電離計數器 的英文怎麼說

中文拼音 [diànlíjìshǔqì]
電離計數器 英文
ionization counter
  • 電 : Ⅰ名詞1 （有電荷存在和電荷變化的現象） electricity 2 （電報） telegram; cable Ⅱ動詞1 （觸電） give...
  • 離 : Ⅰ動詞1 （離開） leave; part from; be away from; separate 2 （背離） go against 3 （缺少） dispens...
  • 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
  • 計數 : count; tally; counting計數卡 numbered card
  1. So, this paper researches the principle of measuring system of insulating oil dielectric loss and volume resistivity. during the measuring process, the insulating oil must be heated and kept at 90 in 15 minutes. medium - frequency induction heating method is presented to instead of the electrical resistance furnace heating method on chapter 2, and a kind of subdivision - controlled integral - separated digital pid algorithm is designed to control the medium - frequency induction heating apparatus

    本文對恆溫控制系統進行了研究，提出了以中頻感應加熱方式取代原有的電阻爐加熱方式，設計了一種分段控制的積分分離式數字pid控制器來控制中頻感應加熱裝置，並通過通信設計將恆溫控制系統與介損及體積電阻率測試系統有機結合為一體機，實驗結果表明該恆溫控制系統完全滿足介損及體積電阻率測試中的控溫要求。
  2. The hardware is composed of digital luminometer, rotate encoder, step motor and data acquisition card, solenoid - operated clutches. the software is developed in visual c + + 6. 0 which is an oop programming environment and has plenty of resource to use. this system can implement high speed, automatic measurement

    課題對測定系統進行了總體設計，硬體部分由數字照度計、旋轉編碼器、步進電機、電磁離合器等組成，軟體部分利用acl - 8216數據採集卡，以vc + + 6 . 0作為軟體開發平臺，充分利用vc + + 6 . 0生成友好界面的優勢和acl - 8216的資源，開發出了測試系統。
  3. In the positioning servo - system, which generally is configured by the d. c. pulse width modulator ( pwm ) velocity governing system and position servo - loop, the parameter perturbance of pwm velocity loop really exist by reason of such as the load behavior ; power voltage supply ; operating setting value, etc. 1, 2 ， and it cannot be ignored. by using the identification technique to form the mathematical model of the system, authors have confirmed the facts. therefore, to design the discrete sliding mode controller ( dsmc ) of the positioning servo - system, the perturbed parameters value bounds of the pwm velocity loop, which is as the controlled plant of position servo - loop, should be accounted. consequently, the design principle of dsmc for accounting system with parameter perturbance is proposed by the authors. the proposed method can ensure the stability of system with parameter perturbance and the behavior of non - overshoot, fast precise positioning. in order to reveal the effects of the design method, the comparative research work is done by the authors. also, it has been tested in an industrial experiment, the results proved it is satisfactory

    由直流脈寬調速系統（ pwm ）和位置環構成的定位系統中，速度環的參數隨負載特性；電網電壓；給定工況而攝動是不容忽視的.作者通過系統辨識建模也證實了這一事實1 ， 2 .因此在設計位置環的離散滑模控制時，必須針對速度環（即位置環的控制對象）的參數攝動范圍採用「對象參數攝動離散滑模控制器的設計方法」 ，以確保系統在參數攝動時的穩定性和快速、無超調、準確定位的優良動態品質.為剖析該設計方法的控制效果，本文作了對比性研究，並將該設計方法用於工業試驗中，取得了滿意的結果
  4. Eddy - current sensor conversion circuit consist amplification circuit, band - pass filter circuit, demodulation circuit, differentiation phase and data sampling circuit. these circuits are used to convert the test signal of eddy - current sensor to discrete signal tend to process. the microprocessor system that formed of dsp chip is used to data fitting of test system, data displaying and data communicating with personal computer, etc. the interference questions of hardware design and the measure of eliminating interference signal in the subject are introduced in the last of this chapter

