轉換準確度 的英文怎麼說

中文拼音 [zhuǎnhuànzhǔnquèdù]
轉換準確度 英文
transfer admittance
  • 轉 : 轉構詞成分。
  • 換 : 動詞1. （給人東西同時從他那裡取得別的東西） exchange; barter; trade 2. （變換; 更換） change 3. （兌換） exchange; cash
  • 準 : Ⅰ名詞1 （標準） standard; guideline; criterion; norm 2 （目標） aim; target Ⅱ動詞1 （依據; 依照）...
  • 確 : 形容詞1. （符合事實; 真實） true; reliable; authentic 2. （堅固; 堅定） firm
  • 度 : 度動詞[書面語] （推測; 估計） surmise; estimate
  • 轉換 : change; transform; convert; switch
  1. Compared with primary second sampling a / d converter, it realizes digital feedback by digital circuit and does n ' t adopt high accuracy d / a converter with complex technology and high price. it has many excellent qualities, such as high - integration, high - accuracy, widely used, low - price. it can be widely used in test and measure system, scientific instrument, iatric instrument, automatic test system etc. so popularizing this new type a / d converter has very significant meaning

    與原有的兩次采樣a / d轉換器相比，用數字電路實現數字反饋可不用技術復雜、價格昂貴的高準確度d / a轉換器，具有集成度高、準確度高、適用性強、價格低等優點，可廣泛應用於測量測試系統、科學儀器、醫療儀器、稱重儀器、自動測試系統等。
  2. At first we improve the methods of iris image preprocessing, including an efficient arithmetic of evaluation iris images, an improving method of locating iris, calibrating iris image by the translation of coordinate and the circular shift of code, a eatimate of the background illumination by bicubic spline, and the image enhancement by the dual tree complex wavelet transform. next we designed the recognition arithmetic based on the location of the local maxima of the wavelet transform modulus. in the thesis lots of simulation are performed by means of matlab and visual c + +

    首先改進了虹膜預處理方法，實現了一種快速高效的虹膜質量評價演算法;設計了一種改進的兩步虹膜定位演算法，準確的定位了虹膜的內外邊界;利用坐標轉換和編碼的循環移位實現了對虹膜圖像的配準;利用雙三次樣條函數擬合虹膜圖像背景，去除了非均勻光照對虹膜識別的影響;使用二分樹復數小波方法增強了虹膜圖像的對比度;在識別演算法方面，本文設計了一種「基於小波模極值點位置的虹膜識別演算法」 。
  3. Sensitive element is one of the important to measure the concentration of mathane, and it " s export is a little voltage signal, little signal amplify circuit is to transform the analogue signal to digital signal, display circuit is to display the concentration of mathane, monitoring circuit is to monitor the overstep limit of mathane concentration. the feature is new design, accurately measure parameter, convenient to operate and so on

    其中cpu是監控儀的核心，完成數據採集、處理、輸出、顯示等功能；敏感元件是準確檢測甲烷氣體含量的主要元件之一，其輸出是與甲烷濃度相對應的電壓信號；小信號放大電路則是用來放大敏感元件輸出的電壓信號； a d轉換電路把放大了的電壓信號由模擬信號變為數字信號送入cpu ；顯示電路則顯示實時甲烷濃度；報警電路對超限甲烷濃度進行報警。
  4. According to the request of this subject, we have developed the system hardware and software for the slave device and the inspection software running on the pc. in this paper all of the followings is illustrated detailedly, such as the research on the principles of measurement and its realization, three means of water - level measurement that are separately based on photo electricity coder, pressure sensor and potentiometer ; selection of the microchip, we choose an advanced integrated soc ( system on chip ) microchip c8051f021 as the main controller ; realization of signal sampling, processing and its conversion in the mcu ; application of high precision 16 bits adc cmos chip - - ad7705 in our system, designing its interface with the microchip and relevant program ; using a trickle charge timekeeping chip ds1302 in the system which can provide time norm and designing of its i / o interface and program ; additionally, a 4 ~ 20ma current output channel to provide system check - up using ad421. in the system, ad421, ad7705 and the microchip compose spi bus ; to communicate with the master pc, here we use two ways which are separately rs232 and rs485 ; moreover, there are alarm unit, keyboard unit, power supply inspection unit and voltage norm providing unit in the system

