轉換計數器 的英文怎麼說

中文拼音 [zhuǎnhuànjìshǔqì]
轉換計數器 英文
event counter
  • 轉 : 轉構詞成分。
  • 換 : 動詞1. （給人東西同時從他那裡取得別的東西） exchange; barter; trade 2. （變換; 更換） change 3. （兌換） exchange; cash
  • 計 : Ⅰ動詞1 （計算） count; compute; calculate; number 2 （設想; 打算） plan; plot Ⅱ名詞1 （測量或計算...
  • 數 : 數副詞（屢次） frequently; repeatedly
  • 器 : 名詞1. （器具） implement; utensil; ware 2. （器官） organ 3. （度量; 才能） capacity; talent 4. （姓氏） a surname
  • 轉換 : change; transform; convert; switch
  • 計數 : count; tally; counting計數卡 numbered card
  1. Based pc, d / a convertor and 2 - dimension galvanometer scanning system, laser marking control system is built. coordinate data scanned and kept in the computer are transformed into the analog signals by d / a converter, then control the galvanometer to deflexion

    基於pc 、 d / a轉換器和二維振鏡掃描系統搭建激光打標機控制系統，將存儲在主控計算機的掃描坐標點的坐標數據通過d / a轉換，將數字信號轉換成模擬信號來控制振鏡偏轉。
  2. It uses binary counters for the conversion of the multiplicand from parallel to pulse-train form.

    它採用二進制計數器以把被乘數由并行形式轉換成脈沖序列形式。
  3. To utilize the advantages of dsp chips, the system should be computing sources economical. according to digital signal processing theory, the poly - phase fir can help reduce the workloads of the ddc / duc. therefore, adding the complex carrier mixers, the channelization system ( a method of using a single wideband facility to transmit many relatively narrow - bandwidth signals. by subdividing the frequency spectrum used in the wideband channel ) can be formed utilizing the characters of fft

    為了使開發出的軟體可以適用於高速dsp器件開發，節省系統資源，課題首先從數字信號處理的理論進行分析，得出可以利用抽樣率轉換的數字濾波器的特點，即多相濾波實現數字上下變頻計算負擔的減小，之後進一步將多相濾波器與頻譜搬移部分結合，通過公式的推導，得出可利用快速傅立葉變換的特點實現多路信號的通道化發射和接收的處理模型。
  4. In addition, make out in detail the design on inner combination logic and time logic of fpga, including series - parallel conversion, data selector, counter, flip - latch, timer, encoder, etc. at one time, not only pursuit flow of the data gathering system is illuminated, but also make use of in reason and effectively inner ram resource of fpga and build it in ping - pong framework

    另外，詳細的介紹了fpga內部的組合邏輯和時序邏輯的設計方案，包括串並轉換、數據選擇器、計數器、鎖存器、定時器、譯碼器等。並闡述了數據採集系統的工作流程，而且合理有效地使用了fpga內部的ram資源，將其構建成乒乓式結構。
  5. D / a conversion chip and isolation amplifiers are used to obtain the comparative levels required by isolation channels, which could be set with actual requirement ; it can enhance flexibility of the module. otherwise, four - channel isolation signal sources are exported using d / a conversion chip and isolation amplifiers as well

    另外還利用d / a轉換晶元和隔離運算放大器輸出四路隔離信號源，該隔離信號源能與隔離比較電平通過繼電器進行程式控制切換，這樣擴展了該計數器模塊的功能。
  6. Methods for testing the performance of dust particle counter - calibration for sizing particle

    塵埃粒子計數器性能試驗方法轉換靈敏度
  7. The simulation shows that both pulse - swallowing counter and d / a converter ' s working frequency reach 330mhz

    模擬結果顯示，吞脈沖計數器及d a轉換器等器件的工作頻率均達到了330mhz 。
  8. There is difference frequency measurement requirement for every part of pid regulating, difference between dynamic quality and static quality in response time and accuracy. according to these, it use the interrupt functions and high - speed counter of the simens s7 - 200 plc cpu226 basic unit and some peripheral circuit to measure frequency ; in software designed, the procedure frame of hydraulic - turbine governor and disperse process of parallel pid are analyzed, an improved pid algorithm is adopted to realize a pid regulation mode with variable structure and parameters ; the mechanical liquid - pressure system of the hydraulic - turbine governor is with electric - hydraulic converter unit of step motor. according to the drive character of five phase of response step motor, a variable frequency regulated voltage driver unit is designed in order to realize interface between plc and driver of step motor

    本文利用s7 - 200plc自身的特點設計了頻率測量單元，根據pid調節各個環節的特點，以及調速器動態特性、靜態特性對頻率測量的實時性和精度要求的不同，利用s7 - 200plc基本單元中內置的高速計數器以及相應的外圍放大整形、分頻電路，實現了水輪發電機組頻率的測量；在軟體上，對微機調速器的整個程序框架、並聯pid的離散化過程進行了分析，選用改進的pid演算法實現了變參數、變結構的pid調節模式；調速器的機械液壓隨動系統具有步進電機電液轉換元件，採用五相反應式步進電機，根據其驅動特性設計了變頻調壓驅動器，實現plc與步進電機驅動器之間數字介面。
  9. The counter has the ability to switch from one mode to the other without altering the number contained in the counter.

