量化參數設置 的英文怎麼說

中文拼音 [liánghuàshēnshǔshèzhì]
量化參數設置 英文
midi quantize set-up
  • : 量動1. (度量) measure 2. (估量) estimate; size up
  • : 參構詞成分。
  • : 數副詞(屢次) frequently; repeatedly
  • : Ⅰ動詞1 (設立; 布置) set up; establish; found 2 (籌劃) work out : 設計陷害 plot a frame up; fr...
  • : 動詞1. (擱; 放) place; put; lay 2. (設立; 布置) set up; establish; arrange; fix up 3. (購置) buy; purchase
  • 量化 : quantization量化器 quantizer; digitizer; 量化失真 quantizing distortion; 量化條件 quantum conditi...
  • 設置 : 1. (設立) set up; put up 2. (設置) install; fit
  1. In view of bearing capacity of the elastoplastic theory analysis, the author made a comparison between the achieved bearing capacity limit load pi / 4 of round base ( space problem ) and the limit load pi / 4 of bar groundwork foundation design ( plane problem ) from soil mechanics at home and abroad as well as foundation criterion, and explained why the value of formula in present design criterion from soil mechanics is inclined to be conservative. in the light of the author ' s many years experience of vibration test on the spot and the research work of relevant projects, the author worked over the dynamic pile testing of the bearing capacity of foundation and batholith, and gathered the parameter of dynamic analysis and testing. the author also talked over the difficult point of pile foundation design criteria in present batholith engineering world, i. e. the confirmation of batholith bearing capacity of pile end, from the following aspects : a ) confirmation of single axis counter - pressure strength of rock in house ; b ) f. e. m calculation of elastoplastic model ; c ) calculation of soil mechanics ; d ) deep well load test

    然後,對巖土工程領域至今尚未解決,甚至不為人注意的考慮地基變形的地基承載力問題進行了實用的探討,提出了考慮地基變形的地基承載力上程計算方法;對基於彈塑性理論分析的地基承載力國內尚未見報道的空間問題得到了圓形基礎(空間問題)的承載力界限荷載p _ ( 1 / 4 ) ,並與國內外土力學專著及地基基礎計規范中的條形基礎(平面問題)的界限荷載p _ ( 1 / 4 ) ,進行了對比,從而定上解釋了目前計規范引用土力學承載力公式值偏於保守的這一情況;根據本文作者多年從事現場地基工程振動試驗及相關課題的研究工作,本文以截頭錐模型模擬地基,對地基(巖基)承載力的動測法進行了研究,為各類地基(包括巖基) ,匯總了動力分析和檢測川的:針對日前巖土工程界應用樁基計規范中的難點? ?樁端巖基承載力的確定問題,從巖石室內單軸抗壓強度確定、基於彈塑性模型的有限單元法計算、土力學計算及深斤載荷試驗四方面進行了深入討論;本文作者根據多年現場載荷試驗的工程實踐,對深井荷試驗裝的核心部分? ?反力裝計了側壁支撐反力加載系統,該加載系統具有實用、簡便、穩定及安個等優點。
  2. Based on the demand of power department, a full distributed multifuncitional monitoring device is studied. this instrument not only can measure the data of hydroelectric plant, but also integrate the funcition of control the dynamotor, by cooperate with the program of epigynous system, it can realization the auto generate electricity on the hydroelectric plant and ordinal startup - stop of the dynamotor. 2 furthermore, performance of integrated dft arithmetic enhances the acturacy and reliability of measure. by communication several devices can run online to be controlled dispersedly and managed centrally

