機電濾波器 的英文怎麼說

中文拼音 [diàn]
機電濾波器 英文
electromechanical filter
  • : machineengine
  • : Ⅰ名詞1 (有電荷存在和電荷變化的現象) electricity 2 (電報) telegram; cable Ⅱ動詞1 (觸電) give...
  • : 動詞(除去液體雜質) filter; strain
  • : Ⅰ名詞1 (波浪) wave 2 [物理學] (振動傳播的過程) wave 3 (意外變化) an unexpected turn of even...
  • : 名詞1. (器具) implement; utensil; ware 2. (器官) organ 3. (度量; 才能) capacity; talent 4. (姓氏) a surname
  • 機電 : electromechanical機電設備 electromechanical equipment; electromechanical device
  • 濾波器 : [電子學] electric filter; (electric) wave filter; filter
  1. In this paper, the design of a practical sort of high performance biquadrates elliptic active band - pass filters is emphasized, and then the design techniques and how to calculate the resistors and capacitances, how to make computer simulation and tolerance analysis with computer are described in detail

    摘要本文我們重點介紹了一種實用的雙二次型高性能橢圓函數有源帶通的設計方法,詳細介紹了該的設計步驟及阻容元件的參數計算,並對設計出的路用計算進行模擬模擬和容差分析。
  2. The second, the main work in the paper is discussed. they are include : the theory and character of electromagnetic leaking from a computer ; the theory of accumulation mean filter and pectination filter ; the analysis of synchronous signal precision, at 10 - 12 second level, for stably intercepting ; the technology requirement of receiver and data acquisition board for clearly displaying the images recovered from the intercepted data

    本文從計算視頻磁泄漏和數字兩方面的基本理論出發,詳細論述了計算視頻信息磁泄漏的原理及特點,指出視頻泄漏信息的頻譜是以行頻為周期的譜線;分析了重加和梳狀的性能;分析了視頻泄漏信息截獲的條件;推導出穩定截獲視頻泄漏信息需要對同步信號的精度控制在皮秒級;論述了清晰再現對接收和數據採集卡的技術要求。
  3. The algorithm can not only eliminate the influence of the cumulative errors of the photoelectric code recorder, but also it can satisfy the requirement of the real - time control. a direct inverse model controller of fuzzy neural network with changeable structure based on takagi - sugeno inference is presented and it is used to the motion control of mobile robot. in order to avoid the obstacles successfully, detection results from ccd and ultrasonic sensors are fused by a fuzzy neural network, which acts as an avoidance controller

    包括移動人的融合自定位問題:移動人利用光編碼進行自定位,同時用擴展卡爾曼融合多個超聲傳感的測量值,採用回朔演算法將融合值用於復位光編碼,消除了光編碼累積誤差的影響,並能滿足實時控制的要求:並提出一種基於takagi - sugeno模型的變結構模糊神經網路直接逆模型控制,並應用於移動人的運動控制;利用模糊神經網路避障控制融合ccd攝象與超聲傳感探測到的環境信息,以實現人的安全避障。
  4. This paper mainly focuses on the noise limiting by means of the direct sequence spread spectrum ( dsss ) and the analysis of the transmission performance of the plc and some digital modulation technology. the contents of the paper is as follows : 1 ) the technical feasibility is proved after simulating noise limiting principle of dsss by means of systemview, the simulation software ; 2 ) a kind of band pass filter ( bpf ) is realized according to the requirement of filter and the principle of butterworth approximation, which satisfies the index of performance of dsss. 3 ) the low voltage plc system includes the sc1128, the specific modulation / demodulation ic, the bpf filter and other circuit components, furthermore, the control function of system is realized by means of the personal computer and the microcontroller

    本課題在對低壓力線的傳輸特性和數字調制技術進行分析的基礎上,將通信理論中的直接序列擴頻技術( dsss )用於解決低壓力線通信的干擾問題,主要研究內容如下: ( 1 )用通信模擬軟體systemview對dsss技術的通信和抗干擾原理進行模擬分析,分別對時域和頻域下採用dsss技術前後接收信號的頻譜進行分析,驗證dsss技術在本系統中的可行性; ( 2 )由dsss技術對系統的要求,根據理論分析了巴特沃思型的逼近原理並設計了合適的路; ( 3 )用調制解調晶元sc1128和自行設計的加之輔助外圍路,構造出低壓力線載通信系統,並採用atmel公司的單片設計了接收和發射路的微控制; ( 4 )分別對採取抗干擾措施前後輸入和輸出信號進行對比實驗,並對結果進行分析,驗證了dsss技術對干擾信號的抑制作用。
  5. 3. with comprehensive improvement of transponder including structural adjustment to lna ; optimization of ( phase locked loop ) pll filter ; structural adjustment to the transmitter and phase error adjustment to the intermediate frequency demodulation circuit, we have successfully enhanced sensitivity, expanded dynamic range, increased transmitting power and improved the spectrum purity ; decreased capture time for pll ; improved the signal quality after demodulation ; reduced its volume and power consumption. 4

