量數轉換 的英文怎麼說

中文拼音 [liángshǔzhuǎnhuàn]
量數轉換 英文
transmutation of measures
  • 量 : 量動1. （度量） measure 2. （估量） estimate; size up
  • 數 : 數副詞（屢次） frequently; repeatedly
  • 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
  • 轉換 : change; transform; convert; switch
  1. The three - order modulator has a 2 - 1 cascaded structure and 1 - bit quantizer at the end of each stage, the modulator is implemented with fully differential switched - capacitor circuits. and then, the discussion will begin by exploring the design of various circuit blocks in the modulator in more detail, i. e., ota, switched - capacitor integrator, quantizer, two - phase non - overlapping clock signal, etc., at the same time, these circuits will be simulated in spectre and hspice. at last, the whole cascaded modulator will do behavioral level simulation by matlab soft and simulink toolbox

    本論文中，首先介紹模數轉換器的各種參數的意義，以及一階sigma - delta調制器和高階sigma - delta調制器的原理;給出解決高階單環sigma - delta調制器不穩定性的方案，引入級聯結構調制器，特別針對級聯結構調制器中的失配和開關電容積分器的非理想特性進行詳細的討論;本設計的sigma - delta調制器採用2 - 1級聯結構和一位量化器，調制器採用全差分開關電容電路實現;同時對整個調制器的各個模塊進行了電路設計，包括跨導放大器、開關電容積分器、量化器、兩相非交疊時鐘等，並利用hspice和spectre模擬工具對這些電路進行模擬測試;最後，利用matlab軟體和simulink工具對整個級聯調制器進行行為級模擬。
  2. In light of market risk, there are sensitivity measurement method and volatility measurement method as well as the concepts about risk measurement, such as variance, duration, 3 - coefficient, 5 - coefficient and value at risk. and in light of credit risk, there are accounting - based ratio measurement method and volatility - based measurement method, as well as the related concepts, such as credit rating, z - score, transition matrix, expected default frequency

    其中，針對市場風險度量的方法包括靈敏度測量風險方法和波動性測量風險方法，與之相關的風險度量概念有方差、持續期、系數、類系數和在險價值；針對信用風險度量的方法包括基於財務比率的風險測量方法和基於波動性的風險測量方法，與之相關的風險度量概念有信用評級、 z分數、轉換矩陣、違約頻率。
  3. In front of the a / d converter in an analog conversion system is usually located a sample - and - hold circuit

    在模擬量轉換系統中在模/數轉換器的前端通常都會有一個采樣-保持電路。
  4. The main controller is in charge of managing, communicating and the measuring of grating - displacement and angle - displacement. the subcontrollcr is in charge of the measuring of inner diameter of psd, the analog - to - digital converting of the serial a / d and the data processing of dsp

    主控制器完成管理、通信及光柵位移、角位移測量控制功能；子控制器完成psd內徑尺寸檢測、串列a / d模數轉換及數字信號處理器（ dsp ）數據處理功能。
  5. Abstract : this paper is mainly about an analog saw - tooth signal generator used for linear histogram test of adcs

    摘要：主要內容是基於線性直方圖法測量模?數轉換器性能的片上模擬鋸齒波發生器的實現方法。
  6. Ti ' s tms320lf2407 is selected as core processor in ert, and analog signal is converted by tms320lf2407 ' s internal adc

    Ert模塊選用ti公司的dsp晶元tms320lf2407作核心處理器，模擬量經過調理電路後由tms320lf2407自帶的模數轉換器進行轉換和處理。
  7. 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。
  8. Switched range analogue multimeters are very cheap but are difficult for beginners to read accurately, especially on resistance scales

    量程轉換型指針萬用表是非常便宜的，但是對于新手使用者來說除了電阻檔以外，都是很難讀數的。
  9. Fashionable real - time databases at the present time, pi and phd, provide some general data process functions, such as unit conversion, filter, and evolution

    目前流行的實時數據庫系統，如osi公司的pi 、 honeywell公司的phd ，都提供常用數據處理過程，如量程轉換、濾波、開平方、超限處理等。
  10. General speaking, the large number of signal types to be digitalized has led to a diverse selection of data converters in term of architectures used, bits of resolution achieved and sampling rate employed

    一般而言，大量需要數字化的信號要求有各種不同結構、不同解析度、不同采樣率的a d數據轉換器來實現。在比較了各種模數轉換器的結構和優缺點之後，本項目決定採用流水線式（ pipelined ）的電壓型結構。
  11. In the time - domain, based on the principle of random sampling of dso. two way ( " time amplifing in dual slope integral " and " time - voltage convert " ) are implemented to measure the time between the system triger and writing clock. thus random sampling interpolate can be done to measure repeated signal in high frequency with the a / d convert and controller which frequency are lower