    本文分析了國內外水電站自動控制裝的研究和發展狀況,尤其是國內小型水電站的自動現狀,針對現有電力部門的需求,計並實現了一種單元式的微機自動監控裝,該裝不僅實現了對水電站內各種模擬字信號的實時監測功能,還對水輪發電機組進行了調控,通過與上位機處理程序的配合,可以實現水電站的自動發電控制、機組順序啟停;在測發電機組機端電壓和電流的時候,採用32點離散傅立葉演算法( dft ) ,增加了測的準確性和可靠性;通過通訊可以實現裝的聯網運行,做到「分散控制、集中管理」 。
  3. By making some assumptions, collision frequency were presented. then the the flocculation kinetics model was established through population balance equation. comparison of experimental data and modeling results indicate that there are the same trend between the two. so the model can predict floes number and size during flocculation of yellow river ' s loess particles without using empirical parameters. the tem and sem were used to obsever floes in the study of floe structure. the flocculation was divided as flocculi, floc and floe aggregate. the floes structure model was established by assumption that particles position in floe accords with tetrahedron. the fractal dimension of model and experimental floes was found to be coincidentso the model can reflect the structure of flocs formed in flocculation of yellow river ' s loess particles by macromolecule flocculant at a certain extent

    最後,本文還對絮凝動力學和絮體結構進行了研究,在前人研究的基礎上,針對高分子絮凝黃河泥沙,對絮凝過程作了一些符合試驗條件的假,建立了顆粒碰撞頻率表達式,應用了顆粒平衡方程,從而建立了絮凝過程的動力學生長模型,模型計算結果與試驗據對比表明,二者趨勢一致,在沒有使用經驗的情況下基本上能夠描述黃河泥沙絮凝過程中絮體和尺寸分佈的變過程;對絮體結構的研究中,應用掃描電子顯微鏡和透射電子顯微鏡對絮體進行了觀察,將絮體分為絮粒、絮團和絮網三個不同的生長階段,通過假顆粒結合位符西安建築科技大學博士學位論文合正四面體,建立了絮體結構模型,計算得到的模型絮體分形維基本與試驗中的實際絮體相符,在一定程度上能夠反映高分子絮凝黃河泥沙生成的絮體結構。
  4. A lot of experiments have been done in the process of exploiture soft packaging li - ion battery about how to choice the rational arts and crafts. the content include : how to deal with the collector, add how much pvdf in the material, how long the material need to stirring and the right viscidity, how much condubtivity agent the electrode need, what theckness is best, choice different collectors, the degree of dryness of the electrode, theckness of pressed model, how much electrolyte will be added, placement how long after added the electrolyte, system of formation how to influnce the battery, in formation the battery need or not need preesure from outside, how to vacuumize and the optimize matching positive pole and negative pole. with these practice make sure the parameter of the positive pole should less than 90 m ; according to different vacuumize order the conduc - tivity agent in anode will be 5mass % and 9mass %, respectively, and in cathode the data is 2mass % ; every 100mah added to 0. 4 ml electrolyte ; before formation the battery should be placement 8 hours and the system of formation must be less than 0. 01c before the voltage reach to 3. 0v ; should press in outside when battery in formation ; to these batteries which capacity more than 350mah the vacuum time not excess 15s ; the optimize matching positive pole and negative pole between 2. 10 : 1 and 2. 15 : 1. finally make out the battery which cycling performance and security are all very well

    液態軟包裝鋰離子電池的研究主要是對關鍵工藝進行了優計,具體包括:集流體的處理、 pvdf的加入、漿料攪拌時間和粘度、導電劑的加入、電極膜的厚度、不同集流體的選擇、電極膜的乾燥程度、壓型的厚度、電解液的加入、注入電解液后靜時間的長短、成制度的影響、成時電池所具有的壓力影響、抽真空的處理、正負極活性物質的匹配。最後確定出液態軟包裝鋰離子電池最佳工藝:正極膜的厚度小於90 m ;根據成時不同抽真空順序,確定正極膜中的導電劑的加入分別為5mass %和9mass % ;負極膜中導電劑的加入為2mass % ;電解液的加入為每100mah添加0 . 4ml ;成前電池的靜時間應當大於8h ;電池在3 . 0v之前採用小於0 . 01c的成制度;在成過程中應當施加一定的外部壓力;對於350mah的電池抽真空的延時不應大於15s ;而正負極活性物質的質比應當在2 . 1 : 1 2 . 15 : 1之間。
  5. A new method for measuring the vibration of shadow mask without touch by detecting the light density with reflection type optical fiber sensor is presented. the measurement system based on the new method is designed to make the vibration measurement easier working, faster calculating, and get more precise results. it is an important measurement and analysis tool to improve the performance of shadow mask and display quality of cpt