    硬體電路的設計主要分三大部分來實現：激勵源電路部分，由分頻電路和頻率合成電路組成，產生頻率穩定的激勵信號以確保檢測任務的正常進行；傳感器變換電路部分，由放大電路、濾波電路、檢波電路、鑒相電路和數據採集電路組成，主要將電渦流傳感器檢測線圈檢測到的信號變換成只含有被測信息的離散信號，易於后續電路處理；由dsp晶元構成的微處理系統，主要完成檢測系統的數據擬合、顯示及與主機通信等功能。
  5. ( 2 ) different calculating schemes are designed which are used to analyze in detail the characteristics of the effect from instrumental bias ( ib ) in gps observations on determining ionospheric delays

    （ 2 ）設計了幾種不同的計算方案，用於分析儀器偏差對確定電離層延遲的影響的特點。研究表明，儀器偏差對求解電離層延遲的影響遠大於觀測噪聲的影響，給電離層延遲觀測值帶來高達數米的系統誤差。
  6. This paper introduces a simple continuous radiation monitoring system, which consists of ionization chamber detector, pc and a counter

    摘要介紹了一種簡便的連續監測系統，它由電離室探測器、微機及其內插計數卡構成，可用於環境監測。
  7. 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。
  8. With the mathematic model of tracking beam current by velocity, real - time tracking can be obtained ; with current simulation controlling transducer and subsection linearity, precision of velocity ( error in ? 1 % ) is triumphantly can be controlled ; with inspection of the pulse numbers of switches, the position of all vehicles are checked to eliminate the error of calculating distance between all ones

    通過建立速度跟蹤束流的數學模型，較好地解決了速度跟蹤束流的實時性問題;通過採取用電流模擬量控制變頻器和分段線性處理的辦法，成功地解決了速度精度問題（誤差在士1 %內） ;通過檢測接近開關觸發的脈沖數，適時校核所有小車位置，消除各車之間距離計算誤差，從而很好地解決了距離累計計算誤差。
  9. High - performance isolation power supply, magnetism isolation chip and photoelectricity coupler are employed to accomplish high - speed transmission for data, which improve the noise restraint and electric isolation. in addition, the error of measurement of the universal counter is analyzed in this thesis

    使用了高性能的隔離電源、磁隔離晶元和光電耦合器，實現了對計數器的完全隔離，起到了很好的抗干擾效果和電氣隔離作用，可以實現數據高速傳播。
  10. The whole circuit ' s timing generation and synchronization was realized with cpld. as the channel of data transmitting, pof can isolate high voltage part and low voltage part efficiently. at the same time, a single chip processor was used to design a digital meter for the fiber current transducer

    系統採用cpld實現整個工作電路的時序發生和同步協調，利用光纖實現高壓部分和低壓部分的完全電氣隔離和實現信號傳輸，採用單片機技術實現混合式光纖電流互感器專用數字顯示儀表的設計。
  11. 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。
  12. This machine has many functions of photo - electricity auto tracking, deviation, magnetic powder brake and clutch to control tension, as well as auto, count and preset count etc

    該機具有光電自動跟蹤、糾偏、磁粉制動器和離合器控制張力，自動計數和預置計數等功能。
  13. The author ? major contributions are as follows. 1. with the performance requirement ( the pattern of the antenna, the rang of scanning angle, the maximal sidelcbe level and the beam ~ vidth ) givcn, a method is presented to determine the basic parameters of a serpentine feed, which includes the distance and ~ vaveguide length bet ~ veeii t ~ vo couplers, the size of the arrays and the number of components

    根據天線的工作頻帶、掃描范圍、副瓣電平、半功率寬度等技術指標要求，給出了確定波導慢波線基本結構尺寸的計算公式，即對相鄰單元之間的空間距離、耦合器之間的饋線波導長度、陣列的大小和單元數的計算。
  14. Determination of the detection limit and decision threshold for ionizing radiation measurements - fundamentals and applications to counting measurements on filters during accumulation of radioactive material

