放大系數測定 的英文怎麼說

中文拼音 [fàngdàxìshǔcèdìng]
放大系數測定 英文
amplification measurement
  • 放 : releaseset freelet go
  • 系 : 系動詞（打結; 扣） tie; fasten; do up; button up
  • 數 : 數副詞（屢次） frequently; repeatedly
  • 測 : 動詞1. （測量） survey; fathom; measure 2. （測度; 推測） conjecture; infer
  • 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...
  • 放大 : amplify; magnify; boost; enlarge; blow up; gain; amplification; enhancement; multiplication; magn...
  • 系數 : [數學] coefficient; ratio; modulus; quotient; factor
  • 測定 : determine; determination; setting-out; admeasurement; assignment; assay; finding
  1. Products examination with traditional method exist the following questions : long measure cycle, heavy work load, low efficiency. in order to make the agricultural products processing machines can reach the performance and requirement that the country stipulates before producing in enormous quantities and putting on market, this article adopts data acquisition technology and plc control technology to research and design the performance examination system about agricultural products processing machines in foundation the require live and systematic technical indicator

    針對目前我國農產品加工設備品種繁多、規格復雜，產品鑒定採用傳統方法檢測周期長、工作量大、效率低的現狀，為了使農產品加工機械在大批量生產和投放市場之前達到國家規定的性能指標和要求，本文根據現場要求和系統技術指標，採用數據採集技術和plc控制技術研究和設計了農產品加工機械性能檢測系統。
  2. Advanced digital hardometers ( testing the hardness and safe load of bolts ) etc. testing equipments. advanced digital hardometers testing the hardness and safe load of bolts ) etc. testing equipments, the 1, 500 sq. m. vertical goods shelves can hold more than 5, 000 tons goods loading, each bin has fixed codes, and has perfect enterprise digital informationization management system and the support of software, which greatly improves the rationality and simplicity of goods loading and enhances the accuracy of goods and quick delivery and is one - up on others

    先進的數字化硬度測試儀（檢測螺栓的硬度及保證載荷）等檢驗設備，以及1500平方米的立體貨架可容納5000多噸貨物的存放，每個倉位都固定編碼，並有完善的企業數字信息化管理體系及軟體的支持，大大提高了貨物堆放的合理性和簡潔性，大大提高了貨物的準確性和發貨的快速性，使得更勝人一籌！
  3. 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。
  4. Do some necessary calculations and decide on the general scheme of compton back - scattering imaging scanner to the real wall inspection. include the selection of radioactive source, the calculation of compton back - scattering beam, the calculation of the basic condition of finding out the different materials and the determination of some important parameters as well. 3

    其主要內容包括入射源的選擇，散射粒子的理論計算，發現異物的最低條件計算以及系統的一些重要參數的確定，主要包括：放射源的選擇，散射角的確定，后準直器的形狀與尺寸，前準直器的尺寸，前準直孔的大小，檢測器的種類與型號，檢測器的效率等。
  5. Eddy - current sensor conversion circuit consist amplification circuit, band - pass filter circuit, demodulation circuit, differentiation phase and data sampling circuit. these circuits are used to convert the test signal of eddy - current sensor to discrete signal tend to process. the microprocessor system that formed of dsp chip is used to data fitting of test system, data displaying and data communicating with personal computer, etc. the interference questions of hardware design and the measure of eliminating interference signal in the subject are introduced in the last of this chapter

