進位脈動 的英文怎麼說
中文拼音 [jìnwèimàidòng]
進位脈動
英文
carry ripple-
This paper describes an automatic contest robot from the cctv holding “ the first robot tv contest all over the academician ”, describes the function and the realization of the robot in greater detail. the robot adopts two stepper motors in the stepped driving control system and putting - ball control system like fishing, with the control of at89c52 single - chip microcomputer, it can synchronously produce driving pulse for two stepper motors and control the moving of the robot along the predetermined line
該競賽機器人採用步進電機作為行走驅動,釣魚桿式的放球控制系統,在at89c52單片機的控制下,分別為左、右步進電機產生脈沖,控制機器人按照預設的固定路線行走,待機器人到達預定的目標位置后,同時控制多個放球機構,從而能分別將賽球準確地放入到比賽圓筒中。Some simulations with deltae has also been made to predict the performance of the system. at the end of this section, proposals and schemes are also given for the further experiments. 4 ) thermoacoustically driven puke tube refrigerator ( tadptr ) with the successful operation of the standing wave thermoacoustic prime mover, we transferred part of our efforts to the thermoacoustically driven pulse tube refrigeration, which is actually the original aim for our study on the thermoacoustic prime mover
熱聲驅動脈管製冷機在成功研製熱聲驅動器的基礎上,對其與脈管製冷機(一種在低溫端沒有運動部件的新型的低浙江大學博士學位論文金滔:熱聲驅動器及其驅動的脈管製冷研究2001年5月溫製冷機)的聯接進行了匹配分析,並搭建了熱聲驅動脈管製冷機的實驗臺,進行了系統的實驗研究。This article reviews the clinical manifestations, mutation feature, gene location and phenotype of different ischemic cerebrovascular disease caused by monogenic disorders, including coagulation disorders, erythrocytic disorders, inherited small vessel disease, metabolic disorders, connective tissue diseases, vasculopathies and disorders of unknown etiology
本文主要闡述了單基因遺傳障礙引起的缺血性腦血管病,包括凝血障礙、血細胞病、遺傳性小血管病、代謝障礙、結締組織病、大動脈病及不明原因引起缺血性腦血管病的臨床特徵、突變特點、基因定位及表型等遺傳學研究進展。The results show that : the glomerulus of the mouse consists of a lobular arteriole within the glomerulus, capillary meshwork lobules and communication branches between the lobules and the efferent arteriolar roots ; there are some sublobular microcirulatary units in lobules ; the glomerulus of chrysolophus pictus is only a tortuous vascular ball ; there are no branches anastomosed between the vascular ; the afferent arteriole is a branch, efferent arteriole is one either, but some efferent arteriole has branches
結果表明:小白鼠腎小球由小球內小葉微動脈、毛細血管網小葉及小葉間交通支和小葉輸出血管構成,小葉可分出亞單位;紅腹錦雞腎小球為一簇迂迴盤曲的血管團,血管間未見有復雜的分支和吻合;小白鼠和紅腹錦雞進球小動脈和出球小動脈均為一支,但有的出球小動脈有分支。James devlin, olga iakoubova and their celera team are comparing dna samples obtained from 500 of our patients with thoracic aneurysms and from 500 healthy individuals, in this case the patients ' spouses
德夫林、伊可波法以及他們在賽勒拉的團隊,將我們提供的500位胸主動脈瘤患者的dna樣本,與500位健康人士(取自這些病人的配偶)的樣本進行比對。With better detection and, ultimately, improved treatment in mind, we have begun to collaborate with scientists at celera diagnostics in alameda, calif., to search for genetic markers called snps ? single nucleotide polymorphisms ? that correlate with aortic disease
為了尋求更有效的偵測之道和更進步的治療方法,我們與位於加州阿拉米達市的賽勒拉檢驗公司合作,尋找與主動脈疾病相關的基因標志。Backed up by the soplat theory based on particle kinematics, the second chapter of this paper presents with analysis and simulation of several single observer passive measurement models, which uses such relative movement parameters as bearings changing rates and centrifugal acceleration information on the basis of bearings measurements. in the third chapter, the observability of location respectively using bearings and its changing rates information and centrifugal acceleration information is analyzed, and its observable condition is got. the fourth chapter puts forward the modified covariance extended kalman filtering ( mvekf ) against the defect of traditional extended kalman filtering ( ekf ), whose performance is simultaneously compared in the chapter with the performance of ususal tracking algorithm such as ekf, mgekf, iekf by computer simulation
