數字計時器 的英文怎麼說

中文拼音 [shǔzìjìshíqì]
數字計時器 英文
digital chronometer
  • 數 : 數副詞（屢次） frequently; repeatedly
  • 字 : Ⅰ名詞1 （文字） character; word 2 （字音） pronunciation 3 （字體） form of a written or printed ...
  • 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...
  • 時 : shí］Ⅰ名1 （比較長的一段時間）time; times; days:當時at that time; in those days; 古時 ancient tim...
  • 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
  • 數字 : 1. （表示數目的文字; 表示數目的符號） figure; digit; numeral; character; numeric character 2. （數量） quantity; amount
  • 計時器 : calculagraph; time meter; chronoscope; timer; time market; time totalizer; elapsed timer; running...
  • 計時 : reckon by time; timing; chronography
  1. A common data acquisition card can be used on laboratory virtual instrument engineering workbench through designing the external interface between labview and common date acquisition card on the software design ; used the idea of the double buffer and direct memory access, a real time data acquisition and logging about the succession, big capacitance leakage current is realized ; a digital filter is designed to filter high frequency signals

    在軟體設計上，設計了與普通數據採集卡的介面，實現了在labview環境中應用普通數據採集卡的功能；運用雙緩沖和內存直接映射的設計方法實現對連續、大容量泄漏電流信號的實時採集和存儲；設計了數字濾波器對採集后的原始數據濾去高頻干擾。
  2. The ? 1 word count error exists in nearly all kinds of digital time and frequency measuring instrument and it affects the instrument ' s measuring precision tremendously

    在所有的數字式時間及頻率測量設備中，幾乎都存在著1個字的計數誤差。它的存在，極大地影響儀器的測量精度。
  3. The main content is design of digital man - machine interface system, a speed regulating system of good stabilization and dynamic performance ; software for appraising the performance of wire feeder. the first, a digital man - machine interface system using at89s8252 singlechip is designed. the system uses sd7218a keyboard / display chip with serial bus interface

    首先，人機交互系統選用at89s8252為核心控制晶元，選用具有串列總線介面的sd7218a鍵盤/顯示晶元完成了數字化人機交互系統軟、硬體設計;採用rs - 485總線實現主控系統和人機交互系統的數據交互;系統採用數字編碼器和鍵盤配合的方式實現焊接參數的選擇和設定，同時還具有最優參數存儲、調用等功能。
  4. A counter with timing fiducial oscillator acts as a frequency multiplier, and the count value in the prior period is taken as the reference for the current period to give the decimal part of a signal period

    該方法利用帶基準時基的數字計數器實現周期內線性細分，當前周期信號將前一整周期的倍頻數作為參考構成信號周期的小數部分。
  5. This dissertation majorly researchs and designs full digital dc driving system with fuzzy control. it makes a scheme argumentation firstly, analyzing the pid algorithm and fuzzy control algorithm the ordinary digital pulse trigger algorithm and the double remainder method of pulse trigger in detail, and fuzzy control and the double remainder method are put forward to settle the under - mentioned problems, namely, the new viewpoint and the task having finished in this dissertation as follows : ( 1 ) in rder to overcome the influence of dc motor ' s parameter changing with time and nonlinear on the control system performance, this dissertation adopts fuzzy control as outside regulator and pi control as inside regulator in double regulators of the full digital dc motor driving system design ;. ( 2 ) aiming at the pulse trigger reliability of the ordinary d igital pulse trigger being low and leaking the pulse or the order of pulse confusion, this paper adopts the double remainder algorithm with short response time high pulse trigger reliability good adaptability and anti - jamming ; ( 3 ) this dissertation adopts tms320lf2407 which has good performance as major control chip this chip has power function with fast calculation capability, and accomplishes the software and hardware design in the dc motor driving system with fuzzy control ; ( 4 ) this dissertation also puts emphases on anti - jamming in hardware and software ; ( 5 ) after having designed the sample of full digital dc motor driving system with fuzzy control, a lot of experiments are performed to verify the performance and settles problems during experiment. the result of experiment proves the feasibility of design