    本文提出了基於單光纖光強度反射法的非接觸式微振動測系統的原理,並計製造了該測試系統,探索出了簡單方便可靠的測方法,能夠準確客觀地反映蔭罩振動的各項(各振動模的振動頻率、振幅、衰減時間) ,實現了測試裝的簡便和測試過程的自動,為cpt張緊式蔭罩系統的性能改進與顯示質的提高提供了有效的測試分析手段。
  6. According to the guidline, two nd : yag lasers have been designed and set up, one is end - pumped by lower output power ld using a selfoc micro lens, and the other is end - pumped by high output power ld using a pair of lenses are designed, and the characteristics such as output power and power stabilization of both solid - state lasers are investigated. thirdly, when an empty liquid crystal cell is inserted in the cavity of the nd : yag laser pumped by high power ld, the laser can operates in single axial mode. finally, according to the relationship between the laser output power and the longnitudinal a ld - end - pumped nd : yag laser sensor for displacement measurement has been investigated theoretically and demonstrated experimently, the results indicate that when the mean radius of pumping inside the laser cavity is far less than that of the oscilating laser mode, the exponential of the output power is a gauss function of the longitudinal positon of focused spot of ld pumping beam, both the measurement range and the sensitivity are dependent on the incident pumping power, as the incident pumping power is increased, the measurement range is enlarged and the sensitivity is improve d

    本文首先介紹了ld泵浦nd : yag激光器的發展狀況、主要特性及其應用,從四能級速率方程出發,推導了ld泵浦nd : yag激光器的閾值、輸出功率和斜效率的表達式,並簡述了激光器的工作原理、結構型式和倍頻方法;其次,以空間相關的速率方程為基礎,提出了ld端面泵浦nd : yag激光器的計方法,給出了一定泵浦耦合方式下,振蕩光模尺寸、最佳輸出耦合率、泵浦光模尺寸、泵浦光焦斑位的選取依據,以此為依據,計了自聚焦透鏡耦合小功率ld泵浦nd : yag激光器和透鏡組耦合高功率ld泵浦nd : yag激光器,對激光器的輸出功率和功率穩定性等特性進行了實驗研究;再次,在帶尾纖輸出的高功率ld泵浦nd : yag激光腔內插入一隻空液晶盒,觀察到了激光器以單縱模運轉;最後,根據泵浦光焦斑端面位對激光輸出功率的影響規律,提出了ld端面泵浦nd : yag激光位移傳感新方法,並進行了理論和實驗研究,研究結果表明:當激光晶體內泵浦光平均光斑半徑遠小於振西安理工大學碩士學位論文蕩光束腰半徑時,激光輸出功率的自然指與泵浦光焦斑的縱向位成高斯變規律,測范圍和靈敏度依賴于泵浦功率,隨著泵浦功率的增加,測范圍擴大,靈敏度提高,當端面泵浦功率為7 . 24w (最大輸出功率為1 . 926w )時,激光位移傳感器的測范圍和靈敏度分別是13 . 045mm和0 . 148mw / pm 。
  7. Comparing and analyzing the synchronous control strategy, which brings up the new method to control the double un - symmetry jars proceed synchronously with the combination of proportional valve and servo valve, which forms closed loop control ; basing on the above methods, models are made to get mathematics models of position control system and to analyze system model theoretically by using pid controller, we can realize regulating parameters, minimizing synchronous errors and enhancing the dynamic performances ; the simulink tool box in matlab software is used to imitate the system according to the model, which not only makes the result visual and easy to adjust the parameters in interactive way but also lets us understand the effects of different parameters and optimizes the dynamic properties. the theory of plc control in dshp is discussed after advanced understanding of the system movements. hardware design and general regulation are given on the base of siemens company products s7 - 200 plc