在近年來提出的基於質點運動學原理的單站無源定位理論基礎上,本文第二章提出了幾種在角度測量的基礎上增加角度變化率及相對運動的離心加速度等運動學參數的單站無源測量模型,並對它們進行了分析和模擬;第三章分別對利用角度及其變化率信息定位和利用離心加速度信息定位的可觀測性進行分析並得到了相應的可觀測條件;第四章針對傳統擴展卡爾曼( ekf )方法的缺點,提出了一種修正協方差的擴展卡爾曼濾波( mvefk )方法,並將其和ekf 、 mgekf 、 iekf等常用的單站無源定位濾波方法進行了性能模擬比較;第五章通過引入雷達機動目標跟蹤方法和模型,提出了利用角度及其變化率對機動輻射源跟蹤的多級噪聲自適應方法和imm方法;第六章主要對角度變化率和離心加速度參數的獲取技術進行了研究,提出了幾種高精度測量脈沖序列多普勒頻率變化率的方法。In this work, a new dual triangulate bluff body vortex flowmeter was developed, the flux lower limit value of which lower by 50 % that of the old single bluff body vortex flowmeter. the linear correlation of the correlation between the velocity pressures of fluid disturbs wave and that of vortex precession in vortex precession flowmeter was brought to light, and a spectrum phase discrimination method based on fft to remove the effect of fluid pulsating interference on vortex precession flowmeter was advanced
研製出比傳統單鈍體渦街流量計流量下限降低約50的新型雙鈍體渦街流量計;揭示出脈動流中旋進旋渦流量計流體振動特性,並在此基礎上提出基於fft相位判別的數字信號處理方法來消除流場脈動對旋進旋渦流量計的干擾的方法。An algorithm for the moving emitter passive location and tracking based on toa and doa measurements by a single fixed station is given
提出了一種測量目標輻射源脈沖到達時間和到達方向實現固定單站對運動輻射源進行無源定位的演算法。On the basis of theory analysis, the average transmitted light intensity ( correspond to dc value ) was determined as characteristic parameter of raw water using photoelectric method for monitoring the fluctuation of transmitted light and photometric dispersion analyzer ( pda ). the dc value was closely related to both particle concentration and surface area of sand clay simultaneously. the experimental results shows that there is an exponential function relation between dc and surface area of sand clay in unit volume water ( sp ) : dc = asbp in which a and b are empirical coefficients. then the formula of macromolecule flocculant dosage is found to be d = f ( dc ) = e ( dc ) f in which e and / are empirical coefficients and the average correlation coefficient equal to 0. 981. so the model of automatical control system of water treatment plant was established using the formula
應用透光率脈動檢測技術和光散射顆粒粒度分析儀( pda ) ,通過理論分析,將pda的輸出信號之一? ?平均透光強度(對應于dc值)作為原水的特性表徵參數, dc值可以同時反映顆粒濃度和比表面積因素的影響,試驗結果證明, dc值與單位體積水中泥沙顆粒總表面積s _ p之間具有很好的冪函數關系: dc = cs _ p ~ d ,式中c 、 d為經驗系數,進而得到了以dc值為參數的高分子絮凝劑投藥量公式: d = f ( dc ) = e ( dc ) ~ f ,式中: e 、 f為經驗系數,平均相關系數達0 . 981 ,利用所建立的公式,建立了前饋? ?后饋聯合控制的在線自動投藥模型。In this thesis, based on a digital signal processor tms320f240, a controller for pmsm is researched an designed. we analyzes the mathematics model of pmsm, researchs vector control of pmsm and space vector pwm, discusses the controller of position, speed and current, designs the mrfas position controller, pid speed controller and pid current controller, sets up pmsm ac servo control system, designs dsp controller, and develop the corresponding sofeware. at last, the designed controller is simulated under matlab / simulink, and the results are gived
分析了水磁同步電機的數學模型,研究了永磁同步電機的矢量控制方法和空間矢量脈寬調制原理,討論了位置環、速度環和電流環的控制方法,設計了模型參考模糊自適應位置控制器、 pi速度器和pi電流控制器,組建了永磁同步電機交流伺服控制系統,設計dsp控制器,並開發了相應的軟體。最後在matlab simulink環境下對系統進行了動態模擬,並給出了模擬結果。3. the results of model test were analyzed. it is concluded that the performance of the model turbine is satisfying, with press pulsation on some operation point exception
西安理工大學工程碩士學位論文3 、通過對模型驗收試驗的結果進行詳細的分析,結果顯示除部分工況點的壓力脈動值外,模型轉輪的各項性能滿足合同要求。Based on analyzing the operational principles of actuators system, the control strategy and speed regulation of bldcm are described emphatically, and the reason of its torque ripple and the way to eliminating or suppression are analyzed and illustrated, the control algorithms of single dsp to control four actuator of rudder which work independently have been studied, and the design schemes are given
