電針機 的英文怎麼說
中文拼音 [diànzhēnjī]
電針機
英文
electric stimulator-
Refer to the damage problem to the motor of c41 - 400 air hammer caused by driving system fault, an acknowledged improvement that is adding a v - belt driving into the system has been promoted with failure situations occasionally because of irrational supporting structures
摘要針對c41 - 400型空氣錘由於傳動系統故障而導致電動機損壞的問題，通常的改進方案是增加一級v帶傳動，但由於對改造中的支承設計不合理而失敗的情況也時有發生。Depend on the comprehensive analysis and study of the structure, principle, and exterior characteristic of the motor, through the methods of system modeling and digital simulation analysis, two kind of control device that work for the low voltage ( lvdc ) and the high voltage ( hvdc ) in avigation are researched respectively. point to the control technique of close - loop speed stabilization at a limited adjustment speed range, we bring out the close - loop speed control method that using the rotor position sensor indirectly measure the speed of the motor
在全面分析了稀土永磁無刷直流電動機的結構特點、工作原理、運行方式以及外部特性的基礎上，通過系統建模和數字模擬分析，分別針對航空低壓直流（ lvdc ）和高壓直流（ hvdc ）兩種電動機構用永磁無刷電動機，在小范圍轉速連續調節下的閉環穩速控制技術進行了詳細理論研究，提出了利用轉子位置傳感器信號間接測量電機轉速進行電機轉速閉環穩速控制的策略。Aiming at permanent brushless dc motor in mini - bev ( battery electric vehicle ) with torque ripple and violent noise during low speed running, the fuzzy control method is combined with slide mode control method to suppress the influence due to un - modeling parameters, and to ensure the robustness in the process of reaching slide mode plane
摘要針對微型電動車用永磁無別電動機轉矩脈動大、低速運行時噪聲明顯等主要問題，採用模糊控制和滑模控制相結合的方法，克服了未建模參數的影響，保證了滑模到達階段的魯棒性，同時抑制了轉矩脈動。The thesis is devoted to exploiting a permanent magnet synchronous machine ( pmsm ) for the parallel hybrid electric vehicle ( phev ). three parts are included as follows : at first, in the electromotor state, the current control strategies of pmsm are determined. giving the elementary method for solving the contradiction between enhancing the pmsm ' s flux - weakening capability in the electromotor state and reducing the pmsm ' s connatural adjustment ratio in the dynamotor state
本課題的研究工作主要圍繞開發一臺並聯式混合動力電動汽車（ phev ）用永磁同步電機（ pmsm ）展開，所作的工作主要包括以下幾個部分：首先，確立了phev用pmsm電動機運行狀態時的電流控制策略，針對pmsm在電動機運行狀態時提高弱磁擴速能力和在發電機運行狀態時減小固有電壓調整率的相互矛盾，提出了初步的解決方法。Cycloidal needle wheel type motor
擺線針輪電動機Microsyn plays an important part in automatic control system. we now analyse the function and range of all kinds of microsyn in the market ， and make full use of it
針對小功率同步電動機在自動控制系統中佔有重要地位的特點，分析當今市場上各種微型同步電機的性能及適用范圍，以使之能得到充分的應用。In this system, the movement of the step - electromotor is controlled by computer, and then the dial pointer is drove by the step - electromotor. at the same time, these images of the analog instrument are took by high precision ccd video, and then these images will be processed by the computer, using some image - processing algorithms such as image segmentations, threshold identification, image binarization, areas labeling, dial center - point identification, useful areas identification & abstracting, and areas thinning, etc. followed this, the dial pointer of the “ circle ” is able to be located. at last, the dial pointer position will be recognized by the computer
