率定精度 的英文怎麼說

中文拼音 [lǜdìngjīngdù]
率定精度 英文
calibration accuracy
  • 率 : 率名詞（比值） rate; ratio; proportion
  • 定 : Ⅰ形容詞1 （平靜; 穩定） calm; stable 2 （已經確定的; 不改變的） fixed; settled; established Ⅱ動詞...
  • 精 : Ⅰ形容詞1 （經過提煉或挑選的） refined; picked; choice 2 （完美;最好） perfect; excellent 3 （細）...
  • 度 : 度動詞[書面語] （推測; 估計） surmise; estimate
  • 精度 : precision; accuracy; degree of accuracy; precision accuracy; trueness
  1. And the deficiencies are pointed out in present researches, such as highway capacity, level - of - service, influence factor of road alignments, etc. from these, it has confirmed that the thesis should be studied from rational analysis, quantitative analysis of level - of - service, impact on capacity of road alignments, setting - up simulation model, etc. the high - accuracy gps dynamic data acquisition appearance is proposed to be used for the first time to carry on the experiment of overtaking on two - lane highways, and experiment scheme is designed according to the driver ' s perceive to judge each overtaking course. based on the experiment data, it can get two important parameters of acceptant gap ? the critical gap of overtakable time headway and returnable time headway through data processing, which can offer the strong support to the research of two - lane highway capacity with qualitative and quantitative analysis. besides, the experiment methods is provided to observe overtaking ratio and to measure the

    研究中首次提出了運用高精度gps動態數據採集儀對雙車道公路上的超車行為進行觀測，設計了根據駕駛員感受度來衡量超車過程的實驗方案，並通過後期數據處理得到了超車過程中兩個重要的可接受間隙參數-可超車車頭時距和可回車車頭時距的臨界間隙值，為定性和定量分析雙車道公路通行能力提供有力的數據支持;同時，還提出了觀測超車率的實驗方法以及測量加速度干擾的實驗方案，統一了計算加速度干擾的時間統計間隔，為雙車道公路的服務水平量化研究奠定基礎;最後還簡單介紹了駕駛員問卷調查法和模擬程序中模型參數標定和驗證的數據採集方法。
  2. Analyzing and experimentally verifying the strain transducing characteristics of strain sensor. experiments tell that strain sensor capsulated by thin sheet metal can effectively transduce strain under certain mechanical robust with strain transducing efficiency of 97. 8 %, sensitivity of 83. 34 / kg, precision of 1. 64

    實驗結構證明，用薄金屬片封裝的應變傳感器在保證一定機械強度的基礎上實現了應變的有效傳遞，應變傳遞效率可達97 . 8 % ，應變靈敏度為83 . 34 / kg ，精度為1 . 64 。
  3. When the synthesized acetone cyanamide was first put through a purification treatment and then used for cyanazine synthesis, cyanazine yield was 90 %, while product purity was about 97 % and both quality and yield were consistent across batches

    對合成的丙酮氰胺進行精製處理，再用來合成草凈津，草凈津收率90 % ；純度可達97 %左右，且各批次的質量和收率都較穩定。
  4. This paper analyzes the factors affecting the controlling precision of sand compactibility system and sets up the dynamic model of regression coefficient between sand compactibility and water content. to prevent the insufficiency or excess of sand water content, the amount of the first addition is set as 80 % of the total water addition amount. after the first water addition, we adopt ar model to predict the stable value of sand compactibility to shorten the time mixing the sand. each time we add water, the correction coefficient is introduced to adapt to the change in the composition of sand. the experiment shows that the mathematics model not only makes the water content in sand reach the best range within shorter time, but also directs how the sand composition should be adjusted, which can better conform to the actual situation

    分析了影響型砂緊實率控制精度的因素，建立了型砂緊實率-水分回歸系數的動態模型.為防止型砂水分不足或過量，將第一次加水量設定為總加水量的80 .第一次加水后，對型砂緊實率穩定值採用ar模型進行預測，以縮短型砂混制時間.每次加水后，引入修正系數，以適應型砂組成的變化.實驗表明，該數學模型不僅使型砂水分含量在較短時間內達到最佳范圍，同時可指示對型砂組成進行調整，能較好地符合實際情況
  5. 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。
  6. Electric - controller is nubbin in developping. we are based on designing to structure of circuit, we are dead against in time and stabilization for controlling and communications, precision and rapidity for transformation etc. we have completed to select on microprocessor, clock - frequency and a / d transfer. it carry out transformation for valve position signal, and select on solid - switch ac

