直流測功器 的英文怎麼說

中文拼音 [zhíliúcègōngqì]
直流測功器 英文
direct-current dynamometer
  • 直 : Ⅰ形容詞1 （成直線的; 硬挺的） straight; stiff 2 （跟地面垂直的; 從上到下的; 從前到后的） erect; v...
  • 流 : Ⅰ動1 （液體移動; 流動） flow 2 （移動不定） drift; move; wander 3 （流傳; 傳播） spread 4 （向壞...
  • 測 : 動詞1. （測量） survey; fathom; measure 2. （測度; 推測） conjecture; infer
  • 功 : 名詞1 （功勞） exploit; merit; meritorious service [deed]: 戰功 military exploits; 立功 render me...
  • 器 : 名詞1. （器具） implement; utensil; ware 2. （器官） organ 3. （度量; 才能） capacity; talent 4. （姓氏） a surname
  • 直流 : direct current （dc）; constant current; steady current; continuous current; zero frequency curre...
  1. There are over 80 sets test apparatus in tech - innovation centre, including : anechoic chamber, vibration tester, vibration measurement analysis, impact instrument, constant temperature and humidity facilities. salt spary test case, circle insulation withstand voltage tester, insulation resistance tester, withstand voltage tester, electric lead tester, electrical leakage tester, earth resistance tester, chassis dynamometer, chassis dynamometer control system, high stability dc resistance tester, electrical capacity tester, temperature rise test system

    中心擁有各類分析測試儀器和試驗裝置80餘臺套，包括：消音室振動臺噪聲振動測試分析系統沖擊儀恆溫恆濕實驗儀鹽霧試驗箱匝間耐壓分析儀絕緣電阻分析儀對地耐壓分析儀泄露電流測試儀對地電阻測試儀測功機測功機控制系統高精度直流電阻測試儀電參數測試儀帶電溫升測試儀復合式三坐標測量儀萬分投影儀及電功測試分析系統等。
  2. The carrier wave is modulated directly by the baseband signal at several frequency point in l band and s band. firstly, this paper clarifies the theory of i / q modulation, elaborates evm and acpl, and analyzes the effect of amplitude and phase unbalance and dc offset on evm. secondly we review the basic principle of phase locked loop and it ’ s composing parts, including the basic conception and design method of pll frequency synthesizer, especially introduce the charge pump pll frequency synthesizer in detail

    首先，在闡述i / q正交調制基本原理的基礎上，通過對誤差矢量和鄰近通道功率泄漏的詳細分析，定性、定量地討論了各種非理想電路因素（如相位不平衡、幅度不平衡、直流偏差等）對調制器性能的影響;其次，介紹了鎖相環的工作原理和基本組成部分，包括鎖相環的設計和環路濾波器的設計，特別詳述了電荷泵鎖相頻率源;第三，介紹了採用直接調制技術模擬衛星信號的射頻前端的設計;最後，對整個直接射頻調制系統進行測試，結果基本上達到了課題要求。
  3. It can directly control and drive the stepmotor and dc servomotor, and it can control the ac servomotor by controlling the ac transducer, and it also has the function of detecting the feedback position signal of photoelectric coder and induction phase shifter

    它能直接控制和驅動步進電機和直流伺服電機，並可通過控制交流變頻器對交流伺服電機進行控制，而且具有光電編碼器和感應移相器位置反饋信號檢測功能。
  4. At the aspect of hardware design, it adopts pulse distributor and the technology of single polar voltage drive to accomplish the function of controlling and driving stepmotor ; it adopts the technology of pulse width modulation and cmos h - bridge drive to accomplish the function of controlling and driving dc servomotor ; it adopts d / a convertor to accomplish the function of controlling ac transducer ; it adopts the technology of digital phase detection to accomplish the function of detecting the feedback position signal of induction phase shifter ; it adopts dsp ’ s capture cell to accomplish the function of detecting the feedback position signal of photoelectric coder