    首先進行了方案論證，對模糊控制演算法和數字pid調節演算法、觸發脈沖的一般演算法和雙余演算法進行了詳細地研究分析，提出應用模糊控制和雙余法解決下述問題，即該論文主要的新見解和所完成的工作： （ 1 ）為了克服直流電機參數時變性和非線性因素對控制性能的影響，本設計中，雙閉環調速系統的外環採用模糊控制，內環採用pi控制，使系統在一定范圍內對直流電機參數變化和非線性因素影響有自適應能力； （ 2 ）針對常規數字觸發器演算法中觸發脈沖的可靠性不高，經常出現漏脈沖或是脈沖混亂的情況，本文採用雙余法，該演算法具有響應快，可靠性高，具有良好的適應性及抗干擾能力； （ 3 ）本設計中採用了速度快、功能強的tms320lf2407作為系統的主控晶元，應用該晶元完成系統的軟硬體設計： （ 4 ）本文對系統抗干擾的軟硬體措施進行了重點研究； （ 5 ）設計了具有模糊控制的全數字直流傳動系統原理樣機，並進行了試驗驗證，對試驗過程中出現的問題及時解決，最終實驗結果證明設計是可行的。
  6. 2, the optimal designed digital matched spatial filter ( dmsf ) was used to perform real - time optical correlation, which not only has the merit of large storage and renewability as well as common digital filter, but also has the virtue of high correlation s / n which the holographic optical filer owns

    2 、優化設計的數字空間匹配濾波器，既有數字濾波器的大存儲容量並可實時刷新的特點，又有全息光學濾波器高相關s n的優點。對于處于嚴重背景噪聲干擾下的多個畸變目標，也可獲得高相關s n 。
  7. In the image quantization and enhancement section, the non - linear gray mapping based on histogram specification and the enhancement digital filter in spatial domain is applied to the result digital subtraction images

    對于獲得的數字剪影結果圖象採用了規定化直方圖的非線性灰度變換演算法，同時對于結果圖象的增強設計了空域數字濾波器。
  8. Then in this paper i develop a principle and subordinate dimmer depending on the lighting products made in national. also, it provides the new design scheme combining the eib ' s dimming driver with the national principle and subordinate dimmer, which can reduce the average costs but guarantee the opening, compatibility and standard criterion of eib. the scheme solves the problem - expensive price and spread the eib ' s small system and independent system ' s integrate pattern when we extend the eib

    研究分析了eib的電氣安裝配線技術；借鑒松下照明產品，研製開發了主從式數字調光器；創新的提出了eib調光驅動器+松下主從調光器的設計方案，在保證eib協議的開放性、兼容性和標準規范的同時，降低了節點平均成本，合理的解決了eib推廣過程中遇到的最大難題? ?價格過于昂貴，拓展了eib在小系統和獨立子系統中的集成模式。
  9. Supplier of component instrumentation for power measurement and both mobile and stationary equipment. products, about company and contact information

    -致力於測試與測控技術的開發應用，主要生產數字多用表數字化儀計數計時器波形發生器以及臺式儀等。
  10. Hardware products : car security system ( mainly guard against theft system ), industry control system, product of wireless remote control with communication interface of usb, digital timer, temperature annunciator, a / d card and so on

    硬體產品：汽車安防系統（以汽車防盜裝置為主） ，工業控制系統，基於usb的多媒體計算機遙控產品，數字定時器，溫度控制器， a / d轉換卡等。
  11. This paper focuses on the design and implementation of intelligent hybrid - bus data collecting and processing system. based on one - wire techniques and its digital sensors, a hybrid - bus system is designed ; then with field - bus techniques, a lonworks hybrid data collecting system is constructed for the monitoring of distributed targets ; in order to realize real - time measurement and control on large - scale distributed system, gprs sms technique is adopted for the realization of the wireless data collecting system ; moreover, in order to improve the efficiency of control systems, a method of designing intelligent hybrid data collecting system is proposed based on multi - agent theory, and the multi - agent model and hardware structure are also discussed in detail with the fusion of one - wire and fieldbus techniques

    本文對基於混合總線技術的網路化智能數據採集與處理系統的設計與實現方法進行了研究：利用單總線技術和單總線數字傳感器，設計了基於單總線的混合總線網路數據採集與處理系統；利用現場總線技術，設計了基於lonworks的混合總線網路數據採集與處理系統；為了實現大規模分散目標的實時測控，利用gprs簡訊息技術設計了無線智能數據採集與處理系統；為了優化控制系統的性能，基於agent理論，提出了融合單總線技術和現場總線技術的多agent混合總線智能數據採集與處理系統的模型及其硬體實現方法。
  12. Then we have to figure out exactly where the overflow code should jump, and place that address at the exact proper location in the buffer in such a way that it overwrites the normal return address

