送鑒相倍頻電路進行鑒相處理,送單片機計數,由另一片單片機把計數的結果數據經過串列通訊電路送至pc主機去進行處理。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。Base on the analysis of the grating linear displacement measurement theory, the measure errors especially the subdivision error of the grating scale, this paper focuses on the theory of switch and merge of dual grating scales ’ signals, builds the design criteria of high speed high precision displacement measurement by using dual grating sales, designs the switch picking reference with high precision and fast switch and merge method, analyses the errors brought in by switch and merge of the duals grating scales
在分析光柵線性位移測量原理、光柵尺的測量誤差尤其是細分誤差的基礎上,本文重點研究雙光柵尺切換與合成的原理,建立了基於雙光柵尺高速高精度位移測量的設計準則,根據設計準則設計了切換基準拾取方法以及快速切換與合成方法,分析了雙光柵計數值切換合成的誤差。Double grid air counter ( dgac ) is a better useful nodestructive testing tool that was developed and researched in recent years and its advantage is real - time test by the emission of the low - energy electrons from the microcrack of the metal material
雙柵極空氣計數管是近年來開展研製的一種無損檢測的有力工具,其特點是可根據金屬材料微裂紋處低能電子的發射實現實時檢測。According to the problem that grating scale hardly achieves high resolution when in high speed and the characteristic of high speed high precision system, this paper presents a cross dimension displacement measuring method based on dual grating scales dual measuring, the counting values of dual grating scales switch and merge
針對高速高精度定位系統的運動特性及光柵尺測量高速位移時難以實現高分辨力的問題,本文提出了適合高速且實現系統末端點高分辨力位移測量的新方法基於雙光柵尺雙重計數、切換與合成的跨尺度位移測量方法。Troubleshooting of the unstable digital display for the model 722 grating spectrometer
722型光柵分光光度計數字顯示不穩定的原因及調修After the discussion of the switch reference, the characteristic and regularity of the switch and merge by dual grating scales, this paper designs the hardware circuit to execute the method of dual grating scales ’ dual measuring, count values switch and merge, designs different circuit module of the dual grating scales ’ s signal process based on fpga, such as the quadruple module, the speed identify module, the switch module, the merge process module
經過對雙光柵計數切換基準、切換與合成特徵和規律的探討,本文設計了實現雙光柵尺雙重測量、計數值切換合成法的硬體電路,主要通過可編程晶元fpga ,設計了雙光柵尺信號處理的各電路模塊,如雙光柵尺信號四倍頻辨向模塊、速度判斷模塊、切換模塊、計數值合成處理模塊。分享友人