    硬體電路的設計主要分三大部分來實現：激勵源電路部分，由分頻電路和頻率合成電路組成，產生頻率穩定的激勵信號以確保檢測任務的正常進行；傳感器變換電路部分，由放大電路、濾波電路、檢波電路、鑒相電路和數據採集電路組成，主要將電渦流傳感器檢測線圈檢測到的信號變換成只含有被測信息的離散信號，易於后續電路處理；由dsp晶元構成的微處理系統，主要完成檢測系統的數據擬合、顯示及與主機通信等功能。
  6. In the present study, in order to investigate the effects of endogenous estrogen on the daergic terminals in amy and the daergic neurons in midbrain, fast cyclic voltammetry ( fcv ) was used to examine da release evoked by electrical stimulation from amy of female rats in different phases of estrus cycle, ovx rats and male rats. and tyrosine hydroxylase ( th ) immunohistochemi stry was employed to measure the numbers of daergic neurons of ventral tegmental area ( vta ) and substantia nigra ( snc ) in the rats

    因此，為進一步探討大鼠內源性雌激素水平的變化對amyda能神經系統及中腦da能神經元的影響，本工作應用快速周期伏安法（ fcv ）在體監測了處于動情周期各期雌鼠、 ovx鼠和雄鼠經電刺激誘發的amyda釋放，並應用酪氨酸羥化酶（ th ）免疫組化方法測定了以上各組大鼠腹側背蓋區（ vta ） 、黑質（ snc ）的th陽性神經元數目。
  7. The nucleotide ( nt ) sequence of the insert in phz1754 is 2299bps in size. computer assisted analysis of the sequence revealed an open reading frame ( orf ) with a g + c content of 70. 3 % that would encode a protein of 552 amino acids ( aa ). the nt seque nce comparision revealed that the orf in the sequenced region exhibits 85 % dna sequence homology with the cholesterol oxidase gene choa of streptomyces sp

    對phz1754進行外切核酸酶（ exonuclease ， exo ）順序缺失，獲得單向長度漸減重疊的系列突變體，核苷酸序列測定顯示出該ecor - sal片段的精確大小為2299bps ， frameplot程序分析揭示出該區域一個完整的開放閱讀框（ orf ）的存在，其大小為1656bps ， g + c含量為70 . 3 ，編碼552個氨基酸，利用blastsearch程序將orf的核苷酸序列及推導的氨基酸序列與因特網上基因及蛋白質數據庫進行綜合比較，發現無論在核苷酸水平還是在蛋白水平上，該orf均與膽固醇氧化酶表現出同源性，而且與鏈黴菌膽固醇氧化酶同源性最高，說明該orf編碼膽固醇氧化酶基因。
  8. We study the time evolution law of the atomic response in an open - type inversionless lasing system when the probe or driving field is off - resonance, and compare the law with that obtained when the probe and driving fields are resonant. we find that the detuning has considerable effects on the time evolution law : when the probe or driving fields is off - resonance, the dispersive responses for the probe and driving fields are no longer 0 and the two - photon coherence is no longer a pure real ; the variation of the probe detuning can make the time evolution law of the population distributions and the gain ( absorbtion ) of the driving field changing obviously ; with detuning increasing, the time evolution behavior of the gain ( absorbtion ), dispersion of the probe field and the two - photon coherence will gradually diviate from the evolution law of the standard damped oscillator ; with the driving detuning increasing, the oscillating time of the dispersion of the driving field becomes longer, the amplitude and the stationary value increase

    研究了探測場或驅動場失諧情況下開放的型無粒子數反轉激光系統中原子響應的時間演化規律，並與探測場和驅動場都共振時的演化規律進行了比較.我們發現失諧對時間演化規律有顯著的影響;當驅動場或探測場失諧時，原子對探測場和驅動場色散的響應不再為零，雙光子相干不再是純實量;探測場失諧的變化將使粒子布居和驅動場增益（吸收）的時間演化規律明顯改變;隨著失諧的增大，探測場增益（吸收） 、色散和雙光子相干隨時間的演化行為逐漸偏離標準阻尼振子的演化規律;驅動場色散驅動場失諧量的增加而振蕩時間變長，振幅和穩定值變大
  9. Researching on the technology if reverse order is to study strains if pits, structural systems if basement, environmental surwey and underpinnings. on account of emphasizing developing methods if checking strength if pick - ets, modemizing machenes of excavation and studying methods of underpinning is put forward and is a way if controlling the quality of pickets in sites, which leads an active effect ; synthetic application if rankintheory, spatial and time effect theory to excavation tl aanalyze the state of soil force and strain is brought forward and the time effect should be considered in the zone of clay, the formation and development of soil plasticity are analyzed and the most dangerous zone to decide how to excavate and where to begin is found ; analyzing the cause of picket settlement during reverse order and the differential settlement and discussing hlw to solute it. duringh the temporary survey and the environmental warship, bringing rorward the theory of environmental vibration and analyzing the state of soil force and probability of losing stabilization of soil under the effect of environmental vibration ; analyzing the state offeree in underground concrete wall by the method of mathematics and pointing out the place of the maximum force and deformation. based on systematic illustrating the reverse order, problems about application and development of reverse order and suggestions also are expressed