    針對研製任務的要求，課題期間研製了下位機系統硬體和軟體，開發了上位機監控軟體，其中所作的具體工作包括：測量原理的研究和在系統中的實現，在本次設計中用三種方法來進行水位測量，分別是旋轉編碼器法、液位壓力傳感器法和可變電阻器法；主控晶元的選擇，我們選用了高集成度的混合信號系統級晶元c8051f021 ；實現了信號的採集和處理，包括信號的轉換和在單片機內的運算；高集成度16位模數轉換晶元ad7705在系統中的應用，我們完成了它與單片機的介面設計及程序編制任務；精確時鐘晶元ds1302在系統中的應用，在此，我們實現了用單片機的i o口與ds1302的連接和在軟體中對時序的模擬，該晶元的應用給整臺儀器提供了時間基準，方便了儀器的使用；另外，針對研製任務的要求，還給系統加上了一路4 20ma模擬信號電流環的輸出電路來提供系統監測，該部分的實現是通過採用ad421晶元來完成的，本設計中完成了ad421與單片機的spi介面任務，協調了它與ad7705晶元和單片機共同構成的spi總線系統的關系，並完成了程序設計；與上位機的通信介面設計，該部分通過兩種方法實現： rs232通信方式和rs485通信方式；系統設計方面還包括報警電路設計、操作鍵盤設計、電源監控電路設計、電壓基準電路的設計。
  5. Percentages of more than 20 elements in rock can be given by geochemical well - log, and percentages of minerals in rock can be calculated based on established model of rock constitution and conversion ratio between elements and minerals, then density of framework of rock can be calculated

    摘要地球化學測井能給出二十余種元素的含量，根據礦物組合模型、元素含量與礦物的轉換關系可以得到巖石的礦物種類及其百分含量，然後得出比較準確的巖石骨架密度。
  6. However, there also exist more unsuitable behaviour and thinking : the fitting degree is small and low ; the expectation about future isn " t stable and uncertain, their psychological pressure is great ; contingency comes into being, farmers can " t be sure of the happenings, they have to follow others and think they were living happily in the old days an d now they aren " t ; cultural collision is great, they feel hard to follow the change of time ; the system is changing. their living pressure is large ; the felling of living on the edge is obvious with the emergence of gap of the rich and the poor ; they feel the human feeling is disappearing and become alone in the competing

    但在經濟體制改革中，農民表現出的不適應性行為與心理更多，既：對市場經濟改革的適應程度比較低；預期不確定、不穩定，農民心理負擔加重；偶然性出現，農民難以準確把握未來，懷舊、從眾行為與心理難以避免；多元文化沖突加劇，農民心理適應難度大；體制轉換，農民生存壓力增大；窮富差距拉大，農民邊緣感增強；競爭加劇，農民人情淡漠感、孤獨失落感加大等。
  7. As far as the system observation for accuracy evaluation of carrier rocket is concerned, there may exist different types of observed data and priors. heterogeneous information means that the different information describing the different characteristics of the same object. since all of the information is relevant to the same object, the fusion is possible. it is a key problem that how to fuse the heterogeneous information to obtain the better evaluation result. therefore, the different heterogeneous information and data is thoroughly studied, moreover, the mathematical description for information fusion of different parameter priors and data is constructed in this paper. based on their relationship between different parameters, indirect prior and observation data is transformed into prior in impact point observation space, which is fused with original prior by weight determined by maximum entropy rule to obtain the mixed posterior distribution. therefore, the test results can be given by combining posterior distribution and impact error observed data. then its application on evaluating guidance systematic error is elaborated as it applies trajectory tracking data, test value of coefficients of guidance instrumentation systematic error, impact point observation data and prior. especially, the advantage of this method lies in its application in case that guidance instrumentation systematic error may not be computed precisely. finally a detailed example on evaluation of carrier rocket is given to verify the theory

    為充分利用運載火箭觀測中的不同觀測空間和過程的信息來進行精度評估，針對該背景建立了異質先驗融合的數學描述.研究了飛行試驗中不同觀測空間和過程的異質先驗信息和數據，基於不同觀測過程的解析關系，將間接過程的先驗和觀測數據算出的后驗分佈轉換成落點觀測空間上的先驗，與原落點的先驗進行了最大熵加權融合，得到混合后驗分佈，從而結合落點觀測數據給出評定結果.在無法解算出精確的制導工具誤差系數的情況下，這種方法充分利用了彈道跟蹤數據、工具誤差系數的地面測試先驗值、落點先驗及落點數據，穩健性更好，準確性更高
  8. The thesis discusses the fuzziness of translation norms, understanding and expression in english - chinese or chinese - english translation ; it also exemplifies the compatibility of language fuzziness and translation accuracy, and their transformation under certain conditions and then points out that both the language fuzziness and accuracy should not be overlooked in translation