    這種計數器能從一種方式轉換為另一種方式，但計數器中的數字保持不變。
  10. In the counting system, a semiconductor laser emitter is used as the light source, point laser beam produced by optic system, reflection of part transferred into electric signal by photoelectric triode, and scm system as the counter

    採用半導體激光發射器作為光源，經過光學系統形成的最小激光束照射器件，反射光由光電三極體進行光電轉換，計數控制使用單片機系統。
  11. Further, in the encoder when the incoming block is intercoded, an algorithm is applied to predict which dct coefficients may become zero after a subsequent quantization operation, and only dct coefficients that may not become zero are computed in performing the dct

    再者，在該編碼器中，當輸入區塊是交互編碼模式，則應用一種計算方法來預測經由后續的量化運算后那一些離散餘弦轉換系數可能變為零，而只有那些可能不會變為零的離散餘弦轉換系數會用在執行離散餘弦轉換的計算中。
  12. A novel high gain opto - electron detecting amplifier is proposed. to resolve the problem that weak traditional amplifiers could n ' t amplify signal effectively, this type of arnplifier is designed and elaborated here

    本文提出了新型高增益光電轉換放大器的設計，在硬體上解決了光電信號轉換倍數小，信號弱的缺點，對電路組成模塊進行了詳細分析和闡述。
  13. The same problem occurs at the computer output, where it is often necessary to convert numerical output data form the computer into mechanical displacements or analog - type electrical signal

    在計算機輸出一樣的問題發生，轉換用數表示的產量數據在哪兒經常是必需的形成計算機進機器的排水量或模擬類型電信號。
  14. If the received matrix is to be outputted to the first type of transform circuit, the first counter writes each matrix element in a particular dual port memory assigned to the quadrant of the matrix element

    假使接收的矩陣將被輸出至第一型式轉換電路，那麼第一個計數器將收到的每一個矩陣元素寫入對應到某一矩陣四分之一象限的特定之記憶體。
  15. The precision amplifier and sixteen bit analog / digital ( a / d ) convertor ad7677 are used in designing data collection module which can convert range automatically

    選用高性能運算放大器及16位模數轉換器ad7677完成了帶有自動量程轉換的數據採集模塊的設計。
  16. Second, according to the design project, it realize the following functional modules : ( 1 ) the server ( pc - gis ) functional module ; map layer creation and data synchronization ; ( 2 ) the client ( pda - gis ) functional module : system management, graphical data management, attribute data management, information query, measurement of area and shape, and system help

    其次，按照設計方案，實現了以下功能模塊:服務器部分（ pc - gis ）功能模塊:圖層製作功能，文件格式轉換和數據同步功能，客戶端部分（ pda - gis ）功能模塊:系統管理功能，圖形數據管理功能，屬性數據管理功能，信息查詢功能，圖面型測量和系統幫助功能。
  17. The paper is completed research of measurement and control system based on dsp under technology. the paper is designed a card with the data - collection conversion and control by adopting mainly tms320f240 among the dsps as kernel processor, with peripheric a / d and d / a circuit epm7128 ' s decode and latch circuit and isa interface circuit

    本論文主要是採用數字信號處理器dsp中的tms320f240作為核心處理器，結合外部的模數轉換和數模轉換電路、可編程邏輯器件epm7128的地址譯碼和鎖存電路和isa介面電路，設計了集採集、轉換、控制於一身的isa卡。
  18. This paper explains 1 - wire net, such as the hardware circuit and communication protocol, analyzes features of sensor chips ( the 1 - wire devices ) and 1 - wire ? line - powered microlan ? networking technique

    著重討論了可編程的三種單總線傳感器：溫度數字傳感器ds1820 、 a / d轉換器ds2450 、計數器ds2423 。
  19. Advanced fpga technology is introduced to improve the integration of digital circuits, and all digital circuits in the original module are integrated in the fpga chips, which could not only reduce the cost, but also improve the reliability and measurement precision of the circuits. high speed digital signal processor ( dsp ) is selected as the coprocessor instead of scm ; it can receive all kinds of commands sent from vxi, analyze and execute the commands, harmonize each section of the module and process the data. higher - conversion - speed comparator chip is adopted to convert the input signals being measured into square waveform signals which could be identified by fpga chip ; it can expand the measurement range of frequency dramatically

    本文在原有vxi總線四通道計數器模塊的設計基礎上，通過對原模塊缺陷的分析，採用一些新的技術和新的電子器件來重新設計該計數器模塊:採用最新的fpga技術來提高數字電路的集成度，將原模塊中的所有數字電路全部集成在fpga晶元中，這樣不僅能節約成本，還能提高電路的可靠性和測量精度;採用高速的數字信號處理器（ dsp ）取代原有的單片機作為協處理器，來接收vxi發來的各種命令，分析命令、執行命令、協調模塊各部分的工作以及對數據的處理;採用轉換速率更高的比較器晶元將輸入的被測信號轉換為fpga晶元能夠識別的方波信號，能極大提高測量頻率的范圍;採用d / a轉換晶元和隔離運算放大器得到隔離通道所需的比較電平，該比較電平值能夠根據實際需求進行設置，能增強模塊的使用靈活性。
  20. Digital feedback twice sampling a / d converter is based on common accurate dual integral a / d converter. during the second sampling, through the control logic, programmable counters and switch control, realize digital feedback and substitute primary analogue feedback realized by high accuracy d / a converter

    在第二次采樣中，通過控制邏輯、可編程計數器和開關控制來實現數字反饋，以取代原有的兩次采樣a / d轉換器中通過高準確度d / a轉換器所實現的模擬反饋。
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