    在控制器的電路結構設計的基礎上，考慮到通訊、控制的及時、穩定、轉換的精度和速度等幾方面，主要完成對微處理器的選擇、時鐘頻率和a d轉換器的選用，閥位變送功能的實現，固態交流開關和顯示器的選擇等。
  7. Creep analysis methods of high - rise buildings and large span buildings can only refer to creep coefficient method in bridge engineering or the method of degree of creep in hydraulic construction engineering under the present experiment conditions. in this paper, the incremental expressions of concrete creep and shrinkage strain when the initial computational age is not the same as the loading age are derived and corrected from the concept of concrete creep coefficient and the mean value theorem of integral and the principle of superposition. the differences of efficiency and accuracy of creep analysis between the finite element method with creep coefficient and the initial stress method with degree of creep are presented. this paper suggests that engineers should use the initial stress method with degree of creep to estimate the influences of creep on high - rise buildings and large span buildings on the basis of conceptual design

    基於現有的試驗資料，高層及大跨度民用建築的徐變分析只能參照橋梁結構中的徐變系數方法或水工結構中的徐變度方法進行.從徐變系數的定義出發，利用積分中值定理和疊加原理，推導並修正了加載齡期與起算齡期不同時徐變收縮應變增量的表達式，對比了應用徐變系數分析徐變的有限元法和應用徐變度分析徐變的初應變法在效率和精度上的差別，並建議應從概念設計的角度出發，採用徐變度的初應變法來估算徐變對高層及大跨度民用建築的影響
  8. Abstract : creep analysis methods of high - rise buildings and large span buildings can only refer to creep coefficient method in bridge engineering or the method of degree of creep in hydraulic construction engineering under the present experiment conditions. in this paper, the incremental expressions of concrete creep and shrinkage strain when the initial computational age is not the same as the loading age are derived and corrected from the concept of concrete creep coefficient and the mean value theorem of integral and the principle of superposition. the differences of efficiency and accuracy of creep analysis between the finite element method with creep coefficient and the initial stress method with degree of creep are presented. this paper suggests that engineers should use the initial stress method with degree of creep to estimate the influences of creep on high - rise buildings and large span buildings on the basis of conceptual design

    文摘:基於現有的試驗資料，高層及大跨度民用建築的徐變分析只能參照橋梁結構中的徐變系數方法或水工結構中的徐變度方法進行.從徐變系數的定義出發，利用積分中值定理和疊加原理，推導並修正了加載齡期與起算齡期不同時徐變收縮應變增量的表達式，對比了應用徐變系數分析徐變的有限元法和應用徐變度分析徐變的初應變法在效率和精度上的差別，並建議應從概念設計的角度出發，採用徐變度的初應變法來估算徐變對高層及大跨度民用建築的影響
  9. The study on the auto - detecting system of analog measuring instruments presents several optimum algorithms to realize the quick recognition of the dial pointer and calibration lines of detected dial. by using these efficiency algorithms, both the accuracy and the real - time quality have been improved

    採用數字圖像處理技術進行指針式儀表的精度檢定可以大大提高檢定效率，提高檢定精度，減少人為因素干擾，使檢定過程更具客觀性，檢定結果更準確，因此具有廣泛的市場前景。
  10. This system makes a breakthrough of traditional incremental motion control theories. it breaks the strict ambit between continuum and discrete, speed and position, rotation and step, the space vectors of stator magnetic field and rotor magnetic field are selected as the main control objects, incremental motion control and motion control are combined organically to make incremental motion control develop to large capability, high efficiency, high precision

    這其中的交流步進控制理論打破了傳統的增量運動控制思想，打破了連續與離散，速度與位置，旋轉和步進的嚴格界限，以定、轉子磁場空間矢量為主要控制目標，將增量控制與運動控制有機的結合起來，使增量控制向大容量、高效率、高精度方向發展。
  11. To solve this problem, a method using double speed loops, combined with technique of nonlinear acceleration compensation is brought forward and applied in the servo system. very high stabilization accuracy is acquired

    針對這一問題，提出了採用速率環和穩定環的雙環控制方法，並結合非線性加速度補償技術，只採用一級穩定即實現了較高的穩定精度。
  12. It can be used in any complex environment, can locate all paths from transmitter to receiver which avoid redundant calculation, and it is a standard 3 - d forecast model ; in addition, it is a point to point ray tracing method based on specular theory which do n ' t carry out the receive test ; furthermore the model adopt the reverse arithmetic which exert the tree concept in data frame and establish a virtual fountain tree permanently, the proagmme can back - search the virtual fountain tree when it is running. these operation increase the calculate speed and it result in the higher receive efficiency and precision. the thesis design a programme to compare the prediction results based on ray tracing method of virtual fountain tree between the measurement results and prediction results based on the other transmittion models. the comparsion result indicate the new model is a better model

