technology of precision measurement 中文意思是什麼

technology of precision measurement 解釋
精密測量技術
  • technology : n. 1. 技術，工程，工藝。2. 製造學，工藝學。3. 術語（匯編）。
  • of : OF ＝Old French 古法語。
  • precision : n 精密，精確性；嚴格；精密度；【修辭學】精確。 arms of precision 裝有瞄準儀的槍炮。adj 精確的，精...
  • measurement : n. 1. 測量，計量，量度。2. 份量，尺寸，大小，寬度，厚度，深度（等）。3. 測量法。 measurement goods （按體積、容積計算的）體積貨物。
  1. Due to existing signal processing technology ’ s shortage such aslow measurement, narrow measurement range precision and other poor performance, we introduced a high - precise signal processing technology : firstly, to get power spectrum with hanning windowed welch modified periodogram, search its peak value frequency ; secondly, to apply zooming analysis via goertzel algorithm ; at last, to get a highly precise doppler frequency with energy centrobaric rectifying algorithm 。 the simulating result indicated that this technology introduced could get accurate doppler frequency 。 depending on above discussed technology, we designed a signal processing scheme, and developed a signal processing system. the running result showed high performance, verified the feasibility and reliability of the highly precise signal processing technology introduced. in a word, the technology improved ldv ’ s performance such as measurement precision, measurement range, dynamic response time 。 and it will have a wide application foreground

    針對存在的缺點，本文提出了一種應用於激光多普勒測速的高精度信號處理技術，即首先利用加hanning窗的welch修正周期圖演算法得到信號功率譜，搜索其譜峰值頻率，接著利用goertzel頻譜細化演算法對搜索的譜峰進行細化分析，再引入能量重心頻譜校正演算法對細化后的譜峰進行校正分析，從而將離散頻譜分析演算法、頻譜細化演算法和頻譜校正演算法三者有機結合起來，充分發揮各自的優點:通過加hanning窗的welch修正周期圖演算法快速得到功率譜及峰值頻率，通過goertzel演算法獲得分析頻帶的高解析度頻譜，然後通過能量重心校正演算法對細化后的頻譜進行高精度校正，這樣不僅保證了演算法的高效性，而且大大提高了分析的精度。
  2. The phase - shifting interference is a osculant and high precision technology base on the wavelength. because of the different size of object being measured leading to different size of interference wave which brings on asymmetry of the interference wave ineluctably we adopt the zoom lens to improve the measurement precision. considering the interferometer ’ s sensitivity to the vibration the interferometer is often used in the lab which restricts it being used widely

    移相干涉術是以光波波長為單位的非接觸式高精度測量技術，為了使大小各異的被測元件產生的干涉條紋尺寸大小一致而引入了變焦鏡頭，從而不可避免地導致干涉條紋亮暗不均勻和照度改變的問題，最終影響測量精度。
  3. In order to attain high accuracy of gps satellite navigation, positioning and low cost in precision agriculture, it is studied a method of gps pseudo - range observation and carrier phase measurement to combine the actual conditions of agriculture. it is presented a method of high accuracy positioning and measure based on gps oem board in this paper, and proved the feasibility of key technology with emulations and field tests

    為了適應精準農業高精度、低成本的gps定位導航應用要求，本文通過對gps偽距和載波相位定位方法的研究，結合精準農業的實際情況，提出了基於gpsoem板的高精度定位與測量方法，並用模擬和田間試驗驗證了各關鍵技術的可行性。
  4. The research on autonomous navigation and orbital keeping technology of geosynchronous satellites : selecting position vector in the inertia space and longitude, latitude, radial errors in the hill equation as state variables, the precision of orbit determination caused by track dynamic model error, sampling period, and sensor measurement and install error is analyzed

    同步衛星自主導航與軌道保持技術研究：分別選取慣性空間位置矢量和採用hill方程表示的經、緯、向徑誤差作為狀態量，分析軌道動力學模型誤差、采樣周期以及敏感器測量、安裝等誤差對定軌精度的影響。
  5. The automatic measurement system for artillery body inside chamber defect belongs to the application study of intelligent measurement technology. it is the effective combination and application of several technology including modern optics, precision mechanism, electronics and technique of computer. it is a kind of auto lossless detecting which applied computer real - time control to realize high precision and high efficiency

    火炮身管膛內疵病測試系統屬智能檢測技術的應用研究，是現代光學、精密機械、電子學與計算機等項高新技術在軍用技術中的有效組合及其應用，是應用計算機實時控制，實現高精度、高效率的自動無損檢測。
  6. It has many unique advantages compared with laser interferometry. and it can achieve higher accuracy and resolution than traditional geometry moir. it has been proved to be very useful in many practical applications, such as microelectronics, ultra - precision manufacturing, bioengineering, medicine, space technology, and material science, etc. in this dissertation, key technologies of nanometer displacement measurement by grating interferometry are systematically investigated, which mainly include measuring theories, designing grating interferometer and new subdividing method for moir interference fringes

    作為能夠實現納米級位移測量的技術之一，光柵干涉位移測量技術具有激光干涉儀不具備的獨特優點，可以獲得比幾何莫爾術更高的測量準確度、更高的解析度，在諸如微電子、超精加工、生物工程、未來醫學、航天技術、材料科學等眾多領域有廣泛的應用前景。
  7. In this paper, the application of dsp technology in electric power measurement meter has been studied, meanwhile analysed the error of the electronic energy meter, put forward the measure to compensate error with software method. it not only changes the precision degree of electric power measurement meter, but also avoids the disadvantage from error compensate with hardware method, it is unnecessary to adjust the sample value of voltage and electric current in circuitry