本系統由計算機控制步進電動機的運動，進而驅動指針式儀表表針的運動，並且通過高精度ccd攝像機實時獲取表盤圖像數據，同時進行表盤圖像的相關處理，包括圖像分割，閾值確定，圖像二值化，區域標記演算法，圓心擬合，有效區域識別提取，區域細化等，最終快速識別出表盤指針所處位置;最後，根據國家指針式儀表類檢定規程所制定的演算法計算出該儀表的相關誤差，檢定指針式儀表的各種精度，通過這些數據判斷該儀表是否合格，列印該儀表的檢定結果報表。The thesis roots in the item supported by " fifteen " aviation funds, - new type aeronautic linear dc motor ( ldcm ), study its classes characteristics and work principle, mainly researches the drive and control technique of aeronautic linear dc step motor ( ldcsm ) using in emergency discharging oil valve on airplane
本文源於「十五」航空支撐基金項目-新型航空用直線直流電動機。論文研究了直線直流電動機的分類、特點及其工作原理，重點針對飛機應急放油閥用航空直線直流步進電動機驅動控制技術進行了研究。For the bldcm which has a pseudo - sinusoidal back - emf waveform, this dissertation presents a svpwm control method using six discrete position signals for minimizing the torque ripple. the main aspects for the implementation of this method are analyzed, including the initial orientation of the voltage vector, reasonable choice of the impedance angle and the advance commutation angle, and estimation of the successive rotor positions
針對反電動勢類似正弦的準正弦波反電動勢無刷直流電動機，本文提出一種基於六個離散位置信號的自同步svpwm （電壓空間矢量法）控制方法，用以削弱電磁轉矩脈動，分析了實現這種方法的主要控制環節，包括起動時電壓空間矢量的初始定位，阻抗角與電流超前角的合理選擇以及連續轉子位置的估計等。Through consulting lots of relevant references, present research of direct drive volume control hydraulic servo system is summarized in this paper, the principle and character of this system are expatiated, the principle of vector control is introduced. at the same time, the mathematical model of ac asynchronous motor is set up based on the vector control theory. the mathematical models of both the pump controlled motor and pump controlled cylinder are set up and simulated in this paper
在查閱大量國內外相關文獻的基礎上，本文綜述了國內外對該系統研究概況，闡述了該類系統原理和特點;闡述了矢量控制的基本原理，並基於這一原理建立交流異步電動機的數學模型;分別建立了泵控馬達系統和泵控缸系統的數學模型，並給出了模擬分析;設計了用於泵控馬達系統的集成閥塊，加工了密閉壓力油罐;針對現有直驅式電液伺服裝置所存在的問題，本文主要針對系統工作過程中所產生的噪音與爬行問題進行了一定的研究。The computer acquires the image of dial gauge by high precision ccd video, after that the computer will process the dial gauge image by some image - processing algorithms such as image segmentations, edge searching, area segmentations and locating the pointer by the " circle ". at last the computer will recognise the dial pointer position and work out the precision of dial gauge in accordance with nation criterion of dial gauge. this study presents several optimum algorithms to realize quick recognition of the pointer and calibration lines of detected dial and improve the accuracy and real time quality of detecting
本系統由計算機控制步進電動機的運動，進而驅動指示表表針的運動，通過高精度ccd攝像機實時獲取表盤圖像數據，同時進行表盤圖像的相關處理，包括閾值分割、邊緣檢測、圖像銳化以及區域分割和定心圓檢測等，最終快速識別出表盤指針所處位置，最後根據國家指示表類檢定規程所制定的演算法檢定出指示表的各種精度，本系統所採用的圖像處理演算法運算量少，速度快，從而大大提高了系統的實時性。It seemed that the adjustment of ear acupuncture is controlled by some factors that are unknown now ; 4. pc and npc are different areas on ear. but the difference of adjustment between them is relative. 5
電針耳穴胸肺區、非胸肺區對心血管功能產生調節的機理可能與pgl的gaba遞質系統有關; 3 .電針耳穴的調節機制在不同狀況下可能受某些因素的不同調控; 4 ，耳郭胸肺區與非胸肺區是有區別的耳區，但功能的特異性是相對的。Digital signal processor ( dsp ) combined with repm bldcm, which build up a dc adjustable speed system, achieve to control multiple motor speed, positive and negative rotate, protect and fault exemine by a true single chip. design and present a electromagnetism scheme of repm bldcm used in electromotion chair drive system. select electronical components and chips in the drive board by contrast with variant drive mode. design the drive board principle picture, make a drive board pcb and debug it. design a principle picture with dsp core. workout the motor control code introduced popular programme modle. test the programme reliability and control performance by linking tms320lf2407 evm, pc, drive borad and the bldcm. the bldcm swatch is prepare experiment