    本文根據大的國內外文獻,對研配液壓機的工作原理及計結構進行了簡介;對位同步的控制方法進行了比較分析,提出比例閥和伺服閥復合控制的閉環結構來對非對稱雙缸進行同步控制電液比例同步控制方案;在此基礎上著重對比例閥控非對稱缸建模,最後得到位控制系統的總體學模型,從理論上對同步系統動態特性進行了分析,並用pid控制器進行整定,減小雙缸同步誤差、提高系統的動態響應性能;其中控制性能的分析藉助于matlab軟體中的simulink工具箱,由已建立的學模型形成模擬模型,得到可視的模擬結果,從而利於交互方式下調整,了解不同的對系統的影響,優同步系統的動態性能;在深入了解系統的動作特性后,對plc控制研配液壓機的原理進行了探討,針對siemens公司s7 ? 200型plc給出了硬體計的總體規劃,編制出研配液壓機動作控製程序,在編程中著重研究位移傳感器與plc的通訊、雙缸同步運行的pid控制在plc上的實現及bcd碼撥盤輸入程序的植入問題。
  8. This software system of chip simulation ' s main function is simulate the main logic circue chips, 8088cpu, memory, registers, data _ bus, address _ bus, control _ bus and other chips. this function is based on the object - oriented technology, construct the chip object by the chip classes that we defined. because this system need to simulate the detail function of computer hardware, so this system simulate the 8088cpu ' s order system, support the basic compile languages. one of the feture of this system is the simulation of a static memory, the room of the memory can be configured by testers from 1k to 64k

    由於本系統在模擬過程中需要完全模擬計算機硬體的工作原理,因此本系統還模擬了8088cpu的基本指令系統,支持基本的匯編指令,在實驗過程中可以由實驗者輸入相應的匯編指令以執行操作,並查看各晶元器件的引腳情況。本系統模擬的一個特點是動態模擬了存儲器的大小,存儲器容可以由實驗者根據需要自己,范圍從1k到64k 。
  9. Based on the analysis of designed cad graphics and the given parameters, computer can convert the cad graphics to a acdbpolyline which can simulate the routine of the conveyor chain. then by using the method of point - by - point strain calculation, computer could figure out each point ’ s strain of the chains under different load states, and get the results such as strain ’ s maximal and the minimal values and their positions, weight of the strain equipment and power of the drive electric - machinery that the conveyor need

    通過對計的cad圖形和給定的分析,將輸送鏈運行軌跡轉為一條可模擬輸送鏈軌跡的多義線,然後用逐點張力計演算法動態地計算出各種加載狀態下輸送鏈上各點的受力,得出最大、最小受力點的力的大小和位,拉緊裝的重,驅動電機所需的功率等結果。
  10. There is difference frequency measurement requirement for every part of pid regulating, difference between dynamic quality and static quality in response time and accuracy. according to these, it use the interrupt functions and high - speed counter of the simens s7 - 200 plc cpu226 basic unit and some peripheral circuit to measure frequency ; in software designed, the procedure frame of hydraulic - turbine governor and disperse process of parallel pid are analyzed, an improved pid algorithm is adopted to realize a pid regulation mode with variable structure and parameters ; the mechanical liquid - pressure system of the hydraulic - turbine governor is with electric - hydraulic converter unit of step motor. according to the drive character of five phase of response step motor, a variable frequency regulated voltage driver unit is designed in order to realize interface between plc and driver of step motor

    本文利用s7 - 200plc自身的特點計了頻率測單元,根據pid調節各個環節的特點,以及調速器動態特性、靜態特性對頻率測的實時性和精度要求的不同,利用s7 - 200plc基本單元中內的高速計器以及相應的外圍放大整形、分頻電路,實現了水輪發電機組頻率的測;在軟體上,對微機調速器的整個程序框架、並聯pid的離散過程進行了分析,選用改進的pid演算法實現了變、變結構的pid調節模式;調速器的機械液壓隨動系統具有步進電機電液轉換元件,採用五相反應式步進電機,根據其驅動特性計了變頻調壓驅動器,實現plc與步進電機驅動器之間字介面。
  11. Electrical parameter includes voltage, current, power, frequency, power factor, and so on. the adjustment system of electrical network needs many panel instruments that can show the electrical parameter, such as voltage, current, power, cycle etc. tjsually these instrument is not accurate, wastes manpower resource, and the management of the data is inconvenient and easy to mistake. recently the development of micro - electronics technology and the advent of slsi. especially the advent of singlechip, lead to a new revolution in the field of instrument