    對dsp技術在電度表中的應用進行了研究，對電度表系統的誤差進行了分析，提出了採用軟體方法來補償誤差的措施，使電度表的精度達到了設計要求，又避免了利用硬體進行誤差補償所帶來的弊端，不用在線路中調整電壓、電流采樣值，有利於生產。
  8. So the ultra - precision machining technology about kdp crystal, especially the related technologies such as machining equipment, machining mechanism, the processing crafts, the measurement methods for the processed surface and the evaluation of machining quality, has become the popular topic studied by experts from various countries all over the world

    關于kdp晶體的超精密加工技術，尤其是kdp晶體的超精密加工設備、超精密切削加工機理、加工工藝方法及加工后的表面檢測和質量評價等技術是目前世界各國專家研究的熱門課題。
  9. In the first part of this paper, the theory of laser range and dds technology was introduced, the factors of influencing range precision were also analysed. at the same time, put forward in the paper, with using the fpga embedded technology, the wideband and high resolution sin modulating signals can be generated easily, then analysed the noise of the dds ; in the second part, the theory of phase measurement based on fft was analysed. in the phase range system, by using the fft operation, the resolution and sensibility of phase measurement can be enhanced ; then some circuits were designed and come true, also simulated and validated ; in last part, the improvement of the phase range system was brought forward, summarized and expected

    論文首先闡述了激光測距和調制信號源的基本原理，分析了影響測距精度的因素，指出應用dds技術可以實現寬帶、高精度的調制信號輸出，說明了引起dds輸出信號雜散的原因和解決的辦法;同時分析了應用fft運算實現信號相位提取的基本原理及設計方法，採用這種檢相技術，可以極大地提高測相精度與靈敏度;然後提出了基於fpga嵌入式系統的相位式激光測距機的整體設計，並就各部分進行了詳細的分析與設計;接著介紹了激光測距系統的外圍電路和基於quartusii集成軟體平臺的部分硬體電路的設計，並對其中的設計進行了模擬和驗證;最後總結提出了對系統今後的進一步改進和完善的思路。
  10. Meanwhile, we are pursuing a number of developments in the nanotechnology field by integrating the above - mentioned composite material technology with precision forming technology, fine processing technology and analysis measurement technology

    我們還將融合上述復合材料技術，精密成形技術，微細加工技術以及解析和計量技術，在納米領域開辟新紀元。
  11. The research of the laser measuring global radar technology can meet the need of the measurement on surface precision of radar antenna reflector under the working state. and it is important to analyze the precision of radar antenna surface measurement technology

    激光檢測整體雷達技術研究是為滿足對雷達天線反射體在工作狀態下的型面精度檢測的需要，而對雷達天線型面精度檢測技術進行精度分析也是相當重要的。
  12. 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。
  13. Technology of precision measurement

    精密測量技術
  14. The laser ranging is a technology for precision measurement, it is developing along with the development of the laser technology, which is extensively used in the military field and the civil field because of the good accuracy

    激光測距是隨著激光技術的出現發展而發展起來的一種精密測量技術，因其良好的精確度特性而廣泛的應用在軍事和民用領域。
  15. The laser ranging is a technology for precision measurement and it is developing along with the development of the laser technology. the laser ranging is extensively used in the military field and the civil field because of its high accuracy

    激光測距是隨著激光技術的出現發展而發展起來的一種精密測量技術，因其較高的精確度特性而廣泛應用在軍事和民用領域。
  16. Microsystem and control technology laboratory is subject to research center of micro / nano technology of tsinghua university, and state key laboratory of precision measurement technology and instruments

    微系統與控制技術研究室是清華大學微米納米技術研究中心和精密測試技術及儀器國家重點實驗室的一部分。
  17. Yield - measurement is a key technology of desiderating resolution in precision agriculture system. it is necessary in our country that studying the methods of grain - flow - measurement in lab. many methods of measuring grain flow on combines are presented in the literature, such as volumetric method, impact sensor, radiometric method and capacitor sensor, etc

    因此，穀物流量實時在線測量方法作為當前「精細農業」體系中的基礎環節及亟待解決的關鍵技術之一，在我國嘗試性地在實驗室中進行多種方案的并行探索是十分必要的。
  18. Technology of time - interval measurement has been applied in many fields. how to improve its precision is an emergent question. on the basis of analyzing electronic counter ' s principle and error, this paper puts emphasis upon introducing high precision time - interval measurements all over the world. all these methods aim at electronic counter ' s principle error, and obtain special effect. lastly, the progress direction and application foreground of high precision time - interval measurement methods are predicted

    時間間隔測量技術在眾多領域已經獲得了應用，如何提高其測量精度是一個迫切需要解決的問題，在分析電子計數法測量原理與誤差的基礎上，重點介紹了國內外高精度時間間隔測量方法，這些方法都是對電子計數法的原理誤差進行測量，並且取得了非常好的效果;最後給出了高精度時間間隔測量方法的發展方向及應用前景。
  19. With the fast development of information industry, microelectronics manufacture technology has entered into 3d machining field at nanometer levels, so a severe challenge is put forward to the measurement of ultra - precision 3d microstructures

    隨著信息產業的高速發展，微電子製造技術進入納米級三維加工技術領域，這就對超精密三維微細結構的測量提出了嚴峻挑戰。
  20. The application of advanced devices, new methods and latest technology to phase measurement results in dramatic improvement of function and precision of phase meter

    將新器件、新方法和新技術應用於相位測量技術中，相位計的性能和精確度得以顯著提高。
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