    硬體方面，採用脈沖分配器和單極性電壓驅動技術實現了步進電機的控制和驅動功能;採用脈寬調制技術和cmos互補h橋驅動技術實現了直流伺服電機的控制和驅動功能;採用d / a轉換器實現了交流變頻器的控制功能;採用數字化相位檢測技術實現了感應移相器位置反饋信號的檢測功能;採用dsp的捕獲單元實現了光電編碼器位置反饋信號的檢測功能。
  5. The bias magnetic field of the bias coil driven by bias current and small signal test current, results in the induced signal of the control coil. the terminal voltage of the control coil is detected by the test circuit. then the signal containing the information of rotor displacement is obtained, from which we can get the dc voltage signal proportional to the rotor displacement through half - wave rectification circuit and low pass circuit. this dc signal is put into a pid controller to get the control signal of the rotor displacement

    偏置測試電路向偏置線圈輸入偏置電流和小信號測試電流，兩者產生的偏置磁場在控制線圈產生感應信號，檢測電路檢測控制線圈端電壓並提取含有轉子位移信息的電壓信號，該信號經半波整流電路和低通濾波電路后得到與轉子位移成正比例的直流信號，再由pid控制器轉換為轉子位移的控制信號，最後控制信號輸入功放電路產生控制電流，實現閉環控制。
  6. Under windows nt and labview development environment, using the linear fit module, exponential fit module > general polynomial fit module of labview to design a method for fitting the experiment data, the results of curve fitting indicate that the purpose of general polynomial fitting is better than the rest. separating the equivalent input impedance of magnetostrictive transducers without stimulate current from input impedance of it with stimulate loop based on the results of curve fitting, and determining the syntony frequency and electric simulation network parameters of magnetostrictive transducers by this input impedance. finally, with labview network functions, realizing magnetostrictive transducer electric simulation system based on web server and discussing a scheme for this system network by datasocket. the method of this paper can more accurately determine the syntony frequency and electric simulation network parameters of magnetostrictive transducers than the testing method of syntony & anti - syntony. at the same time, discussing virtual instrument measurement system and how to realize magnetostrictive transducer electric simulation network system by labview network functions of network virtual instrument measurement development environment

    在windowsnt系統環境和labview虛擬儀器技術開發平臺下，首次利用labview中的直線擬合模塊、指數擬合模塊以及多項式擬合模塊，設計了一種對實驗所得數據進行曲線擬合的方法，對三種擬合方法進行了比較，曲線擬合結果表明，多項式擬合方法相對于其它兩種擬合方法效果更好；根據曲線擬合的結果可從帶激勵線圈的磁致伸縮換能器的輸入阻抗中分離出磁致伸縮換能器鐵芯在無激勵電流時機械振動形成的等效輸入阻抗，並由此輸入阻抗確定了磁致伸縮換能器的諧振頻率及其電氣模擬網路參數；最後通過labview提供的網路功能，實現了基於web服務器的磁致伸縮換能器電氣模擬虛擬儀器測試系統，並探討了通過datasocket技術實現該系統網路化的方案。
  7. By the way, a displaying system and a communicating system is added. this dissertation is divided into four chapters altogether : chapter one is the introduction, introducing the hore component and its important characteristic and putting forward the basic task ; chapter two introduce the principle of the auto - tracking system and respective parts of the auto - tracking system ; chapter three introduce the applications of auto - tracking system under static condition and dynamic condition and give out the experiment results ; chapter four introduced the displaying system, communicating system and the applicability of the auto - tracking system to other sensors

    本文共分為五章：第一章緒論中，介紹了霍爾元件及其一些重要特性，並提出了測量系統的基本方案；第二章詳細介紹了測量系統各部分的構成及原理，特別是對直流通道、溫度補償模塊和音圈電機為核心的隨動機構的論述；第三章介紹了實際系統在靜態測量和動態測量兩種模式下的應用及實驗結果；第四章介紹了系統的顯示功能和遠程通信功能並討論了系統對其它傳感器的適用性。
  8. Taking dc motor test as an example, a creative idea of applications of some advanced signal processing tools, such as time - frequency analysis, wavelet, and instantaneous frequency ( if ) evaluation, in motor testing field is presented. the paper systematically summarizes basic theories of time - frequency analysis and wavelet transform based on which an in - depth research of effective if evaluation based on wavelet ridge and wavelet curve is carried out. in the end a fast t - n characteristic testing system with neither torque nor speed sensor is successfully developed