    電工一般包括電壓、電流、功率、頻率、功率因等。在電網調度自動備中需要配多隻測顯示上述電工的鑲嵌式面板表,如電壓表、電流表、功率表等等,其一般均為指針式面板表,精度低,可視距離近,據需要人工抄錄,浪費人力資源,據管理不便,容易出錯。
  12. Based on these models, a main - road traffic flow model with two speeds on one dimension is designed. this model simulate the situation of one road in the city, traffic lights placed on the crossing, using the computer simulation, firstly, in the case of synchronized traffic lights, we investigated the velocity and flow of the model when the initial density, the turning probabilities, the number of the traffic lights, the green to signal ratio and the period of the signal are changed, then we have advanced some meliorate measure to traffic flow ; secondly, in the case of the traffic lights " signal update delay in turn, we found the optimal matching between the period of the signal and the delay time of the traffic lights so as to the perfect velocity and the flow of the model are attained

    在此基礎上,建立了一維二速主幹道模型,該模型模擬了城市交通中一條主幹道的交通情況,在交叉口處紅綠燈,通過計算機模擬,首先,在交通燈信號同步更新的條件下,研究模型在改變車輛的初始密度、轉向概率、交通燈個、紅綠燈信號的綠信比、紅綠燈信號周期等各種情況下主幹道的速度、流的變,根據模擬結果提出一些改善交通的有效措施;其次,在交通燈信號依次延遲更新的條件下,研究模型在道路長、紅綠燈綠信比、交通燈個、車輛的初始密度給定的情況下找到紅綠燈信號周期和延遲時間的最佳匹配使得主幹道的速度、流達到最理想的值。
  13. This text completely and systematically studies the status and the development of the pyrolysis and the fluidization of biomass, which distill the bio - oil in the domestic and international area, as well as the existing problems. this thesis primarily include following aspects : ( l ), by experimenting and measuring the energy ( heat value ) and the content of c, h, n chemical element of right 20 kinds of common biomass, on the base of the experimental result, and respectively established the biomass energy predict experiment formula with the element of h and c is from change, and passed the ro. os examination, which provides the basis and convenience for flash pyrolysis fluidization device energy to convert the rate to compute with biomass energy utilization calculation ; ( 2 ), proceeded the tg and dtg experimentation equal velocity ( 10 ? / min, 20 ? / min, 40 ? / min, 60 ? / min ) heating and constant temperature heating by studying on eight kinds of biomass samples, according to the experimental data and arrhenius formula, we established the dynamics model of pyrolysis of, then, using the goast - redfern and p function, we also solved the dynamics parameters and analyze out every kind of biomass ' s frequency factor and parameters of activation energy, and established the every kind of dynamics model of pyrolysis of biomass, all of these provide the theories and basis to make sure the reactor ' s flash pyrolysis work temperature scope design and the describing of pyrolysis reactor dynamics ; ( 3 ), in order to study and ascertain the process of heat completely getting to pyrolysis time of varied size biomass particles, we observed and measured the ratio of length and diameter ( l / d ) with the varied biomass through electron microscope, we concluded the l / d ratios usually is from 5. 0 to 6. 0, the average is 5. 3 ; ( 4 ), we studied the process of biomass transiting and the theory of complete pyrolysis time with the theory of complicated heat field, we got the time ( t ) of the varied size biomass particles arriving to complete pyrolysis, and we knew that the complete pyrolysis time and the time which get to the biggest production ratio are identical, all of these studies provide the theory base for design and forecasting the flash pyrolysis reactor solid state resort time ; ( 5 ), according to the above experiment result, synthesize to make use of the engineering the mechanics, engineering the material, machine the design to learn the principle, deduce, establish the theory of rotation cone flash pyrolysis reactor material resort time ( t ) and reasonable rotation velocity ( or frequency ) relation theory ; and ( 6 ), we gave the reactor ' s smallest cone angle certain, reactor cone wall strength design theory, the reactor production ability theory, the power design method and the critical rotation velocity theory

