無電流信號 的英文怎麼說
中文拼音 [wúdiànliúxìnháo]
無電流信號
英文
no signal current- 無 : 無Ⅰ動詞(沒有) not have; there is not; be without Ⅱ名詞1 (沒有) nothing; nil 2 (姓氏) a surn...
- 電 : 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...
- 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...
- 號 : 號Ⅰ名1 (名稱) name 2 (別號; 字) assumed name; alternative name3 (商店) business house 4 (...
- 電流 : current; galvanic current; electric current; electricity; current flow電流保護裝置 current protec...
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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。Pre - data gathering module achieves the collection and communication of sixteen - route temperature signal. speed measuring and controlling module realizes the control of refolw soldering transfer speed by manipulating transducer. on - off outputting module fulfills calefaction control of calefaction tube by solid state relay. above position operator software programs by delphi, and realizes pid parameter automatic timing and no - oversnooting temperature control. software has friendly interface, convenient operation, complete functions
前置數據採集模塊完成16路溫度信號的採集和通訊;速度測量模塊與速度控制模塊通過控制變頻器來調節迴流焊的傳輸速度;開關量輸出模塊通過固態繼電器對加熱管進行控制;上位機軟體採用delphi編程,實現了pid參數自整定以及無超調的溫度控制。The second, at the high frequency primary coil, when switch turn on with control signal ( the spwm pulse is modulated ), in the positive or negative semi - period of low frequency modulation signal, transformer coil with same direction voltage. the magnetic flux of transformer core will increase step by step. at the end, it leads to magnetic flux saturation
二、在高頻變壓器原邊,當開關管接收控制信號脈沖列(經調制的spwm波列)導通時,在低頻調制信號的正半周或負半周內,施加在變壓器繞組上的是同一方向的電壓,變壓器磁芯中的磁通可能將級進地逐漸增加,導致磁芯飽和,造成磁偏或單向磁化,導致低頻電信號放大失真或由於很大的磁化電流而無法正常工作。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。General technical requirements for railway signal dc neutral relays
鐵路信號直流無極繼電器通用技術條件This method can rapidly extract speed law from starting current of dc motor with fairly good precision, and thus the torque - speed characteristic can be acquired
並通過提取直流電機起動過程電流信號的瞬時頻率有效地研製了一套無轉矩轉速傳感器直流電機的快速測試系統。Ac tri - phase active electric energy display control instrument ; double screen digital display ; outline dimension 16080 mm ; no communication interface ; no transmit output ; tri - phase four - wire connection mode ; high limit alarm lower limit alarm ; switch power supply ; input voltage signal 0 100v ; input current signal 05a ; active power display 0120. 0 kw, active electric energy display 099999999999999 kwh. 1
交流三相有功電能顯示控制儀雙屏數字顯示外形尺寸16080無通訊介面無變送輸出三相四線制接線方式上限報警下限報警開關電源供電輸入電壓信號0 100v輸入電流信號0 5a有功功率顯示0 120 . 0kw ,有功電能顯示0 9999999999999kwh 。Ac tri - phase reactive electric energy display control instrument ; double screen digital display ; outline dimension 16080 mm ; no communication interface ; no transmit output ; tri - phase four - wire system ; high limit alarm lower limit alarm ; switch power supply ; input voltage signal 0380v ; input current signal 05a ; reactive power display 0114. 0kw active electric energy display 09999999999999kwh
交流三相無功電能顯示控制儀雙屏數字顯示外形尺寸16080 ;無通訊介面無變送輸出三相四線制上限報警下限報警開關電源供電輸入電壓信號0 380v輸入電流信號0 5a無功功率顯示0 114 . 0kw ;有功電能顯示0 9999999999999kwh 。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。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。After the analysis of power produce character of the typical three - phases unbalance load, the corresponding circuit is adopted. this main circuit is composed of the power filter series and tcr control circuit. secondly the theory of band - pass filter is analyzed in detail, and then a method of implementing butterworth band - pass filter is put forward
簡要分析了無功補償的基本原理和工作特點,通過對典型的三相不平衡負載工作特點的分析,主電路採用電力濾波器與晶閘管控制電抗器相接合的結構;對用於無功檢測的帶通濾波器進行了分析,設計了用於負載電壓、電流信號濾波的帶通濾波器,並採用運算放大器加以實現。It can separate display and control simultaneously for two - loop signals which can be different signal. input ports all have universal signal input, it can realize light switching between various input signal thermocouple, thermo - resistance, standard voltage current signals by making simple selection on instrument menu. such feature greatly improves its universality and reliability
採用最新無跳線技術,使輸入埠具備單通道和萬能信號輸入功能,只需通過儀表菜單的簡單選定,即可實現多種輸入信號各種熱電偶熱電阻標準電壓標準電流信號之間的輕松切換,提高了儀表的通用性和可靠性。1. wp - lehz - c600n ac power frequency cycle meter : single screen digital display, outline dimension 9648mm ; no communication interface ; no transmission output ; no alarm output ; linear power supply ; input voltage signal 220v ; display 45. 0055. 00
交流工頻周波表:單屏數字顯示;外形尺寸9648無通訊介面;無變送輸出;無報警輸出;線性電源供電輸入電壓信號220v顯示45 . 00 55 . 00 hz 。A data collection and control : high speed direct sampling and effective value calculation of ac voltages and currents, calculation of active power reactive power power factor, collection and transmission of states, select - check - execute of control output
交流電壓電流信號的高速實時采樣和有效值計算有功無功功率因數計算各交流量的2 15次諧波分量及諧波總量計算遙信量的採集及上送遙控返校及執行。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
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。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。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。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
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。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。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。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。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。分享友人