測速歷時 的英文怎麼說

中文拼音 [cèsùlìshí]
測速歷時 英文
velocity-measuring duration
  • 測 : 動詞1. （測量） survey; fathom; measure 2. （測度; 推測） conjecture; infer
  • 速 : Ⅰ形容詞（迅速; 快） fast; rapid; quick; speedy Ⅱ名詞1 （速度） speed; velocity 2 （姓氏） a surna...
  • 歷 : Ⅰ名詞1 （經歷） experience 2 [天文學] （歷法） calendar 3 （歷書; 年鑒; 歷本） almanac Ⅱ動詞（經...
  • 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...
  • 測速 : logging speed
  • 歷時 : last; take
  1. This paper starts the research of the liquid floated pendulous accelerometer testing system according to the engineering. at first, this paper gives the brief introduction of the history and present status of accelerometer and its testing technology, the working principium and math model of the liquid floated pendu - lous accelerometer, and then, decides the binary width pulse force retrim loop as the design proposal of testing system, researches the transfer function of every part in the system emphasizly, analyses the stability of the whole accelerometer testing system from the angle of control theoretics by the open loop transfer function of system, and designed the correcting net, analyses the basal problems such as resolution, sampling restraint, precision and so on, designs the hardware testing circuits such as preamplification, band - pass filter, alternating amplifier, phase sensitive demodulatorn, pulse - width modulation, frequency scale circuit, moment current generator. finally, using the graphics program language labv - iew which is designed for testing field especially by ni accomplishes the solfware design of testing system, realized the testing functions

    首先對加速度計及其測試技術的發展歷史和現狀，液浮擺式加速度計的工作原理和數學模型等作了簡要的介紹，然後確定了以二元調寬脈沖再平衡測試迴路為設計方案，並從控制理論的角度進行了分析，著重研究了系統中各部分的傳遞函數，利用系統開環傳遞函數分析了系統的穩定性，同時設計了系統的校正網路;分析了二元調寬脈沖再平衡測試迴路的解析度、采樣約束以及測試精度等基本問題，並按照系統分析的結果設計了包括前置放大、帶通濾波、交流放大、相敏解調、脈寬調制、頻標電路以及力矩電流發生器等測試系統各部分硬體電路，驗證了電路的正確性，最後按照測試系統的要求，採用了美國ni公司專為測試領域所開發的虛擬儀器工具? ? labview作為測試軟體開發工具，利用該圖形化編程語言完成了測試系統軟體部分的設計，實現了測試功能。
  2. Z - tranformation augmented fasf algorithm proposed in the dissertation can reduce the search space of integer ambiguity effectively, improve the effiency and real - time processing ability of integer ambiguity resolution ; it is essential to analyse the reliability of integer ambiguity after it was fixed, the ratio test algorithm proposed in the dissertation can reduce the time to fix new integer ambiguity after wrong fixes are detected ; to reduce further the number of epochs required for ambiguity resolution, that the baseline length constraint information which acts as observables is used to do kalman filtering to speed up ambiguity resolution is proposed

    本文提出的z變換增強fasf演算法能有效的減小模糊值搜索空間，提高整周模糊值解算的速度和實時性；整周模糊值確定后，需要對整周模糊值的可靠性進行分析，本文提出的比率檢測演算法能有效的減少整周模糊值錯誤確定后整周模糊值二次解算所需要的時間；為了進一步減少整周模糊值解算所需的歷元數目，本文提出把基線長度先驗信息作為觀測量進行卡爾曼濾波輔助整周模糊值求解。
  3. The research of this paper includes : ? high - speed photography and flash x - ray radiography are both used to capture the process of al shell ' s great deformation under low pressure. front illuminations are used to get the development of the fracture on the al shell. the relative energy release is analyzed from overpressure curves measured with some sensors