    鑒于國內外的研究把重點放在大力發展工程樁的實驗室承載力監測方法與設備、如何使土方開挖機械現代化及對周圍建築的臨測方法上，本文提出了現場利用聲波層析成像技術監測鋼砼樁內部質量的方法與程序，並得出了聲波層析成像技術是砼樁的動態質量檢測的有效手段，這對指導施有積極、現實意義；提出了綜合運用朗肯土壓力理論、基坑空間和時間效應影響理論來分析逆作法施工過程中基坑邊坡土體應力及應變的變化情況，指出粘土地區也應考慮時間效應，並且進一步分析了基坑邊坡土體的塑性區形成和發展，找出邊坡最不利的區域，以確定地下室土體的挖掘的方式和順序，指出憑主觀臆斷與經驗來施工是不可取的；在分析、經較逆作法與大開挖順作法的地下室結構體系受力情況及施工順序的不同，提出了節點處理技術；分析了逆作法施工期間樁的沉降變化原因及由此而產生的差異，並探討了解決的方法；本文還提出了環境振動對土體邊坡穩定產生影響的觀點，並分析了在環境振動影響下，土體的應力狀態及土休失穩破壞概率，並且還運用彈性力學知識和數學分析的方法定量地分析了地下混凝土墻受力狀態，指出了被監測墻體的最大應力、應變位置。
  10. As composite material are widely used in navigation and physical education equipments for high comparing intensity and module, even it has the approxi - mate zero expanding coefficient, as the same time, configuration of composite has been aroused attention by scientific researchers, the goal of them is to find an integrated structure with high efficiency and intelligent and many function all along. grid structure is the right structure with the high efficiency, the researchers overseas have been studying the structure for many years, which manifests it has many excellent nature ; existing research indicate it has higher stiffness and intensity. the form can be detected in health easily for its open shape

    復合材料具有高的比強度和比模量，同時又具有近於零的熱膨脹系數和良好的尺寸穩定性等優良性能，已經廣泛應用於航天航空事業和體育器材生產工業，與此同時，尋求一種高效的、低成本的、並將智能化和功能化集於一體的結構形式，一直是航空航天追求的目標，具有點陣結構的復合材料格柵結構正是這種高效的結構形式，表現出多項優良性能;國外對其進行了大規模的理論分析和一些數值模擬研究，已有的研究表明該結構具有良好的可設計與自動化生產性能而無材料之間匹配問題，開放式的結構形式為結構的健康檢測提供了便利，具有廣闊的應用前景。
  11. The input voltage of the piezoresistive transducer, gain, sampling frequency and negative delay can respectively be graded through programming. the stored system is specially designed to have two modes of trigger ( namely, external trigger through wire breakage and inner trigger through overpressure signal ), reading software and interface circuit that are of