    本文較全面、系統地綜述了國內外生物質熱解液制取生物燃油技術研究發展現狀及存在的問題,主要研究內容有: ( 1 )實驗、測定了20種常見生物質的能(發熱)和c 、 h 、 n元素含,根據實驗結果分別建立了以h和c為自變的生物質能預測經驗公式,並通過r _ ( 0 . 05 )檢驗;為閃速熱解液率計算和生物質能利用率計算提供了依據和方便; ( 2 )選擇了8種生物質試樣作了等加熱速率( 10 min 、 20 min 、 40 min 、 60 min )和恆溫加熱的tg和dtg實驗,根據實驗據和阿倫尼烏斯公式建立了生物質熱解反應動力學微分方程,並採用goast - redfem積分法和p函對其動力學進行了求解,解析出各種生物質的頻率因子和活,進而建立了各種生物質的熱解動力學模型,為科學確定反應器的閃速熱解工作溫度范圍及熱解反應動力學描述,提供了理論和依據; ( 3 )為研究和確定不同尺度的生物質顆粒中心達到全熱解的時間,在體視顯微鏡下對不同粒度的生物質顆粒的長徑比進行了實驗觀察和測定,得出生物質的長徑比( l d )一般在5 . 0 6 . 0之間,平均為5 . 3的結果; ( 4 )採用復雜溫度場傳熱學理論對生物質傳熱過程及充分熱解時間理論進行了研究,解析推導出了不同尺寸生物質顆粒中心溫度達到充分熱解溫度的時間( t ) ,得出了理論推導的充分熱解時間與最大產油率的熱解時間相一致的結果,為閃速熱解反應器固相滯留時間計和預測提供了理論依據; ( 5 )根據上述實驗結果,綜合運用工程力學、工程材料、機械計學原理,推導、建立了轉錐式閃速熱解反應器物料滯留時間( )與轉速(或頻率)合理匹配理論; ( 6 )提出了轉錐式閃速熱解反應器的最小錐角計、錐壁強度計、生產能力計理論和功率計算方法及臨界轉速理論等。
  14. So in china research with investigate to adapt to the state of the nation, using above and all kinds of abandon biomass with the large quantity ' s resources of low quality and low price food economily, fleetnessly and high - efficiently to convert for that can act for on a certain degree the petroleum conversion of bio - fuel - oil theories with method, have important of economic meaning is with the social meaning, this text author is on check the foundation of the related data of domestic and international large quantity, proceeds living creature quality pyrolysis experiment that solve, established the pyrolysis solution to respond the dyn amics model, combine right turn the main design theories that equip of solution of pyrolysis of quality of rotating cone type living creature that parameter to proceeds the research, provided the theories the basis with experiment the data in the follow - up research

    因此,在我國,研究和探索適應國情,將上述各種廢棄生物質和大的低質低價糧食資源,經濟、快速、高效能地轉成可在一定程度上替代石油的生物燃油的轉理論和方法,具有重大的經濟意義和社會意義。本文作者在查閱國內外大相關資料的基礎上,進行了生物質熱解的實驗,建立了熱解反應動力學模型,並對轉錐式生物質熱解裝的主要計理論進行了研究,為后續研究提供了理論依據和實驗據。
  15. Finally, we propose a main road model in city traffic according to the improved ns model with open boundary conditions, and study some characters about this model with different parameters. our purpose is to find out the actor which influent the main road ' s average speed and current, and also the law of city traffic. then we can give some advise for managing and controlling the main road trffic. organization and self - organization cooperation in this model is discussed. the effect of roads ' length, the number of intercections and their positions is self - organization, and the effect of the deceleration probability, the injection ( extinction ) rate, the cycle times of traffic lights is organization. we analyse the effect of the parameters above separately