    3 、對通信的全面改進,包括lna結構的調整、鎖相環環路的優化、發射部分結構的調整以及中頻解調路的相差調整,提高了系統的接收靈敏度、改善了本振的頻譜純度、減少了鎖相環的鎖定時間、使中頻解調后的信號質量大為提高,同時還減少了體積、節約了系統的功耗。
  6. Based on the theoretical studies, a band - pass filter circuit is optimized in order to decrease current density and increase the electromigration lifetime

    在理論研究基礎之上,藉助于計算輔助設計,針對一個帶通路進行了路優化,以提高其遷移壽命。
  7. According to the characteristics of dtc ( direct torque control ) in induction machine, this paper analyzed the estimation error of flux linkage and torque, and introduced an improved method of flux estimation, a compensation method based on low - pass filter

    摘要根據感應直接轉矩控制的特點,對低速下磁鏈觀測誤差產生的原因進行了分析,給出了一種磁鏈觀測的改進方法低通補償法。
  8. Critical circuits in developing this board, such as tht modulation circuit, demodulation circuit, pll and filter, were analyzed in detail. parameters adopted in these circuits were also calculated. based on all that mentioned above, a rf board was implemented and related tests and experiments were successfully done as well

    本文主要對cdpd移動終端數據的硬體開發中的關鍵部分?高頻部分路進行了研究,論文在cdpdv1 . 1規范的基礎上,提出了射頻部分路的實現方案,選擇了合適的核心晶元,並對路中的調制解調路、鎖相環、等關鍵模塊進行了較為詳細的分析,對路中的有關參數進行了計算。
  9. In the simulation work, one 1. 5kw and one 18kw induction motors ? control system were simulated and two simplified control scheme were proposed. when developing the program in tms320f240 dsp, this paper solved two practical problems : the finite - length effect and dc bias effect. finally, sensorless control system based on adaptive filter theory are tested on the platform of 1. 5kw induction motor, the results show that the scheme ? performance is good

    在模擬過程中,針對1 . 5kw和18kw異步進行了模擬,並在此基礎上提出兩種簡化控制方式;在tms320f240的具體編程過程中,分別對自適應的有限字長效應、直流偏置效應等非理想因素進行了修正和補償;最後,在1 . 5kw微型異步上進行了轉矩閉環無速度傳感實驗,實驗結果表明了演算法完全可以達到預期的目標。
  10. The author studied the character of traditional hysteresis control strategy by theoretical analysis, computer simulation and experiment

    全文圍繞力有源在傳統滯環控制技術的特性進行了比較全面的理論分析、計算模擬與實驗研究。
  11. This paper include the following parts. firstly the sine exciting - voltage is guaranteed by direct digital synthesize technology ; secondly the digital output of cos ( 9 ) and sin ( 9 ) are generated by microcontroller ; thirdly the two voltage signals which are the product of the two former signals gained by the multiplying d / a converter, being filtered and amplified, have constant frequency, and one amplitude has sine function relationship of with the input angle, and the other amplitude has cosine function relationship of with the input angle ; finally the two signals are acquired and analyzed by relative instrument and software

    主要由以下幾部分組成:用數字頻率合成技術( dds )產生正弦激勵壓信號u _ msin ( t ) ;用單片產生幅度的數字量輸出sin ( )和cos ( ) ;用乘法型d a轉換實現激勵壓和幅度的乘積,並通過和功放后即得到頻率固定,幅值隨輸入角成正餘弦變化的壓信號;最後用數據採集卡採集輸出信號,顯示形並進行頻譜分析。
  12. Ultrasonic wire bonding was applied to connect the contacts and sub - miniature - a ( sma ) connectors. also a suitable shield box has been designed for the test of hts filters

    對于超導的焊接,採用超聲點焊焊接sma的接頭和高溫超導的接觸極,實現了較小的接觸阻和較好的械強度。
  13. In practical studies, finally, a hybrid active power filter based on the digital signal processor ( dsp ) and intelligent power module ( ipm ) was set up, including a cycloconverter acem. based on the experimental set - up, plenty of experimental studies were conducted. the experimental results demonstrate that the self - adaptive technique, the topology of series connected hybrid power filter and the corresponding significant technologies described above are feasible and practical