本論文闡述了方波驅動稀土永磁無刷直流電動機的原理及數學模型；設計並給出了一種電動座椅用稀土永磁無刷直流電動機的電磁設計方案；對電機採用何種驅動方式進行了對比分析；對驅動電路進行了元器件選型、原理圖設計、制板及調試；有針對性的闡述了dsp在本系統應用中所涉及到的功能模塊；設計了以dsp為核心的控制電路原理圖；以模塊化的軟體編程思想編制了電機控制軟體；通過tms320lf2407目標板、上位機、驅動板及電機的聯調，證明了系統可行。Through analyzing and researching the problem of variable frequency to working frequency of high - power electromotor in theory, the key of conversion is pointed out in the paper. on the basis of analyzing equivalent circuit diagram and vector - diagram of induction - motor, the phase of working frequency power whether or not consistent with the output phase of variable frequency power at the moment of conversion is the key to decide whether the conversion is successfully
本論文針對大功率電機變頻轉工頻轉換存在的問題在理論上作深入細致的研究，根據感應電動機的等效電路和相量圖分析，指出大功率電機變頻轉工頻能否成功，關鍵在於變頻轉工頻瞬時，工頻電源和變頻輸出電源是否相位一致。Single face color - jacquard terry fabric is produced on the single jersey knitting machine featuring electronically controlled individual needle selection
摘要具有單針電子選針機構的單面圓緯機能生產彩色提花單面毛圈織物。Analysis and computer simulation of electric flat knitting machine ' s selecting mechanism
電子提花橫機選針機構的分析與模擬This paper describes principle and general design on rotating deflector of the laser scanner according to application. theory on brushless dc motor is studied and structures of the mechanics and control system have been designed according to special requirements of the rotating laser scanner. the scanning motor developed has been tested synthetically in performance
本論文針對轉鏡式激光掃描器的應用，實施了轉鏡式激光掃描器的原理及總體方案設計，對無刷直流電動機的理論進行了探討，並針對轉鏡式激光掃描器的特殊要求進行了掃描器的機械結構及其控制系統的結構設計，對研製的掃描電機的性能進行了綜合實驗。In accordance with the driving characteristics of ac driving locomotive, the working status of its traction transformer is analysed. the questions that should be considered in the traction transformer design of ac driving locomotive are mentioned. these questions are the large short - circuit impedance of traction winding, higher harmonic current, over - excitation and dc magnetization caused by large variation of the network voltage, etc. some disposal methods are given
針對交流傳動電力機車的傳動特點，對其中的牽引變壓器的工作狀態進行了分析，指出交流傳動電力機車用牽引變壓器設計時需考慮的牽引繞組的短路阻抗大、電流的高次諧波、網壓波動大可能引起的過勵磁以及直流磁化等問題，同時給出了相應的一些解決方法。For overterm service of unit equipment in thermal plant, taking high temperature compression part ( steam pipe ) for example, the paper introduced a three grade appraisal method and calculated the residual life of high temperature compression part using fixed asset linear method, establised a economic life mathematical mode, finally gave out a general economy appraisal for high temperature compression part with a calculation example
針對火力發電廠機組設備的超期服役，以高溫承壓部件蒸汽管道為例，以其運行工況為基礎，結合材質狀況，逐步實行三級評定，計算高溫承壓部件的剩餘壽命，利用固定資產線性折舊法對設備進行折舊計算，同時建立經濟壽命的數字模型，綜合評定高溫承壓部件的經濟性，並列舉了算例。Possible mechanism of electroneedle in treating rheumatoid arthritis in experimental rats
電針治療實驗性大鼠類風濕性關節炎的可能機制分享友人