    在時域，根據數字示波器隨機取樣原理，用兩種方法（雙斜率積分時間放大測量方法和時間? ?電壓轉換測量方法）測量數字示波器系統觸發和采樣寫時鐘間時間間隔，用低速a / d轉換器及控制器進行模?數轉換和控制，以此進行隨機取樣內插，從而實現了對高頻率重復信號的測量。
  12. The precision amplifier and sixteen bit analog / digital ( a / d ) convertor ad7677 are used in designing data collection module which can convert range automatically

    選用高性能運算放大器及16位模數轉換器ad7677完成了帶有自動量程轉換的數據採集模塊的設計。
  13. Several key technology is particular expatiated in the paper such as eliminating the queer data by one rank difference method, the arithmetic of drawing a roundness with lattice liquid crystal, designing the iir digital filter, auto changing measure scale and software dependability design technique

    本文詳細闡述了幾個關鍵技術：一階差分法剔除奇異項，點陣液晶的作圓演算法、 iir數字濾波器的設計、自動量程轉換和系統的軟體可靠性設計等。
  14. The thesis finished a sample instrument used in measurement node. it is based on 8 - bit micro controller unit and has smart functions including auto calibration, auto scale change and auto balance of whetstone bridge. the data can be processed, stored, transferred and displayed in the sample device

    本文完成了測試系統中基於16位微處理器的網關的硬體架構和軟體實時多任務內核的設計；研製了基於8位微處理器的具有自校正、自動量程轉換及測試電橋的自動調平功能的測試節點樣機；實現了測試節點的數據處理、存儲、顯示和傳送；繪制並編寫了測試節點的硬體電路圖和軟體源程序。
  15. The amplitude discrimination circuit, the filter circuit and the amplifying circuit are designed to transform ac analog signal that the eddy current sensor output to dc analog signal, thus, the dc analog signal can be received by ad converter

    傳感器輸出的測量信號是中頻的交流模擬信號，在下位機系統設計了鑒幅、濾波、放大電路將測量信號轉化為模數轉換器可以接受的直流信號。
  16. In order to efficiently improve the stability of the apparatus, a dual - optical detection circuit was adopted. to eliminate the multiple scattering effects on transmittance measurements, the range of the transmittance was limited to 70 - 100 % by adjusting the width of the light flow cell and changing the intensity of the incident light through regulating the load voltage of the laser light source. moreover, the data acquisition software was programmed in microsoft visual bas

    通過調節激光光源負載電壓改變光強度及調摘要整檢測池的寬度，消除了多重散射對透光率的影響，將透光率的變化范圍控制在滿足beer1a毗ert定律的范圍內工將溫度、溶液密度和透光率信號經模數轉換，並用microsoftvisualbasic語言編寫的數據採集軟體，實現了實驗過程中各被測量的自動連續採集。
  17. Biomedical sensor is a key component to the modem medical instrument, which can convert physiological value to electrical signal

    摘要生物醫學傳感器是將醫學生理參數轉換成電學量的裝置，是構成現代醫學儀器設備必不可少的關鍵部件。
  18. Before the development of the system, the article describes the above - mentioned aspects, as the bases of the system development. the article emphasizes related auto - controlling technologies : open - 100p and close - 100p, and control mode of negative - feedback, the scatter and quantization of the simulate signal, the conception of a / d and d / a conversion and code / encode, the basic sampling principles of the simulate signal. the article introduces the operation method and process of the system by means of the load spectrum

    文章對相關的理論進行了陳述，以作為系統開發的理論依據，重點闡述了自動控制系統中包括開環閉環在內的幾大主要控制模式，以及有關的負反饋控制方式，模擬信號的離散與量化，模數轉換、數模轉換、編碼譯碼的概念，及模擬信號采樣的基本原理? ?采樣定理，並以載荷譜法為例，簡述了所研究的系統將要採取的工作方式及工作過程。
  19. This paper introduces the design of a data acquisition circuit of the loading - capacity limiter, and analyzes on the error of the pressure sensor, power source, instrument amplifier ad620 and a - d converter

    介紹了一種起重量限制器的數據采樣電路的設計，並對壓力傳感器、電源、儀表放大器ad620 、模數轉換器誤差進行了分析。
  20. But the cost of the testing system limit the further intelligent development, and " a / d convert " is the key part of this system. in order to solve this conflict problem this paper gives a method - by adding a few components to at89c2051, and using it ' s internal converter we have designed a a / d module with the function of microprocessor

    但是檢測系統的成本在一定程度上限制了傳感器向智能化方向發展，而檢測系統的關鍵部件就是「模數轉換裝置」 ，為了解決這一問題，本文利用具有極高性能價格比的at89c2051單片機本身帶有的內置比較器，通過外接少量元件，設計出了具有微處理器功能的a d模塊。
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