    本論文主要關注小波分析在電機性能自動測試系統中的應用，針對傳統電機測試系統以及信號處理技術在電機測試領域中應用的不足，以直流電機為例，提出了將時頻分析、小波包變換以及基於小波脊的瞬時頻率提取方法應用到電機測試領域的新思路；較系統地總結了時頻分析和小波變換的基本理論，深入探討了基於小波脊線和小波曲線的瞬時頻率提取，並成功開發了基於正交小波包分析和基於小波脊線的瞬時頻率提取的無轉矩轉速傳感器的直流電機快速測試系統。
  9. The meter adopts digital synchronous sampling and micro technology to accurately measure true rms of transformer ' s primary voltage, current, power, power factor, true rms ( ac ) or average ( dc ) of secondary voltage and current, true rms of secondary voltage ripple

    該系列儀器採用數字同步采樣及微機技術，能準確測量變壓器的初級電壓、電流、功率、功率因數的真有效值，次級電壓、電流的真有效值（交流）或平均值（直流） ，次級電壓紋波的真有效值。
  10. Through establishing three mathematics models including the movement equation of the mechanical and electrical transmission system, the control of the load and the sliding in stable status, direct - current - brake of ac motor, this paper ascertained the range of the frequency value of drive motor and the efficiency of transmission system, calculated the efficiency of load motor in stable status and the moment of load motor in braking. this paper completed the design of the mechanical part of inertia brake test platform and provides a tool for the measurement of the inertia brake parameters

    本文還通過建立慣性制動器試驗臺的包括機電傳動系統的運動方程、穩態運行時負載與轉差率控制、交流電動機直流制動在內的三個數學模型，確定驅動電機的頻率取值范圍和傳動系統的傳動效率，驗算慣性制動器穩態運行時負載電機軸功率和慣性制動器制動時負載電機軸力矩，完成慣性制動器試驗臺設計中的機械部分，為慣性制動器各參數的測量提供工具。
  11. Intelligent tri - phase ac active reactive power instrument adopt advanced microprocessor carry out smart control, and to the inputed tri - phase ac voltage and current signal carry out accurate measurement, through cpu automatically count out the tri - phase ac active reactive power value total power, conduct clear and visual display by high brightness led display tube, it can be simultaneously transferred to standard voltage current signal to transmit output, and have super - limit control alarm standard serial communication function etc

    智能三相交流有功無功功率儀表採用先進的微處理器進行智能控制，對輸入的三相交流電壓與電流信號進行精確的測量，經過cpu自動計算出三相交流有功無功功率值總功率，由高亮度led數碼管進行清晰直觀的顯示，同時可轉換成標準電壓電流信號變送輸出，並具有超限控制報警標準串列通訊等功能。
  12. Adopt advanced microprocessor carry out smart control, and to the inputed tri - phase ac voltage and current signal carry out accurate measurement, through cpu automatically count out the tri - phase ac active reactive power value total power, conduct clear and visual display by high brightness led display tube, it can be simultaneously transferred to standard voltage current signal to transmit output, and have super - limit control alarm standard serial communication function etc

    採用先進的微處理器進行智能控制，對輸入的三相交流電壓與電流信號進行精確的測量，經過cpu自動計算出三相交流有功無功功率值總功率，由高亮度led數碼管進行清晰直觀的顯示，同時可轉換成標準電壓電流信號變送輸出，並具有超限控制報警標準串列通訊等功能。
  13. In the control system, ac inverters, dc rectifiers, remote distributed i / o, servo positioning controller, and touch panel form the dp slaves in the site field to realize the drive and control ; a siemens s7 - 300 plc, which acts as a dp maser, is used to harmonize the work among these dp slaves via fieldbus communication ; a ipc is used to display parameters, deal with alarm information, manage recipe, print report forms

    控制系統以交流變頻器、直流調速器、遠程分散式i o 、伺服位置控制器、觸摸屏等構成現場底層dp從站，實現各傳動點的驅動以及測控信息處理的現場化；以s7 - 300plc為dp主站，通過與各從站的總線通訊實現各從站工作的高度協調一致；以ipc為操作站，實現數據顯示、報警處理、配方管理、報表列印等功能。
  14. The displacement device has two kind of power supply, dc and ac, which can insure the stability and adaptability in field application. mc1404b counter chip responding for accurate signal replacement was set in the internal circuit. the display component adopts the 7135 led display circuit with common cathode