    摘要論述了翻譯標準、翻譯理解及翻譯表達的模糊性，闡明了語言的模糊性與翻譯轉換的精確性應該是相輔相在、相互滲透、並在一定的條件下可以實硯轉化的，因而翻譯時對語言的精確性和模糊性不可偏度、不可誇大，才能創成好譯文。
  9. This paper gave the following conclusions ? ational curriculum standards are necessary and important for keeping the quality and level of curriculums and instructions in national wide ; national curriculum standards should face the whole country and possess the quality for generalization, and meanwhile, it should allow the multiplicity and flexibility in order to have the certain function and practical significance ; national curriculum standards should have the core framework or the themes which has the quality for instruction and manipulation ; during the development of the standards, it is important to make cooperation with the government educational department, professional groups, teachers, etc. in order to improve the quality of the standards and their acceptance of the standards ; the implementation of national curriculum standards is an up - down transition and the effective interactions among all the stages are very important

    本文認為國家課程標準對于在全國范圍內維持課程與教學的水平和質量是必要的和重要的；國家課程標準必須面向全國，具有可以普遍推廣或應用的性質或價值，同時又要允許多樣性與靈活性的存在，才能具有較為確定的作用和實踐意義；國家課程標準要有確定的核心框架或主題內容，要注意其指導性與可操作性；在國家課程標準研製中，要注意政府教育主管部門、專業團體、教師等的多方合作與協同努力，提高標準研製的質量與標準的認同程度；國家課程標準的應用過程，有一個自上而下的轉換過程，因此，各層面的工作的有效轉化與互動相當重要。
  10. How can a private enterprise become vivid in the sustainable development. on one hand, in accordance with the principle of " openness. equity. honesty ", government authorities should adjust the goals of policies and systems. convert their functions. weaken the administrative interference and start an impartial taxation system, financial system and financial market permission system so as to maintain the role of private enterprises in china ' s economy, while on the other hand, as an economic existence, the private - owned enterprise should pay attention to adjusting industrial structures, clarify its industrial orientation, focus on the main industry, carry on a business strategy centered on specialization, carry out industrialized production standards. quicken the pace in hi - tech industrialization. break through the difference between the operation right and property right, adjust structures of human resources and establish a scientific business manage

    怎樣刁』能使私營企業擁有持續發展的生命力呢?對于政府部門而言，要維護私營企業在中國經濟中的作用與地位，必須按照「公平、公正、公開」的原則來調整政策和制度的取向，盡快轉換政府職能以弱化行政二}一預，實行公平的稅賦制度、財會制度和金融市場準入制度，為私營經濟的發展營造一個良好、寬松的體制環境。而私營企業作為一個經濟實體，則應注意調整企業的產業結構，明確產業定位，突出主業，實行以專業化為主的經營發展戰略，切實落實工業化生產標準，加快高新技術產業化的步伐;同時要敢於打破產權界
  11. For precision ac voltmeters requiring calibration at very high accuracy, ac - dc transfer technique will be used

    若要求以高準確度校正精密交流電壓表，則本所會採用交直流轉換技術。
  12. The high speed of its a d converter and high accuracy make it equally suitable for fast, precise force measurements in inspection, control and safety devices and for use in weighing applications

    該元件有高速的a d轉換和高精度，適用於檢查控制和安全裝置中快速準確的力測量，同時也可以用於稱重測量。
  13. In the course of design, we fully consider the actual conditions on the railway and take a series of corresponding measures to the concrete problem. such as we select high - accuracy microconvertor and have the converted function in succession data collecting system chip aduc812, design v / f circuit and external a / d circuit. in anti - interference of the hardware, we try to disperse each function module to avoid interfering each other, adopt photoelectric isolated technology to dispel the circuit connection of input and output. in controlling we import arithmetic mean into strain wave algorithm and real computing technology of virtual value for sample treatment of data, that is using the software to smooth away interfere error and to calculate actual value, thus it makes the precision of the data improve greatly