    也許百分之一秒是一個數字位，而千分之一秒是另一個數字位。我們可以根據計時器的精確程度來按比例抽取數字。
  13. When dicussing reliability design and reliahbaiiy ensuring methods, a new reliability calculating model of petroleum logging tools is presented, reliability assurimg technologies should be taken in petroleum logging tools and their using approaches are presented and stated from electricity design and mechanical design, reliability system model of petroleum logging tool is set up according to the latest reliability theory, reliability indexes of petroleum logging tool and their acquiring ways are discussed, the reconmended reliability indexes ( mwture, nolwnm, mtbf, mttf ) of petroleum logging tool are presented : the mean working time under rated error ( mwture ) of the new tool is obtained through experiments. when studying data processing methods, the property of gamma - ray signal is stated and the type of it ' s measuring error is examined using statistical method, the basic theory of digital filtering and the basic situation of digital filtering methods are introduced and analyzed, the factors affecting digital filtering effect to gamma - ray signal and the effect of digital filtering to logging curve are analyzed, the evaluting criteria ( rvi, rmse, sfi ) of digital filtering effect are set up from two aspects, named as real value acquiring of steady section and the formation boundary checking and processing, the related filtering methods and examining methods are given out. the design methods of digital filter used to process gamma - ray signal are discussed, the mixed filtering scheme of natural gamma - ray log is presented, the realization ways are discussed. the selective filtering system and it ' s realization flow are given out through quantitive reseaching to part of digital filters, three new filtering sheme will be used to process gamma - ray signal in era2000 logging system

    在探討可靠性設計與可靠性保障技術時，提出了石油測井儀器的可靠性計算新模型，從電氣和機械兩個方面，提出並闡述了應採用的可靠性保障技術及其使用方法：根據最新可靠性理論，建立了石油測井儀器的可靠性系統模型，探討了石油測井儀器的可靠性指標及其獲取途徑，提出了推薦使用的石油測井儀器可靠性指標（ mwture ， nolwnm ， mtbf ， mttf ） ；通過試驗，得到了所設計儀器的穩定工作時間（ mwture ） 。在研究數據處理方法時，闡述了伽瑪信號的特徵，對測量誤差類型進行了統計檢驗；介紹了數字濾波的基本理論、數字濾波方法的概況，並進行了分析；對伽瑪信號數字濾波效果的影響因素及其對測井曲線的影響進行了基本分析；從獲取平穩段真值、地層邊界的檢測與處理兩個方面，建立了數字濾波效果的評價準則（ rvi ， rmse ， sfi ） ，給出了相應的數字濾波方法及效果評價方法；探討了自然伽瑪信號數字濾波器的設計方法，提出了適合自然伽瑪測井的混合濾波方案，探討了混合濾波方案的實現途徑；通過對部分數字濾波方法的定量研究，給出了靈活可選的數字濾波系統構成及實現流程；提出的三種濾波方案，將用於era2000成像測井系統，對自然伽瑪測井數據進行濾波處理。
  14. Through the datas contrast and analyse from two different kind of electronic electrical eneygy meter, one based on digital multiplier another one based on time - multiplier, present the means for reasonable metering

    本文對兩種新型的電子式電能表，即採用數字乘法器的基波電能表和採用時分割乘法器的電能表，進行了實驗室數據和現場走字數據對比和分析，提出了在諧波污染嚴重的電鐵牽引站的電能計量的解決方案。
  15. By analyzing the refraction 、 reflection process of fault transient current traveling wave of high voltage and characteristics of refraction 、 reflection coefficient systematically, a new fault location method of single ended traveling wave is presented. it can not only identify the reflection wave for fault location efficiently, but also not be affected by the structure and length of line. fault earthed resistance 、 fault type 、 system impedance and can locate fault in adjacent areas accurately

    論文深入地分析了高壓線路故障暫態電流行波的波折、反射過程以及折、反射系數的特點，提出了新的單端行波故障測距方法，它不僅能夠有效地識別出測距所用的反射波，而且幾乎不受線路結構、長短、故障接地電阻、故障類型、系統阻抗的影響，在近區仍可以準確地進行測距；同時模擬阻波器的特徵，設計了低通數字濾波器，對通過了低通數字濾波器的暫態故障電流行波再次進行小波分析，並利用本文提出的單端行波故障測距方法進行故障定位，結論是所提出的測距方法在實際應用中仍是有效的。
  16. The dissertation presents the combined theoretical, numerical and experimental studies on the experimental modeling of the actuator, the design of test rig and control system, the modeling of two - dimensional airfoil aeroelastic system, the control design of active flutter suppression, and the effect of group delay in the digital filter on the stability of aeroelastic closed - loop system