    該測試系統可通過編程選擇傳感器供電電壓（兩檔） 、放大倍數（四種） 、采樣頻率（四種） 、負延遲（四種） ；同時具有斷線外觸發和超壓信號內觸發兩種觸發方式；讀數的軟體和介面電路都具有串併兼容特性；系統還具有狀態自檢和定時上電等功能。
  12. Secondly, basing on the theory of on - off gain of small signal, the raman gain coefficient for frequency shift between 0. 5 and 20 thz of standard sigle mode optical fiber is measured by pump - probe method through a super luminescent diode ( sld ) as a broadband small signal probe source. thirdly, numerical simulation analysis of gain characteristic of raman fiber amplifier for c band wdm signal light is made according to the raman gain coefficient of the fiber measured before through target and four rank runge - kutta method. at the invariability of wavelength and maximum power of each of two pumps, schematic of powers of two pumps for best flatness on c band wdm optical gain was found out, at the same time, the factors of resulting in gain saturation is analyzed, too

    本文首先應用經典的電磁理論對拉曼光纖放大器的工作機制進行了分析，然後，根據小信號理論推導出的開關增益求出了光纖拉曼增益系數的表達式，採用泵浦-探測波的方法，利用超輻射激光二極體（ superluminescentdiode簡稱sld ）作為探測光源，測量了所用標準單模光纖頻移為0 . 5 - 20thz的拉曼增益系數，之後根據所測得的光纖的拉曼增益系數譜對應用該類光纖構成的放大c波段wdm光信號的拉曼光纖放大器的增益特性採用打靶法和四階龍格- - -庫塔進行了數值計算，在給定了兩個泵浦光源的波長和最大功率后，找出了反向泵浦情況下使c波段wdm光源增益最平坦的兩個泵浦的各自最佳功率，同時也分析了導致信號光飽和的原因。
  13. The framework of the instument is analyzed firstly, and the paper focuses on the ecg pre - amplifier design, the data acquisition module based - on isa bus with multi channel inputs is realized, the system software that can fulfill the data acquisition, display and communication is also designed. the two patterns of the network communication is introduced in detail

    本文首先分析了智能網路型心電圖系統的結構，重點敘述了前置隔離型心電圖放大器的設計，研製了具有定時采樣功能的多通道數據採集系統，編制了集采樣、實時波形顯示、測量及網路通信等功能於一體的系統軟體。其中對心電圖儀網路通信部分的兩種模式作了詳細介紹。
  14. Plane diffraction grating, logarithmic amplifier and stable constant - current source are used in the system, thus the performance of the instrument is enhanced significantly and the cost is reduced

    系統採用了平面衍射光柵、專用陣列探測器、對數放大器以及高穩定恆流源，有效地提高了儀器的整體性能，同時降低了生化分析儀的成本。
  15. The proportional valve " natural work depends on the accurate setting of the ratio amplifier. so the work parameter must be set before the running of the valve

    由於比例放大器與比例閥是一一對應的關系，比例閥的正常工作很大程度上是依靠對比例放大器的準確設定，所以比例放大器中各調節指數都需要經過測試。
  16. Then detailed, analyze the agriculture public fiscal expenditure scale through the years, made a conclusion that the total amounts of agriculture fiscal expenditure increase continuously, however the scale descends continuously. comparing with other province, henan agriculture public finance expending is very low in scale. inquiry into agriculture public finance expending scale descent, and predict future 10 - year agriculture public finance expenditure total amount ; make use of the quantitative analysis method analysis henan province agriculture public finance expenditure benefit, include the agriculture public finance expenditure to the contribution of agriculture increase, the flexibility coefficient of the agriculture public fiscal expenditure, agriculture public fiscal expenditure construction performance etc, and analyze to make the factor that invite performance ' s develop ; finally, on the above analytic foundation, put forward public finance frame bottom agriculture public fiscal expenditure funds management mode

