measurement time 中文意思是什麼

measurement time 解釋
測量標準
  • 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。
  • time : n 1 時，時間，時日，歲月。2 時候，時刻；期間；時節，季節；〈常pl 〉時期，年代，時代； 〈the time ...
  1. The methods of direct measurement with low precision such as frequency and time interval methods and the methods of indirect measurement with high precision such as beat frequency method, dual mixer time difference method and frequency difference multiplying method are supported on the platform. the fundamentals of each method are studied. the quantization error is analysed and the illustration is given for each method

    該平臺支持直接頻率和時差法兩種較低精度的測量方法以及雙混頻時差法、差拍頻率法和頻差倍增法高精度的簡接測量方法，本文研究了各種測量方法的原理，對各種測量方法的量化誤差作了分析，並給出具體的實例。
  2. 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。
  3. Process tomography ( pt ) technique can provide interior behavior 2 / 3 dimension visualizing information in process equipment such as closed pipe, vessels and so on in real time, so it is a novel approach for two - phase flow parameters measurement

    過程層析成像（ pt ）技術能實時提供封閉管道、容器等過程設備內物場運動狀態的二三維可視化信息，為解決兩相流參數檢測問題提供了一條新途徑。
  4. With a view to the contactor counterforce, which was calculated by the combination of spring - force and mechanical construction before, had the problem of mechanical matching. the contactor counterforce " one - off " measurement, which is realized by the synchronization testing of the placement based on opto - mechanism and the spring counterforce for the moving component, is put forward the fist time

    針對現階段接觸器反力特性主要採用彈簧力與機械結構組合的計算方法，存在機械配合性問題，將接觸器光機電位移檢測與可動部件彈簧反力特性檢測同步進行，首次實現了接觸器反力一位移特性的「一次性」測量。
  5. Measurement and analysis of multi - frequency electrical impedance in crus after long time seawater immersion

    長時間海水浸泡下小腿多頻電阻抗測量與分析
  6. In the system, the collimation semiconductor laser - scanned beam scanning two perpendiculars direct of one plane of the measured workpiece at the same time is made. the beams with the dimension information of two perpendiculars direct are processed by the scanning receive system, the high - speed photoelectric transition and electronic data process. two measured results of the diametric directs and ellipse tolerance, etc, parameter, of the turning workpiece on the same plane are obtained by non - contact automatic measurement

    在單向激光掃描檢測技術的基礎之上，提出了一種雙向激光掃描檢測系統，其採用激光掃描檢測技術與特殊光學系統相結合，用準直半導體激光掃描光束對被測工件徑向某一截面的兩個相互垂直方向同時掃描，經掃描接收光學系統、高速光電變換、電子學系統和微機數據處理系統，對將攜帶有垂直方向被測量信息的光束進行處理，實現了回轉體工件同一截面兩個垂直方向的徑向尺寸和橢圓度等參數的非接觸自動測量，解決了同時非接觸測量回轉體零件同一截面兩個徑向尺寸的難題，它具有高速，高精度和非接觸自動測量等特點。
  7. A high - precise arbitrary dihedral and circular division measurement system is exploited at the first time ; the measuring and system controlling software based on ms windows are also exploited

    首次研製成功了高精度任意二面角與圓分度測量系統，並編制了基於mswindows的測量和系統控制軟體。
  8. A noncontact 3 - d position measurement system is introduced in this thesis. the system is composed of a planner array ccd detector, real time image analysis and quick data calculation system, which can survey the positional relationship between the haloid lamp objects on the emissive vehicle and the measuring system on the loading vehicle