論文在分析了舵機系統的工作原理基礎上,重點研究了bldcm的調速方法與控制策略,對bldcm的轉矩脈動產生原因及其抑制方法也進行了詳細分析與探討,給出了單dsp控制四個相互獨立工作舵機的控制演算法,並提出了整個舵機位置伺服控制系統的設計方案。The operating principles of svpwm and associated control algorithms are also covered in the paper. by using svpwm to control the magnitude and phase angles of the spatial voltage vector, the speed control of the drive system in this paper can reduce the output of current harmonics, lower the torque ripple, and improve the energy efficiency
本文還對svpwm的工作原理和控制演算法進行了研究,控制系統採用svpwm演算法,通過對空間電壓矢量的幅值和相位的控制來調節電機轉速,減少了逆變器輸出電流的諧波,降低了脈動轉矩,提高了電壓的利用率。Then, under the condition of satisfied the output volume request, a designing method of parametrically designing hydraulic motor with multi cylindrical gear is proposed aiming at minimal cubage with by means of visual c + + 6. 0 software, a calculating method of parametrically designing hydraulic motor with non - circular planetary gear is proposed aiming at maximal unit displacement and the minimal pulsation ratio by means of visual c + + 6. 0 software, and some designing method examples are provided for verifying the accuracy and possibility of those design methods
再次,在滿足排量要求條件下,以體積小為設計目標,利用visualc + + 6 . 0軟體對圓柱多齒輪式液壓馬達進行了參數化設計軟體的開發;另外,以單位體積排量最大為設計目標,以流量脈動率最小為約束條件,利用visualc + + 6 . 0軟體對具有圓柱行星齒輪的非圓行星齒輪液壓馬達的參數化設計軟體進行了開發。After the discussion of the algorithm of complexity parameters, lyapunov exponent and apen, the pressure fluctuation in fluidized beds is analyzed quantitatively. the effect of different operating conditions, such as variant gas superficial velocities, axial positions and static bed heights, is discussed
在討論復雜性參數、 lyapunov指數、近似熵的演算法基礎上,對流化床壓力脈動進行定量分析,討論了表觀氣速、軸向位置、靜床高等不同操作條件對混沌特徵參數的影響及其對應的動力學規律。The method of coherence analysing by use of ground pulsation and event data by two seismometers is presented to develop the calculation model and operation method for seismeter ' s orientation
闡述了用待安裝地震計和參考地震計獲取的地脈動數據及事件數據進行相干性分析,精確確定待安裝地震計安裝方位的理論計算模型和實際操作方法。Second, the math model of the switched reluctance motor ( srm ) is established and its static performance is analyzed by two methods, which are the equivalent magnetic network method and the nonlinear magnetic parameter method ; the actual current and torque waveforms are given in the control of apc and ccc
其次,採用等效磁網路法和非線性磁參數法分別建立了開關磁阻電機的數學模型,對開關磁阻電機的穩態性能進行了分析,得出角度位置控制和斬波控制方式下的開關磁阻電機的電流波形及轉矩脈動波形,並對兩種方法進行了比較分析。This system provides pulse signal and direction signal to step motor driver by computer ’ s controlling step motor control card, and makes motor and guage ’ s pointer rotate. computer gets the micro displacement measured by grating measuring system via rs232 serial port, and acquires guage ’ s image by high precison ccd camera, then processes the guage ’ s image by software, including pre - processing, graying, binarization, thinning and hough transform, so as to recognize the position of guage ’ s pointer, finally calculates all kinds of precision on basis of algorithm established by national detecting rules of gauges
本系統通過計算機控制步進電機控制卡來給出步進電機驅動器需要的脈沖信號和方向信號,進而帶動電機驅動儀表指針轉動,計算機通過串口實時採集光柵測量系統的微位移信號,並且通過高精度ccd攝像機實時獲取表盤圖像數據,同時通過計算機軟體實現表盤圖像處理,包括預處理、灰度化、二值化、細化和hough變換等,最終快速識別出表盤指針的位置,並根據國家表類檢定規程所制定的演算法檢定出指針式儀表的各種精度。The fluctuating omnidirectional wind pressure power spectrum density ( psd ) of some typical locations and the frequency domain coherence property of the fluctuating wind pressure between different tapping positions at different wind directions were measured and discussed
文中進一步測量並討論分析了屋蓋上典型測點脈動風壓的頻譜特性以及空間不同位置之間的相干特性。分享友人