    它可應用於任何復雜的傳播環境中，能找到發射機到接收機之間的所有電波傳播路徑而無須冗餘的計算，是一種準三維的預測模型；另外，從本質上講，它仍然是一種基於鏡像理論的點對點的射線跟蹤法，所以它無須進行接收測試；而且由於採用了反向演算法，運用數據結構中多叉樹的概念，先確定需要計算的場點位置，找出所有能從源點到達場點的射線，並且可一次性建立一個虛擬源樹，以後每次的計算只要通過對該樹進行後序遍歷即可，大大提高了運算速度，因而有較高的接收效率與精度。本文對該模型進行了相應的模擬，並將其預測結果與實測結果以及基於cost231經驗性模型和基於強力射線跟蹤確定性模型的預測結果進行了比較，結果表明了該模型的優越性。
  13. According to the actual situation and performance requirements, how to impair the influence of the disturb torque and the uncertainty of the system object model and how to improve stabilization and tracking accuracy are the principal difficulties in this paper. to solve these problems, a method by using mutative - plus and high - order compensation is brought forward and design by adopting h mixed sensitivity method in the velocity loop, then the weighting function selection is discussed, and the concrete selection principles are given in details

    根據本系統的實際工作情況和性能指標要求，通過分析指出，如何克服機（艦）載條件下干擾力矩的影響及系統對象模型的不確定性是本系統中提高穩定精度和跟蹤精度要重點解決的問題，針對這一問題，提出了在速率穩定環採用變增益的串聯高階校正設計控制器和利用h _混合靈敏度方法進行控制器設計的方法，詳細討論了加權函數選擇的問題。
  14. The algorithm in this paper works efficiently at a lower error. in most applications it is impossible to realize the fast visualization and fly - through of terrain at a given accuracy

    本文中的演算法效率高、誤差較小，在給定精度的情況下，能夠實現地形的快速顯示及實時瀏覽，可滿足大多數情況下的工程應用。
  15. The work done in this task make the optimize design lubricating system change the idea and article into actual application software at the first time. hence the computer aided optimize of lubricating system is turned into reality

    本課題所做的工作使得潤滑油系統的優化設計在一定程度上上升為實實在在的應用軟體，使得潤滑油系統的計算機輔助優化設計從此變得實在可行，提高了設計的效率和精度。
  16. Secondly, simulation results aim at some passive devices, such as mmi and y - branch are given

    在保證一定精度的前提下，這種方法能夠平滑地處理soi材料的折射率突變界面。
  17. The computer vision and image processing technology being used in the exact measurement is a new method, and it has many good points such as : high precision and efficiency

    在精密測量中採用計算機視覺以及圖象處理技術是一種比較新的方法，它擁有其他方法所不具有的優點：檢定精度、效率都較高。
  18. In view of the specific property of thermopower processes and these problems existing in tuning pid controllers, a multifunctional optimization tuning instrument for thermal process control ( motc ) has been successfully developed and widely applied because of its qua1ities in past years, which can provided the engineers a powerful tool to handle the practical problem of tuning coittroller so as to get a desired controi results with the optimum controllers

    針對熱工過程的特點，我們研製出motc （ multifunctionaloptimizationinstrumentfortuningcontrollers ）系統，對于提高調節器參數的整定精度，節省現場調試時間，提高系統自動投入率和控制質量，提高機組的安全性和經濟性發揮著重要的作用，取得了顯著效益，展現出良好的推廣應用前景。
  19. But, pso convergence ' s speed become slow in latter iterative phase, and pso is easy to fall into local optimization. at present, some scholars improve base pso mostly using 3 methods : disperse algorithm, increase convergence speed, enhance particle ' kinds. in the paper, i put forward 2 methods aiming at local best resutl but not whole best result. i modify base pso using the last method. some scholars put forward times initializations, so i select best result after circulating some times to be a parameter of formula. first, put particle into some small region, and ensure every region having one paticle at least. second, every region ' s particle has probability transfer other regions. although increase running time, enhance particle ' kinds, decrese the probability of convergence far from whole best result. nerms ( network educational resource management system ) is one of the research projects in the science and technology development planning of jilin province. the aim of nerms is to organize and manage various twelve kinds of network educational resources effectively so that people can share and gain them easily and efficiently, so as to quicken the development of network education

    但粒子群演算法仍存在如下不足:首先在多峰的情況下，粒子群有可能錯過全局最優解，遠離最優解的空間，最終得到局部最優解;其次在演算法收斂的情況下，由於所有的粒子都向最優解的方向群游，所有的粒子趨向同一，失去了粒子間解的多樣性，使得後期的收斂速度明顯變慢，同時演算法收斂到一定精度時，演算法無法繼續優化，本文對原始粒子群演算法提出了二點改進方案: 1 .演算法迭代到一定代數后，把此時找到的全局最優解當作速度更新公式的另一參數（本文稱之為階段最優解）再進行迭代; 2 .每次迭代過程中除最優解以外的每個粒子都有一定概率「變異」到一個步長以外的區域，其中「變異」的粒子在每一維上都隨機生成一個步長。
  20. The result shows that the efficiency and precision of prediction for clean data are satisfactory. although there are some errors in the prediction of noisy and chaotic data, the result is acceptable

    實驗結果表明，當數據無噪聲時，預測效率與精度都非常高；在處理帶噪聲，並呈現混沌特性的數據時，雖有一定的誤差，但預測結果還是在可以接受的范圍內。
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