    本文研究了一種簡單、新型的非接觸三維位置測量系統，該系統由一組ccd探測器、實時圖像處理及快速數據解算系統組成，對發射車上鹵鎢燈目標在測量坐標系中的三維坐標x 、 y 、 z值和發射車軸線相對測量坐標軸的夾角進行測量。
  9. This multi - purpose optical metering system had adopted the twyman - green interferometric system as its center, containing an advanced digital wave surface interferometry and a kind of homodyne interferometer displacement testing method with nanometer - sized capacity. at the same time, many wide - applied metering technology, for example, the diffracted field ( fringe ) measurement, co - focal lens system, optical fiber sensors and 4f ( focal distance ) space filter system which can embody the chief principle of fourier optics well, were combined into it successfully. this instrument can firstly offer and show modern optical testing method in the laboratory for majors of information processing, instrument science, measuring and testing technology and automatic technology

    該多功能激光光電實驗系統以泰曼-格林干涉（ twyman - green ）光路作核心，包括先進的數字波面干涉技術和一種基於空間干涉原理的、納米解析度零差干涉儀位移測量方法，同時將多種新穎、工程實用價值高的測量技術和光路如衍射測量、共焦顯微技術、光纖傳感技術以及反映傅立葉光學基本光學原理的4f空間濾波系統也組合進去。
  10. The results show that in our research ptt ( pressure, time and temperature ) region the corrosion resistant effect of treated uranium depends on the treated time. the passivation film thickness maybe have an effect on the corrosion resistance. the electrochemical corrosion resistance of treated uranium in the solution ( 50ug / gcr ) has been studied by electrochemical measurement

    在一定的溫度、壓力、時間范圍內，經超臨界co _ 2短時間處理的樣品其抗腐蝕性能有一定的提高，但效果不很明顯；經超臨界co _ 2和氣態co _ 2長時間處理的樣品其抗腐蝕性能顯著提高。
  11. It can provide many users at discretion of any place in the world high definition, all - weather, continuous and real - time three - dimension allocation, velocity measurement and time baseline at the same time ? it had been founded in 1993, and lias been paid great attention in fields of military and social - life application

    全球定位系統（ gps ）是新一代的導航定位系統，它能夠為全球任意地點、任意多個用戶同時提供高精度的、全天候的、連續的、實時的三維定位、測速和時間基準。
  12. Assuming that the moisture contents in the lysimeter at the time of measurement remain the same as the previous day, the difference between the added water and the overflow represents the potential evapotranspiration

    假定蒸散量測定裝置內的含水量在兩次量度時間之間保持不變，則灑上草面水分和漏出水分之差即代表可能蒸散量。
  13. Using domestic strained integrated resistor as weighing sensor, at89c52 single chip as control unit, combined with arithmetical magnification, analogtodigital conversion ( a / d ), real time clock, liquid crystal display ( lcd ), and series communication interface, a minitype automatic weighing lysimeter is developed. that made measurement of evapotranspiration become conveniently and effectively in studying on water use of crops

    為了方便、有效地測定植物的蒸散，為水分利用研究提供價廉物美、簡單易用的儀器，本研究利用國產的集成電阻應變式稱重傳感器，採用at89c52單片機作為控制單元，結合運算放大、模數轉換、實時時鐘、液晶顯示、數據存儲、串列通信等外圍介面電路，研製了小型自動稱重式蒸散儀。
  14. The method can be used in the measurement of periodic and nonperiodic signal. according to the high accuracy and fixed gate - time measurement method, based on the multiple period synchronization method, the high speed, high accuracy and continuous frequency measurement is accomplished

    將其再與一種從多周期同步法發展而來的高精度、定閘門法相結合，從而實現了高速、高精度、連續頻率測量，這非常適合非頻率量的頻率傳感信號的測量。
  15. The technology is remote distance and no osculant measurement, and the measure instrument can be real time control by pc. the system adopts an optical system equipped pritchard hole reflector. it can provide efficiently optical channel, and it can aim at the distant object and measure brightness and color precise