    本文的研究內容主要包括： ?在受試炸藥經歷低應力大變形過程的susan試驗中，同時採用高速攝影、閃光x射線照相對彈體的撞靶過程進行了拍攝，得到了殼體膨脹變形過程圖像，並使用前照明技術觀察到了鋁殼表面產生的裂紋及其發展變化過程；從壓力傳感器測量的空氣沖擊波超壓曲線，獲得反應釋放總能。
  4. In this paper, the contents and the methods of the impacting test to the particle separator vortex blades by the foreign object are introduced, the ultra dynamic strain device is used to carry on the measure of this experiment and obtained the strain - time history, three dimensional coordinate measuring method is used to measure the remaining distortion of the vortex blade, and the high speed photographic apparatus is used to carry on the photography of the impacting experiment

    本文介紹了對粒子分離器渦流葉片進行外物撞擊試驗的內容和方法，採用超動態應變儀對外物撞擊試驗進行了測量，獲得了渦流葉片不同外物撞擊下的應變-時間歷程，採用三坐標法測量了外物撞擊后渦流葉片的殘余變形，並採用高速攝影儀對外物撞擊渦流葉片的全過程進行了拍攝。
  5. The study solves engineering problem as follows : ( 1 ) the systematic study on the historical course of xigeda strata deposit and geologic environment includes strata, lithologic characters and constitution et in the liangshan and panzhihua region. the results show that the xichang - panzhihua express way is controlled by the anninghe fault and the xigeda fault, the earthquake frequently happen in the region of pass, the different sedimentation number is more great, they effect the road building, safety in operation and structure belong road ( 2 ) because in some place the xigeda strata is foundation and roadbed, the study on the basic properties of the xigeda strata include density, moisture content plastic and liquid limit graduation. the results show that the xigeda strata is deposition in lake, the main component is mudstone and sandstone, the fine particle is main, it has some viscosity, the moisture content of mudstone is different the it of sandstone, the other property are likeness. the xigeda strata has no dilatation on total, some claystone have low and medium dilatation ; ( 3 ) the study on the basic properties of xigeda filler include the composition of matter the biggest standard dry density, the optimum moisture content the results show that xigeda filler can use as road material, it is well grade filler and admixture filler on essence, its compaction index should change in different place because the property is controlled by mudstone and sandstone that change is great in different place ; ( 4 ) the study on the xigeda filler craft used as express way roadbed, includes suitable thickness, compaction numbers and methods and equipment choice et

    公路沿線廣泛分佈有昔格達地層，昔格達地層能否用作高速公路路基填料，國內沒有先例，本論文就是結合導師的科研項目，在非典期間，現場長達5個月的工作，完成了從試驗、現場施工工藝到路堤分層沉降監測等工作，是面對生產實際，認識昔格達地層的性質和其作為地基、路基和填料應用中面臨的問題進行的研究。主要的研究內容有：對攀西地區地層巖性、構造等地質環境和昔格達地層的沉積歷史過程作了系統的分析，研究表明西攀高速公路主要受安寧河斷裂和昔格達斷裂影響，通過地區地震活動頻繁，差異沉降較大，對公路建設、安全運行和沿線構築物設計有較大影響；由於昔格達地層在有些路段作為地基、有些作為路基，對其基本性質進行了研究：包括天然密度、含水量、塑液限、顆粒級配等指標的試驗研究。研究成果表明：昔格達地層為湖相沉積，主要為砂巖和泥巖，它以細粒組為主，同時粘粒的存在，使其具有一定粘性。
  6. The acceleration time process of road surface plainness is got by using two integral calculus of the acceleration time process which is measured by five - wheel equipments. this data is worked as the input of the road surface for theoretical calculation. the result of experiments mostly fits that of calculation, and then the multiple - acceleration power spectrum distribution of the artillery and tractor are acquired