    電離輻射測量探測限和判斷閾的確定.基本原則及對放射材料累積過程中過濾器計數測量的應用
  15. 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。
  16. The framework of the instument is analyzed firstly, and the paper focuses on the ecg pre - amplifier design, the data acquisition module based - on isa bus with multi channel inputs is realized, the system software that can fulfill the data acquisition, display and communication is also designed. the two patterns of the network communication is introduced in detail

    本文首先分析了智能網路型心電圖系統的結構，重點敘述了前置隔離型心電圖放大器的設計，研製了具有定時采樣功能的多通道數據採集系統，編制了集采樣、實時波形顯示、測量及網路通信等功能於一體的系統軟體。其中對心電圖儀網路通信部分的兩種模式作了詳細介紹。
  17. For ac discrete digital signal, the zero - calculating method is applied to calculate the true zero in the periodic signal. for the measurement of ac and dc voltage spectrum, the faster fourier transform ( fft ) is used. to measure dc voltage ripple spectrum and frequency modulation of ac voltage, the digital filter is used

    其中對于交變的離散數字量，採用零點撿出技術計算周波信號的真實過零點；對于交直流電壓頻譜，採用快速傅立葉變換進行頻譜分析；對于直流電壓脈動和頻率調制，採用數字濾波器進行濾波后再做分析處理。
  18. The general transfer functions of pwm converter are developed and the small - signal transfer functions controlled by the duty cycle are given using matlab. the voltage adjuster and the current regulator of the control circuit are designed. the isolated cuk converter is analyzed and the features and the description of the uc3854 are presented in detail

    論文分析了帶隔離變壓器的cuk變換電路，介紹了平均電流型功率因數校正晶元uc3854的結構、功能；根據uc3854的具體特點與要求，以設計一個具體、實用的帶pfc功能的開關電源為例，設計、計算了主電路電感l1 、 l2 、 c1 、 c2 、隔離變壓器以及電壓、電流調節器電路的參數及要求。
  19. The emphasis of this article is the design in the second period, which is based on the pic microchip interface, because at present embedded structure is adopted by most of medical instruments so that it can run separately without computer, hi this part the article specifically introduces the interface circuit of pic16f877 single - chip, which includes the acquisition of a / d signa ls and the serial communication between the single - chip and computer, the design of complex programmable logic device ( cpld ) and the using of hardware describe language ( vhdl ) to control the rotate speed of 4 - route stepping motors

    本論文的重點是在設備的第二階段開發，它是基於pic系列單片機介面的硬體設計，主要是針對現階段大多數醫療設備都是採用嵌入式結構，它能夠脫離計算機單獨運行。在這部分詳細介紹了pic16f877單片機的外圍電路，包括a d信號的採集、單片機與計算機的串列通信，可編程邏輯器件cpld硬體的設計，以及用硬體描述語言vhdl編程來同時實現4路步進電機的轉速控制。
  20. In dtc system, the concept of space vector is introduced to analyze and control the ac motor, the electromagnetic torque and flux are caculated and controlled in the stator reference frame, and the optimal pwm gating signas are generated to control the inverter according to the output of the bang - bang regulator. in this paper, the dtc system is designed based on dsp. a speed estimation method is derived detailedly and the sensorless speed close - loop control is conducted. in this system, there are some problems, such as flux drift and torque ripple. to resolve these problem, a modified flux caculation method and some measures such as speed lpf, torque slide filtering are adopted. the system performance is enhanced by these mersures

    直接轉矩控制採用空間矢量的概念來分析異步電機的數學模型和控制其各物理量，直接在定子坐標系中計算和控制轉矩和磁通，藉助于離散的兩點式調節（ bang - bang控制）產生pwm信號，直接對逆變器的開關狀態進行優化控制，以獲得轉矩的高動態性能。本文採用dsp設計了直接轉矩控制系統，詳細推導了速度估計方法，進行了無速度傳感器的速度閉環控制。
分享友人
分享到 Line

分享到臉書