    最後,實際研製了一套以dsp (高速數字信號處理)和ipm (智能功率模塊)為核心的小功率混合型有源裝置,在交交變頻acem實驗平臺上進行了全面的實驗研究,充分驗證了本文所提出的自適應同步相關技術、優化混合型拓撲結構和有關的關鍵性技術的正確性和實用性,從而從理論到實踐全方位、成功地實現了對交流勵磁發輸出力諧抑制的研究。
  14. Microfilter is mainly used to separate the data and voice transmission on the same phone line

    每一個話分已安裝了寬頻確保資料傳輸不被話音傳輸所影響。
  15. Connection fee includes any necessary connection within ctm, configurations and the relative working processes in addition to the on - site installation of the adsl modem, microfilter ( if necessary ) provided by ctm, adsl modem lan cable ( if applicable ), and the necessary software configuration. ctm shall only perform the installation of modem and microfilter provided by ctm

    接駁費適用於澳門訊內部進行所需之接駁、設定和相關工序以及上門安裝由澳門訊提供之非對稱數字用戶環線數據及微型(如需要) ,非對稱數字用戶環線(如適用)及所須之軟體裝置。
  16. The speed sensorless techniques for dtc system are very fascinating and challenging subjects recently, they are received wide attention in the literature. some brief description is provided. the proposed approaches are based on speed model of dtc, motor reference adaptive control, the instantaneous reactive power of motor and the extended kalman filter

    無速度傳感調速系統是直接轉矩控制研究領域內一個非常熱門的研究方向,本文介紹了無速度傳感技術的發展歷史及目前的研究狀況,分別利用直接轉矩控制的轉速模型方法,模型參考自適應方法、定子反動勢以及擴展的卡爾曼等方法設計了無速度傳感系統,對于其數學模型和系統構成作了比較詳細的推導。
  17. Because the contact resistance between the metal contacts and the superconducting films has large impact on the performance of superconducting filters, we experimental techniques. after annealing the optimum temperature and, we got the minimum contact resisitivity. we also further studied the interaction between ag and ybco films after annealing at a certain temperature and attempted to give an explanation and discussion

    金屬接觸極與超導薄膜之間的接觸阻對超導的插入損耗有很大影響,因此,本文通過多種實驗方法,系統的研究了ag與ybco超導薄膜之間的接觸阻問題,得到了最佳退火溫度,並對退火時ag與ybco超導薄膜之間相互作用的理進行了研究和探討。
  18. At this time, the approximate mechanical model of devices has been put forward, which frequency is 70 mhz, then we analyzed the euler ? bernoulli equation, find that the frequency is determined by the resonator ’ s density thickness and length ; the free - free - beam 、 coupled beam 、 support beam 、 transducer have been designed ; the model was simulated and modal analyzed on the coventorware and were consistent with the designed parameter. the silicon surface microfabrication process was developed and emphatically introduced several key surface microfabrication technologies, and was simulated by coventorware

    本文通過分析歐拉-貝努立方程,得出的共振頻率主要由諧振梁的密度、厚度和長度決定,考慮切變形和轉動慣量的情況下,完成微械諧振梁、支撐梁、驅動容的設計;在coventorware軟體上進行模擬,分析結果與理論設計比較好地吻合;對微的加工工藝進行設計,給出件的完整的工藝流程,重點介紹微械表面加工工藝,並在coventorware上進行模擬。
  19. This research about the uhf frequency synthesizer mostly includes the following parts : 1 ) the dds modules include the dds ad9852 part, the lc band pass filter design part, the amplifier design part and lc low pass filter part. 2 ) the pll modules include the design of the loop filter which is the core of pll, lc band pass filter design and the amplifier design. 3 ) the controller modules of the system include the part of pc rs - 232 com port communication with the mcu and the part of the process of controller about urat and mcu

    本課題的研究主要包括以下幾個方面的內容: 1 ) dds模塊設計:包括ad9852部分、 lc帶通設計部分、放大設計部分; 2 ) pll模塊設計:包括pll關鍵部件環路設計、 rflc帶通設計、末級放大設計部分; 3 )控制模塊設計:包括計算與單片串口通信的路設計部分以及程序設計部分。
  20. Consulting relevant reference and related theories in software radio, this thesis is working on technologies of digital channelized receivers, including the theories on a / d sampling, digital down converter, multi - velocity signal processing, polyphase filter and uniform dft filter bank

    本文針對子偵察系統數字化實現,對數字式通道化接收的相關技術進行了研究:包括a / d采樣的理論、數字下變頻相關理論、多速率信號處理的理論、多相結構優化抽取、均勻dft組。
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