    本文首先在導言中闡述了國內外關于農業財政支出的相關理論，為后續的研究提供理論基礎和分析的方法論；然後詳細、具體地分析歷年來河南農業財政支出規模變動情況，得出農業財政支出總量雖不斷增長，支出規模卻在波動中不斷下降、與其它省份相比河南農業財政支出規模偏低的結論，探討了河南農業財政支出規模下降的原因，並預測未來十年河南農業財政支出總量；接著運用定量的分析方法分析河南農業財政支出效益情況，包括農業財政支出對農業增長的貢獻，農業財政支出的彈性系數變化，農業財政支出結構效益等，並分析制約效益發揮的因素? ?農業財政支出資金管理不善；最後，在上述分析的基礎上，提出公共財政框架下農業財政支出資金全過程管理模式，具體包括：農業財政支出投放體系、支農資金管理體系、支農項目管理體系、評估體系、決策體系以及監督體系等六大體系。
  17. Modern cylinder pressure acquisition system is deeply affected by the advanced computer hardware technology. a / d card with the capabilities of high resolution, high sampling rate, non discrepancy and setting sampling rate at will is combined with a lot of excellent measuring equipment such as crank shaft angle encoder, charge amplifier, industrial control computer, etc. we use four type 6117a46 spark plug cylinder pressure sensors made by kistler corp.,

    高速發展的計算機硬體技術深刻影響著現代氣缸壓力數據採集系統的發展，高解析度、高採集率、多通道、無相差和可以任意設定采樣頻率等特性的a / d板卡及一大批性能優越的相關測試儀器如轉角信號發生器、電荷放大器、工控計算機等。
  18. Based the research on the laser beam drift feedback control technique, analysing the beam drift and its frequency components, a laser beam directional stability method is studied in the thesis in detail, with its measurement and control circuit system that combines the laser beam intensity modulation and the beam drift feedback control technique. in this method, at first the laser beam intensity is modulated with the acoustooptic modulator, then the lock - in amplifier is applied to detect and demodulate the modulating signal, at last a feedback control signal is generated by the dsp control circuit at last, including : 1

    本文在原有的激光光束漂移量反饋控制準直技術的基礎上，對光束漂移量信號的數據和頻譜進行了分析，重點研究了一種集聲光調制光強與光束漂移量反饋控制準直技術於一體的激光光束方向穩定方法及其測控電路系統，該方法通過聲光調制實現光強調制，接著通過鎖相放大電路檢測並解調調制信號，然後通過dsp控制電路進一步對光束的漂移量進行反饋控制。
  19. According to the structure characteristics and motion rules of the new type nursing robot, the close loop control system of this new type nursing robot is designed and made with the virtual instrument developing software labwindows / cvi, mcu, piezoelectric ultrasonic motor and high precision optical incremental encoder, which can make the robot reset and rotate by the predefined tracks. at the same time, in order to make the nursing robots used more widely where intensity, precision and price are not high, another control system is designed with the step motor, virtual instrument developing software labwindows / cvi, multi - function daq card pci1711, linear power amplifier. in order to use the nursing robots in acupuncture therapy, a simple finger is designed

    在對其結構特點和運動規律分析的基礎上，本文以虛擬儀器編程語言labwindows / cvi為軟體開發工具，以單片機為控制核心，以超聲電機為驅動元件，以高精度光電編碼器作為速度和角位移檢測裝置，實現了機械臂的復位以及預定軌跡的閉環控制系統的開發;同時為適應一些強度不大、精度要求不高的應用場合，也為降低成本，簡化控制裝置，推動新型護理機械臂短期內應用推廣的需要，以目前應用較為廣泛、控制技術較為成熟的步進電機為驅動元件，用labwindows / cvi開發環境、 pci1711數據採集卡以及線性功率放大器開發了一套控制系統，實現了手臂的復位、勻速運動以及預定軌跡的控制系統;為推廣護理機器人在針灸理療中應用，設計了簡單的手指機構並利用labwindows / cvi開發環境，以及智能材料驅動器? ?層疊式壓電驅動器，進行了手指的抓取以及對驅動對象的轉動控制。
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