    本系統採用了裝備有帶孔反射鏡的望遠光學系統，能夠對遠處的測試目標進行亮度與顏色的精確瞄準測量，同時可方便的改變視場角的大小。
  16. At the same time, combining the electrostatic measurement principle and the actual working conditions of pneumatic pipelines, the author puts forward the design principle in theory and finishes the devising, executing, debugging, experimenting and analyzing the experiment phenomena and results, testing the feasibility of the electrostatic sensor to be used in the measurement on the mass flow rate of the coal paniculate. furthermore, with the debugging and experimenting of the system, the author improves the electrostatic sensor and its signal collecting system gradually according to the problems, and makes the performance of the system to be enhanced remarkably

    同時，作者結合靜電測量原理以及氣力輸送管道的實際工況，從理論上提出了靜電傳感器的設計依據，完成了靜電傳感器及其信號採集系統的設計、製作、安裝、調試和實驗，分析了實驗現象和結果，驗證了靜電傳感器用於煤粉質量流量測量的可行性，並且通過系統調試和實驗，針對發現的問題對靜電傳感器及其信號採集系統不斷地進行了改進，使其性能有了顯著地提高。
  17. The developed apparatus can automatically measure evapotranspiration at setting up interval and memory the data through a 32 kilobyte data storage memory. measured data can be transmitted to personal computer by rs232 series communication interface. apparatus will be trigged at measurement time by a real time chip set in it

    該儀器通過實時時鐘晶元實現間隔採集動作的觸發及時間、日期的計數；利用液晶顯示器（ lcd ）進行顯示；使用它能在無人監管的工作環境下，定時進行蒸散測量並將測得數據自動保存到32k數據存儲器中；再通過rs232串列通訊介面將數據傳送到pc機進行進一步處理。
  18. Experimental results show that the total measurement time is less than 0. 1 second and the maximum error of voidage measurement is less than 6 %

    實驗結果表明摘要一在0 100測量范圍內空隙率測量最大誤差可小於6 ，得到一個空隙率測量值演算法耗時小於0j秒。
  19. Cid - icp - aes has the advantages of high sensitivity, high signal - to - noise and high quantum efficiency, which nearly reaches theoretical limit value of theoretical parts of an apparatus ; it can memorize thousands of spectra lines at the same time. cid - icp - aes is the newest model, and there are still few articles to report analytical character of this type, as this result the optimum of operating condition and the effect of analytical parameters for photometric precision, signal - to - noise and detection limits are studied : r. f. power is 11 sow, nebulizer pressure is 28psi, the measurement time is 3 times and the integral time is 20s

    本實驗室的光譜儀是當前最新型號的全譜直讀光譜儀，這類新型裝置分析性能的研究報道較少，因此研究著重分析了參數對測量精密度、線背比及檢出限的影響，對儀器最佳操作條件進行了摘要優化：發射功率採用1150w ；載氣壓力為28psi ，測量次數選擇3次，積分時間為205 。
  20. The emitter location methods commonly include : angle of arrival ( aoa ) measurement, time - difference - of - arrival ( tdoa ) measurement and aoa together with tdoa measurement. this paper derive some important techniques and theories bearing upon passive location in this field. three kinds of passive location algorithm in three - dimensional ( 3 - d ) space are deduced based on that of 2 - d space. at the same time each performance is analyzed, each graph of geometric dilution of precession ( gdop ) is emulated for different station position, different measurement error, and different target height. accordingly some valuable academic and emulational results are obtained by myself, which will provide researches in this field with definite technical refrence. at the end of this paper, the passive location method of jtids ( joint tactical distribution systems ) is discussed, which is expected to enforce the tactical performance of jtids in the intending development

    本文汲取了該領域有關被動定位的重要技術和理論，在二維平面無源定位演算法的基礎上推導出了三維空間內的三種無源定位演算法，並對各自的定位性能進行了理論分析和計算機模擬，模擬出不同的布站、不同的測量誤差以及不同輻射源高度的情況下，三種定位方法各自對應的定位精度（ gdop ）分布圖，同時對各自的定位性能進行了改進處理，得出了一些有價值的理論和模擬實驗結果，這些結論可為今後在此領域的研究提供一定的技術參考。
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