    最後,在開放邊界條件下改進ns模型的基礎上,建立二維城市主幹道模型,研究不同條件下模型的性質,找出影響主幹道流、速度的因素及城市交通流變的規律,給出適當的匹配,為主幹道管理和控制提供依據。主幹道模型由一條東西向的主幹道和若干條南北向的支道組成,在支道和主幹道的交叉路口上紅綠燈,交叉口上的車輛可以轉向行駛。
  16. The controllers have considered all sorts of imperceptible factors affecting the servo performances in a lpmsm servo system, which include the parametric uncertainties brought by the changes of the mobile mass, frictional coefficient, the thrust fluctuations aroused by the varieties of the magnetic density distributions and the time harmonic. the h state feedback controller restrains disturbances and uncertainties to keep the robust and stable performance. the ip controller, which has the ability of rapid response, is applied to satisfy the rapid performance

    在分析雙環控制問題時,針對直線永磁同步電動機,仔細考慮了能使伺服系統性能變壞的各種細微因素,如:永磁同步直線電機動子質、摩擦系等造成的模型不確定性,電機運行期間存在磁密分佈變、時間諧波等產生的推力擾動等,採用了ip速度控制器和h _狀態反饋控制器相結合構成直線伺服的內環控制器,並輔助計了外環的pi位控制器。
  17. According to the basic theory of iir filters, a scheme of hardware implementation is worked out combining with the fact that coefficients of numerator and denominator of transfer function are fixed and the structural feature of selected hdpld. from the clew of implementing a stratified , modularized and parameterized design , the thesis describes the hardware implementation of the iir filter with vhdl and schematic diagram design method. two examples that are iir notch filter and iir low - pass filter are given , the stability of filters and the effects of quantification of coefficient are also analyzed

    以iir字濾波器的基本理論為依據,結合濾波器的傳遞函分子、分母系固定這一事實和選用的高密度可編程邏輯器件的特點,確定了iir字濾波器的硬體實現方案;按照層次、模塊計思路,採用vhdl硬體描述語言和原理圖兩種計技術進行了iir濾波器的硬體計;本文給出了iir陷波濾波器和低通濾波器兩個計實例,對計的濾波器都進行了穩定性分析和系影響分析;最終將完成的iir濾波器的硬體計配到晶元中,並在製作的實驗電路中進行了實際濾波效果測試。
  18. ( 3 ) an ert experiment system is developed base on the new resistance measuring circuit. this system is entirely designed as a field - bus instrument. instructions are sent from the pc to execute some work such as parameter configuration, fault - checking and data - acquiring

    ( 2 )基於該新型高速微弱電阻變電路研製了一套完整的電阻層析成像系統,該儀表完全基於工業現場儀表模式計,上位機通過rs232 rs422總線向下位機發送指令完成故障檢測、據採集等各種功能。
  19. ( 2 ) this paper test the migration parameters of the element sr systematically by theory and the experiment set designed by self, it provide the on quantification parameters that the migration model of the element sr in the fracture water in hae field

    ( 2 )採用理論分析和自己計的室內實驗裝,較系統地研究了核素鋸在水中的遷移。為核素鋸在地下水中的溶質遷移模型建立以及遷移模型的預測提供了所需的定
  20. The system uses a new replaceable chip and has realized the chip separated from the flow injection pool. and according to the new chip, the system is designed to employ a new flow injection pool which has a compact structure. in addition, the new system strengthens the function of the control software and puts automatic data - treating into practice

    改進后的系統採用激勵光源正面照射的方式,增強了光電流的響應;同時系統採用新型的可替換式laps晶元計,實現了多個laps晶元共用一個流通測池;系統還針對新的晶元計了流通測池,該測池結構緊湊合理,真正實現流通檢測;另外系統還增強了主機控製程序的功能,實現了實驗據自動處理,並優了系統
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