    測量儀採用交直流兩種形式供電，這樣既方便現場的使用又可以保證電源供電的穩定性，其內部電路中採用mc1404b計數器晶元，能夠準確的進行復位調零功能，顯示部分採用7135共陰極led的顯示電路，這種晶元精度高、解析度高、能準確檢出極性。
  15. In the hardware level, the system acquires motor armature current by wb current sensor and pci - 1202 card. hence wb current sensor, peripheral driving circuits, pc - 1202 card and its interfaces are respectively discussed in detail in the paper. as a perfect example of the new pattern testing system previously mentioned, the system has distinct advantages because it fully exploits abundant resources and rapid speed of pcs

    論文中介紹了一種無轉矩轉速傳感器直流電機快速測試系統，在硬體上，本系統由wb電流傳感器與pci - 1202數據採集卡共同完成電樞電流數據採集功能，論文詳細討論了wb電流傳感器，外圍驅動電路， pci - 1202數據採集卡及其與pc機的介面及其編程等等與軟硬體有關的問題。
  16. Intelligent single phase ac active reactive power double way instrument adopt advanced microprocessor carry out smart control and to the simultaneous inputed single phase ac voltage and current signal carry out accurate measurement, through cpu automatic count the single phase ac active power value, reactive power value, which is displied clearly and visually by the high brilliance led digital tube or high resolution light column, uper screen display active power and down screen display reactive power, and can select serial communication function

    智能單相交流有功無功功率雙路儀表採用先進的微處理器進行智能控制，對同時輸入的單相交流電壓與電流信號進行精確測量，經過cpu自動計算出單相交流有功功率值，無功功率值，由高亮度led數碼管或高解析度光柱進行清晰直觀的顯示，上屏顯示有功功率下屏顯示無功功率，並可選擇串列通訊功能。
  17. Intelligent three phase ac active reactive power instrument adopt advanced microprocessor carry out smart control and to the simultaneous inputed three phase ac voltage and current signal carry out accurate measurement, through cpu automatic count the three phase ac active power value, reactive power value, which is displayed clearly and visually by the high brilliance led digital tube or high resolution light column, uper screen display active power and down screen display reactive power, and can select serial communication function

    智能三相交流有功無功功率儀表採用先進的微處理器進行智能控制，對同時輸入的三相交流電壓與電流信號進行精確測量，經過cpu自動計算出三相交流有功功率值，無功功率值，由高亮度led數碼管或高解析度光柱進行清晰直觀的顯示，上屏顯示有功功率下屏顯示無功功率，並可選擇串列通訊功能。
  18. Save space on a lab bench or in a test rack with this flexible instrument, which can take the place of an ac source, dc source, powerful arbitrary waveform generator, as well as a sophisticated power analyzer

    這是一種多功能儀器，可用作交流源直流源強大的任意波形發生器，以及通用功率分析儀，從而節省工作臺或測試機架的空間。
  19. Adopt advanced microprocessor carry out smart control and to the simultaneous inputed single phase ac voltage and current signal carry out accurate measurement, through cpu automatic count the single phase ac active reactive power value which is displayed clearly and visually by the high brilliance led digital tube or high resolution light column, and can select serial communication function

    採用先進的微處理器進行智能控制，對同時輸入的單相交流電壓與電流信號進行精確測量，經過cpu自動計算出單相交流有功無功功率值，由高亮度led數碼管或高解析度光柱進行清晰直觀的顯示，並可選擇串列通訊功能。
  20. Intelligent single phase ac active reactive power instrument adopt advanced microprocessor carry out smart control and to the simultaneous inputed single phase ac voltage and current signal carry out accurate measurement, through cpu automatic count the single phase ac active reactive power value which is displayed clearly and visually by the high brilliance led digital tube or high resolution light column, and can select serial communication function

    智能單相交流有功無功功率儀表採用先進的微處理器進行智能控制，對同時輸入的單相交流電壓與電流信號進行精確測量，經過cpu自動計算出單相交流有功無功功率值，由高亮度led數碼管或高解析度光柱進行清晰直觀的顯示，並可選擇串列通訊功能。
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