    在設計過程中，根據系統要求，充分考慮鐵路上的實際情況，針對具體問題採取了一系列的相應措施，如在器件選擇方面選用高精度microconvertor系列、具有adcdma連續轉換功能的數據採集微控制器晶元aduc812 ，設計了v f變換電路和外部a d轉換電路；在硬體抗干擾方面，將每個功能模塊盡量分散獨立開來以避免相互干擾、採用光電隔離技術消除輸入輸出通道上的電路聯系；在控制方面對于采樣數據的處理引入了算術平均值濾波演算法和真有效值的計算方法，即通過使用軟體來濾除系統中有干擾造成的誤差並計算真值，從而使數據的準確性得到極大地提高。
  14. Intelligent tri - phase ac active reactive power instrument adopt advanced microprocessor carry out smart control, and to the inputed tri - phase ac voltage and current signal carry out accurate measurement, through cpu automatically count out the tri - phase ac active reactive power value total power, conduct clear and visual display by high brightness led display tube, it can be simultaneously transferred to standard voltage current signal to transmit output, and have super - limit control alarm standard serial communication function etc

    智能三相交流有功無功功率儀表採用先進的微處理器進行智能控制，對輸入的三相交流電壓與電流信號進行精確的測量，經過cpu自動計算出三相交流有功無功功率值總功率，由高亮度led數碼管進行清晰直觀的顯示，同時可轉換成標準電壓電流信號變送輸出，並具有超限控制報警標準串列通訊等功能。
  15. Adopt advanced microprocessor carry out smart control, and to the inputed tri - phase ac voltage and current signal carry out accurate measurement, through cpu automatically count out the tri - phase ac active reactive power value total power, conduct clear and visual display by high brightness led display tube, it can be simultaneously transferred to standard voltage current signal to transmit output, and have super - limit control alarm standard serial communication function etc

    採用先進的微處理器進行智能控制，對輸入的三相交流電壓與電流信號進行精確的測量，經過cpu自動計算出三相交流有功無功功率值總功率，由高亮度led數碼管進行清晰直觀的顯示，同時可轉換成標準電壓電流信號變送輸出，並具有超限控制報警標準串列通訊等功能。
  16. Digital feedback twice sampling a / d converter is based on common accurate dual integral a / d converter. during the second sampling, through the control logic, programmable counters and switch control, realize digital feedback and substitute primary analogue feedback realized by high accuracy d / a converter

    在第二次采樣中，通過控制邏輯、可編程計數器和開關控制來實現數字反饋，以取代原有的兩次采樣a / d轉換器中通過高準確度d / a轉換器所實現的模擬反饋。
  17. The experimental results show that it is feasible with the aids of chemical change that could transfer non - electrochemical active base substances in oils to electrochemical active cu ( superscript 2 + ), and the method can meet with the demand to determination feasibility, repeatability and accuracy, it has the following advantages : high automatization, simple operation, short test time and suitable for determining oils on the site

    研究結果表明，通過化學轉換將潤滑油中的堿性物質（電化學技術不可測量）轉換為銅離子（電化學可測量）來完成潤滑油總堿值的測定是可行的，並可以滿足測定時對于可行性、重復性和準確性的要求，還具有自動化程度高、操作簡單、測定時間短等優點，適合進行現場潤滑油測定。
  18. This paper also analyzes the general loading precision and influencing factor for three components balance. at the same time, we calibrate the three - components mirobalance with this equipment

    通過高精度復位工件臺和電視測量實現了微量天平的五分量體軸校；應用力的精密傳遞與轉換實現了微量載荷在水平方向的準確加載。
  19. On views separation and coordinate standardization, a coordinate axis projection - based approach and an image scanning - based approach are proposed for views separation, the former reduces the compare times of 2d primitive in drawings and raises the efficiency simultaneously, the latter can separate free nember views of engineering drawing accurately and it has no correlation with complexity of primitive, then, two sets of 2. 5d coordinate systems are introduced as intermediates to relate the 2d original drawing system to the 3d space projection coordinates anfd a formal technique is developed for constructing transformation matrices between coordinates

    3 .在工程圖視圖分離和坐標規格化方面，提出了改進的坐標軸投影分離演算法和基於圖像掃描的視圖分離演算法。前者減少了工程圖中二維實體的比較次數，提高了運行效率;後者可以準確分離具有任意視圖數目的工程圖，且演算法的穩定性與邊界復雜度無關。通過引入二維半中間坐標系推導出了從繪圖坐標繫到空間投影坐標系轉換的轉換運算元並給出了基於轉換運算元的坐標規格化演算法。
  20. In the aspect of multiple high accuracy a / d converter, a new type twice sampling a / d converter with digital feedback is talent showing itself

    在復合式高準確度a / d轉換器方面，一種新型的、採用數字反饋的兩次采樣a / d轉換器脫穎而出。
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