    在瀝青路面、破損鋪磚路和砂石路面上以不同速度進行了平穩隨機激勵牽引試驗，用五輪儀測量得到的加速度時間歷程進行兩次積分的方法得到路面不平度的時間歷程做為路面輸入進行對應的理論計算，試驗結果和計算結果基本相符，得到了火炮和牽引車多個加速度功率譜分佈。
  7. The corresponding variation of olltput voltage due to the change of total laser intensity is measured by a photo detector. a displacement - time curve can be obtained by calibrating the re1ationship between block position and output voltage of the photo detector. through the use of simple mathematical operation, the bird - shell velocity and acceleration histories can be determined, and therefore the bird - shell instantaneous velocity at any points within the measurement range can be obtained

    該系統發射的一片狀激光受運動鳥彈的依次阻擋后，相應的光強度變化將被測出並轉換為位移時間曲線，經過簡單的數學運算，該系統能用來確定鳥彈速度和加速度的時間歷程，因而可確定鳥彈在被測區域內任一點的瞬時速度。
  8. The software also can be used as a diesel engine vibration real - time monitoring system, it can display the vibration wave when the diesel is working, analyze the real - time vibration data, and print the analyze results in reports forms

    同時，該系統還能夠用於柴油機振動狀態監測，對振動波形進行實時顯示，實時分析，對歷史振動加速度生成報表等。
  9. The idea behind it is to approximate the object with a simpler bounding volume that is a little bigger than the object. in building hierarchies on object, one can obtain increasingly more accurate approximations of the objects. so during traversing bounding volume hierarchy, it speeds up collision detection by prune away primitive pairs, which will not intersect clearly though rapid intersection test between bounding volumes and just deal with those whose bounding volume is intersected

    層次包圍盒方法是解決碰撞檢測問題固有時間復雜性的一種有效的方法，它是用體積略大而幾何特性簡單的包圍盒來近似地描述復雜的幾何對象，並通過構造樹狀層次結構來逼近對象的幾何模型，從而在對包圍盒樹進行遍歷的過程中，通過包圍盒間的快速相交測試來及早地排除明顯不可能相交的基本幾何元素對，而只對包圍盒重疊的部分元素進行進一步的相交測試，以提高碰撞檢測的速度。
  10. But the standard mc has some shortcomings : firstly, the standard mc picks up isosurfaces by threshold, however, threshold segmentation is invalid for picking up tissues or organs from some medical images ; secondly, the standard mc pocesses cubes one by one, that is to say, all the cubes will be checked, and the algorithm spents 30 % - 70 % of time to check the null units, so we need a reasonable data structure to travel the space data and accelerate the checking or filting of null units ; thirdly, the standard mc has a large scale of triangles, normally, the tissue or organ reconstructed includes hundreds of thousands so much as millions of triangles, this means it hardly to execute real - time rendering or interaction ; lastly, the standard mc can not get the very smoothly surface mesh, and there will be some unexpected accidented cases, especially in the case of big errors in oringinal data

    但是標準mc演算法存在較大的問題:標準mc演算法實質上是通過閾值分割來提取等值面，閾值分割對某些醫學圖像的組織或器官的提取難以得到較好的效果;標準mc演算法是逐個移動立方體來進行處理，就是說對所有的立方體都要進行一次檢測，演算法執行中30 % ~ 70 %的時間用在對空單元的檢測上，因此需要有一種合理的數據結構對空間數據進行有效的遍歷，以加速對空單元的檢測和過濾;標準mc演算法產生了大量的三角面片，一般重建的組織或器官包含數十萬甚至上百萬的三角面片，難以實現實時的繪制和交互操作;標準mc演算法得到的表面網格並不光滑，會有一些不期望的凹凸，特別是在原始數據有較大誤差的情況下尤其突出。
  11. Analyze and estimate the development of mobile communication industry. then we analyze the success experience of ntt docomo ' s i - mode, the failure teaches of wap promotion in europe, the - competition situation and the advantage & weakness of china mobile group, the character and development situation of china mobile group ' s data services : s ms & gprs. according to market subdivision & orientation, business operation mode, product price - making, product development, business innovation and strategic orientation of the company, we bring up six strategies that china mobile group should take in mobile data service development at present, that is, absorb icp in all aspects and develop different and creative applications & contents fast, establish the object market as soon as possible and provide services according to the demand of different market, make & apply the key technical standards and bring up technical demand to cell phone manufacturers & the other cooperation colleagues, quicken the construction of gprs network & data platform, dominate & promote the development of global mobile business by entering an alliance with the leading enterprises in the world, promote the reorganization of mobile data service section to insure the successful practice of related strategies