    本文通過理論分析、數值模擬與風洞實驗相結合的方法，研究了超聲電機作動器建模、翼段顫振實驗裝置和控制系統設計、二維翼段氣動彈性系統建模、顫振抑制控制律設計以及數字濾波器群時延對顫振抑制閉環系統穩定性影響等問題。
  17. After compared lots of literatures and methods, we offer the norm for selecting different filters. that is to say, in arrhythmia analysis, the integer coefficient lowpass filter is adopted, while in heart rate variability analysis, the high pass filter designed by all - pass minus low - pass filter or filter which can remove both baseline wander and 50hz power - line frequency at one time is used

    在對大量文獻進行比較、研究的基礎上，針對不同的臨床應用目的，提出了各種濾波器的選用準則：在心律失常分析中選用整系數低通數字濾波器對原始心電信號進行濾波；在對心率變異信號進行分析時需先用低通濾波器濾波然後再採用全通減低通方法設計的高通濾波器或者一次性濾波器進行濾波。
  18. It consists of two parts : channel modulator ' s controlling system and the receiver ' s controlling system, including the interface designing of the demultiplexer, the controlling of the channel demultiplexer, if modulator, tuner, the setting and transmitting of the system parameters, and the real - time monitoring of the whole system, etc. based on the descriptions of the scheme of bdb - t and the principles of controlling circuits, this paper presents the hardware and software designing methods of the controlling circuits, and realizes a powerful, multifunctional and reliable controlling system which can automatically record the operational states of the system and communicate with other personal computers through a rs - 232 serial interface

    控制系統是實現整個傳輸系統的關鍵部分，它分為通道調制器控制系統和接收機控制系統兩大部分，其中包括了通道解復用器用戶介面設計、對通道解復用器的控制、系統傳輸參數的設置與傳送、中頻調制器的配置、數字調諧器的配置，以及對整個系統的實時監控。本文在闡述了bdb - t方案及其各部分電路的控制原理的基礎上，詳細描述了控制系統的硬體電路設計和軟體實現方法，實現了一套功能完善、性能穩定且具有自動記憶功能的控制系統，同時該系統通過rs - 232串列介面可以實現與計算機的串口通信。
  19. The digital correlators of the two structures are designed with the foundation series 3. 1 xlinx design tools software. the classical structure emphasizes on the design of the adder, whose general form and 3 - 2 compressor structure are designed and analyzed. in this system, an express addition method is put forward, and its synthesis performance proves that it is superior to the two structures mentioned above

    文中利用xilinx公司的foundationseries軟體，詳細設計了兩種結構的數字相關器，經典結構的數字相關器以加法器的設計為重點，設計並模擬了一般結構和3 - 2壓縮結構的加法器，針對本系統文中還提出了一種快速計算加法的設計思想，綜合后比前兩種結構在性能上有明顯的提高；修正結構的數字相關器是基於模塊化的思想設計實現的，並以一個碼元的不同延時點為例，詳細分析了相關器的性能。
  20. Contrasting this, in feedback control the most majority of complex systems are controlled using sampled observations of system behavior taken at discrete time instants. thus the resulting controlled systems are hybrid systems, which are called sampled - data systems, involving both continuous - time and discrete - time signals. the investigation of sampled - data systems is motivated primarily due to the widespread use of digitally implemented controller in present - day feedback control of continuous - time systems

    工程實踐中遇到的動態系統通常是連續時間系統，與此相反，大多數復雜系統的反饋控制卻是通過觀察采樣點上的系統行為來進行控制的，結果所得到的反饋控制系統是個混合系統，它含有連續信號和離散信號，這樣的系統稱之為采樣系統，當今連續受控系統中數字控制器的廣泛運用促進了對采樣系統的研究，已有的線性采樣系統理論顯然不能滿足處理非線性采樣系統的需要，因此近年來非線性采樣系統的分析與設計已經成為國際控制論界的持續的研究熱點之一。
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