正弦量 的英文怎麼說
中文拼音 [zhēngxiánliáng]
正弦量
英文
simple harmonic quantity-
The symbolic electric circuit analysis using matlab
用相量法分析正弦穩態電路According to the theory of scalar diffraction, first, the equipollence of spatial distribution of the plane - wave interferential field and parallel projective sine grating is discussed
摘要根據標量衍射理論，首先討論了兩平面波干涉場的空間分佈與平行投影正弦光柵的等價性。Flatness sinewave relative to 1 khz, autorange
平坦度相對於1khz正弦波，自動量程4 the average power of a non sinusoidal periodic current is equal to the sum of powers of all its fourier series components
非正弦周期電流電路的平均功率等於其傅里葉級數展開式所有分量的功率之和。The experiments verify that with these new technologies, the amount of sinusoids can be greatly reduced and the tracking efficiency can be greatly improved
實驗證明，將這兩種方法與參數心理聲學模型相結合，可以有效地減少所需的正弦波數量，大大提高正弦波跟蹤的效率。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。Point in the number of times of a repetition in period, or each of cycle number. calculate the unit to hz hertz, such as the frequency is 1000 hzs 1 khz signal 1000 every second then contain the cycle of the sine wave
指在一個周期內的重復次數，或每秒的周波數。計量單位為hz hertz ，如頻率為1000hz 1khz的音頻信號每秒便有1000個正弦波的周波。Trial - use standard definitions for the measurement of electric power quantities under sinusoidal, nonsinusoidal, balanced, or unbalanced conditions
試驗用標準定義.在正弦曲線，非正弦曲線，平衡和非平衡條件下電力數量測量的試驗用標準定義On basis of the producing fact of kiu ming heavy machine ltd, the author get much fact material through inner research, and presents a imagine of new corrugated - web structure of overhead traveling crane. through enough compare and argumentation, this paper presents using sine curve as corrugated sheet of web
作者根據昆明重機股份有限公司的生產實際，深入調查研究，在掌握大量生產應用實際的資料基礎上，提出了橋式起重機的箱形主梁的新型波形腹板結構的設想，並在充分比較和論證的基礎上提出了以正弦曲線波形作為腹板的波形。During the temperature fields, the results indicate that the processing parameters such as the extrusion velocity, casting temperature, perform preheating temperature, die preheating temperature and so on are important for the temperature fields besides the dwell time. they are must be in concordance each other to the deforming zone is in the quasi - solid state, and the stable semi - solid extrusion is implemented. during the deforming fields, the hyperbolic sine thermo - rigid - viscoplastic fem model is selected according to the forming feature of the process, and the variations of the stress - strain fields are studied
在溫度場的模擬中，模擬結果表明，保壓時間是影響製件成形質量的關鍵因素之一，擠壓速度、液態金屬澆注溫度、預制體預熱溫度和模具預熱溫度等工藝參數對溫度場的影響也很大，需進行參數之間的協調，只有當變形區內部始終維持準固態時，才能實現穩定的液-固擠壓成形過程；在變形場的模擬中，根據液態浸滲擠壓的成形特徵，選用了雙曲正弦剛-粘塑性有限元計算模型，研究了變形過程中應力應變場的變化規律，研究了模角對變形和金屬流動的影響及變形力的變化過程和其影響因素。With different modeling methods and quantization techniques, the speech compression schemes discussed in this thesis include : the compression based on general matching pursuit sinusoidal modeling, the compression based on sinusoidal modeling with perceptual gradient, the compression based on dynamic dictionary matching pursuit, the compression scheme using classified dynamic dictionaries, and the integrated compression scheme that combines the sinusoidal modeling with perceptual gradient and the classified dynamic dictionaries
針對各種不同建模方法和參數量化技術，本文探討了基於普通匹配跟蹤正弦建模的壓縮編碼、感知梯度正弦建模壓縮編碼、基於動態字典匹配跟蹤的壓縮編碼、分類動態字典壓縮編碼，以及結合感知梯度正弦建模和分類動態字典的綜合編碼方案。There are five parts are as follows : in part one, the concept of switching function is introduced first to establish the nonlinear mathematical model of the induction motor variable frequency speed adjustment system which is fed by a sine pulse width modulated ( spwm ) inverter and takes the effect of the main magnetic circuit saturation into consideration, then the low frequency oscillation of the system is simulated according to the model. next, from the view point of energy conversion of the inverter - induction system, a criterion for the low frequency oscillation is proposed to determine whether the system is in low frequency oscillation which is judged by whether the interval of the negative current component of the inverter input current is more than 1 / fc ( fc is the carrier wave frequency of the inverter ) or not
首先引入開關函數概念，建立了正弦脈寬調制（ spwm ）逆變器供電異步電動機，考慮主磁路飽和時的變頻調速系統整體數學模型，模擬系統的低頻振蕩；其次從逆變器-異步電動機系統能量轉換角度出發，提出通過檢測逆變器輸入電流中負電流的間隔時間是否大於1 / f _ c （ f _ c為逆變器載波頻率）來判定系統是否出現低頻振蕩；最後的實驗結果驗證了系統低頻振蕩建模和判據的實用性和正確性。Decomposition of nonsinusoidal current in frequency domain and detection of its correlative components
非正弦電流的頻域分解和其相關分量的實時檢測A simple measuring method for effective value of non - sinusoidal waveform used in high frequency x - ray generator
線發生器非正弦電量有效值的簡易測量The method of both active power measuring and the analysis of the nonlinear measuring error in its power measurement circuit
電動系功率表測量非正弦單相有功功率的讀數推證Cs5460a adc based instrument for measurement of non - sinusoidal electric quantities
的非正弦波電參量的測量儀表設計與實現With the development of modern industry, the nonlinear loads of power system are greatly increased. they absorb the non - sine current waves from power network and result in voltage aberrance. voltage aberrance makes the power quality severely deteriorate, endangers the safe and economical running of power system and affects some users ’ s normal work
隨著現代工業的發展，電力系統中的非線性負荷大量增加，這些非線性負荷從電網吸收非正弦電流，導致電網電壓發生畸變，使電能質量嚴重惡化，危及電力系統安全和經濟運行，影響了用戶的正常工作。Quasi - sinusoidal quantity
準正弦量Three characteristics that discribe a sinusoidal signal are the frequency, amplitude, and initial angle
表示正弦量的三個要素為頻率、幅值（大小）和初相角。The circuits in which both the excited sources and the responses are all sinusoidal shapes are called sinusoidal alternating circuits
激勵和響應均為正弦量的電路稱為正弦交流電路。分享友人