    本文首先對中國目前的通信行業的演變歷程進行回顧和分析，特別對移動通信行業的發展進行了全面的分析和預測，通過對nttdocomoi - mode成功經驗及歐洲wap推廣失敗教訓的剖析，結合中國移動通信集團公司當前面臨的競爭態勢以及自身的優勢和弱點，並針對中國移動通信集團公司兩大移動數據業務sms和gprs的特點和發展現狀，從市場細分定位、商業運營模式、產品定價、產品開發、業務創新、運營商的戰略定位等方面，提出了近期中國移動通信集團公司在發展移動數據業務時應採取的六大應對策略，即：廣泛吸納icp ，大力開發豐富多彩、有創意的應用和內容；盡快確定目標市場，提供針對細分市場需求的服務；加快制定並實施關鍵技術標準，對手機製造商和其他合作夥伴提出技術要求；加速gprs網路及數據平臺建設；通過與全球領先的企業建立合作聯盟，主導並推動全球移動業務的發展；推進數據業務部門的組織重組，確保相關戰略的成功實施。
  12. Finally, system software exploiture is based on kingview 6. 5 and we used three - dimensional sculpt to simulate locale equipments and realized dynamic simulation, real - time display and memory, historic query, upon or under parameter alarm display, alarm query and historic report forms print, and we can realize internet management and view directly etc. according to industry ethernet setting, firewall ’ s install and high - speed transmission it can satisfy system ’ s security, credibility and real - time in coal mine which is new scada system of mine monitor and control warming system

    最後，利用「組態王」軟體進行系統開發，生動的描繪現場設備並動態模擬設備工作，實現實時數據顯示與存儲，歷史數據查詢列印，超限或低限報警，報警查詢，同時能實現網內權限管理，局域網內直接訪問數據等。通過工業以太網路軟體設置和系統防火墻的安裝以及高速傳輸質量能使系統在實時性、安全性和可靠性等方面滿足煤礦實時監測系統應用的要求，該系統可以說是新一代scada煤礦實時監測監控系統。
  13. The portable infrared press instrument has the following characteristics : has small volume and weight and carry easily ; use a keyboard to input orders and display the corresponding information on the lcd display for the sake of the user ' s convenience ; has big data capacity and can collect 30 press measure instruments all the data which have stored for a week ; show the real - time date and time ; communicate through the infrared with speed of 2400kbps ; has the intrinsically safe circuit and can be safely used under coal mine

    本文所研製出的紅外線壓力手抄器的主要特點是：體積小、重量輕、易於攜帶；使用鍵盤輸入命令，並在液晶顯示屏上給予相應的提示，極大地方便了使用者；數據容量較大，可一次採集30臺壓力測試儀一周內存儲的壓力數據；全日歷實時時鐘顯示；紅外數據通訊功能，傳輸速率為2400kbps ；本安設計，可安全的應用於煤礦井下。
  14. Through real - time, accurately and fast measuring and controlling of the parameters such as pressure, torsion and rotational speed, the system can calculate out the shim thickness needed with axial according to the size relations of measuring platform, display the shim ' s storehouse number and their parameters, draw the wave form trends as well as store and type the historical data

    系統通過對壓力、轉速等參數實時、準確、快速的測控，根據基準測量平臺的尺寸關系能準確的計算出軸向所需的墊片厚度，並能實現系統所要求的墊片庫號及參數值實時顯示、波形動態繪制、歷史數據存儲和列印等功能。
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