dynamic frequency 中文意思是什麼
dynamic frequency
解釋
動態頻率-
A lot of engineering applications are carried out using our proposed method in this paper, such as thermal deformation measurement of a car lamp, analysis of the super low frequency harmonic vibration of a piezoelectric ceramic, dynamic mechanical behavior analysis of the ballistite material and so on
在前面所提出的理論基礎之上，本文對該方法在實際工程中的應用做出了大量的工作。本文利用時間序列法實現了汽車前燈配光鏡的熱變形檢測、壓電陶瓷片的超低頻振動分析以及火箭固體燃料的動態力學特性研究。 -
Due to existing signal processing technology ’ s shortage such aslow measurement, narrow measurement range precision and other poor performance, we introduced a high - precise signal processing technology : firstly, to get power spectrum with hanning windowed welch modified periodogram, search its peak value frequency ; secondly, to apply zooming analysis via goertzel algorithm ; at last, to get a highly precise doppler frequency with energy centrobaric rectifying algorithm 。 the simulating result indicated that this technology introduced could get accurate doppler frequency 。 depending on above discussed technology, we designed a signal processing scheme, and developed a signal processing system. the running result showed high performance, verified the feasibility and reliability of the highly precise signal processing technology introduced. in a word, the technology improved ldv ’ s performance such as measurement precision, measurement range, dynamic response time 。 and it will have a wide application foreground
針對存在的缺點，本文提出了一種應用於激光多普勒測速的高精度信號處理技術，即首先利用加hanning窗的welch修正周期圖演算法得到信號功率譜，搜索其譜峰值頻率，接著利用goertzel頻譜細化演算法對搜索的譜峰進行細化分析，再引入能量重心頻譜校正演算法對細化后的譜峰進行校正分析，從而將離散頻譜分析演算法、頻譜細化演算法和頻譜校正演算法三者有機結合起來，充分發揮各自的優點:通過加hanning窗的welch修正周期圖演算法快速得到功率譜及峰值頻率，通過goertzel演算法獲得分析頻帶的高解析度頻譜，然後通過能量重心校正演算法對細化后的頻譜進行高精度校正，這樣不僅保證了演算法的高效性，而且大大提高了分析的精度。 -
They were technology paradigm shifting from analog signals to digital signals in xihu electronic co. and the shifting from dynamic frequency to fixed frequency of air condition manufacturing in haixin co. at last, by the combination of efa ( exploratory factor analysis ) and cfa ( confirmative factor analysis ) method we proposed and approved the interaction among learning, unlearning and innovationess
通過研究西湖電子從模擬技術向數字技術轉變一以技術推動為主導的範式轉變和海信集團以市場拉動為主導的範式轉變，生產變頻空調的案例說明組織在技術範式轉變時期的組織學習模式。 -
We acquired the system ' s dynamic response when the satellite attitude was adjusted and the mode of the antenna. then modal analysis and dynamic analysis have been done to the satellite - antenna system by using the finite element analysis ( fea ) software of ansys. through the analysis we got the system ' s connatural characteristic, the amplitude - frequency characteristic of harmonic response, the power spectrum density of random vibration response, the maximal amplitude and resuming time of impact response
其次藉助ansys有限元分析軟體，對系統進行了模態分析和動力學響應分析，獲得了不同天線結構參數下的衛星?天線系統的固有特性，簡諧響應的幅頻特性，隨機振動響應的功率譜密度，以及沖擊響應的最大幅值和恢復時間等。 -
The control system with such method is simulated and a inverter is made for speed control of single - phase motor. the method presented in this paper offers such advantages as easy implementation, large range of frequency and rapid dynamic response. furthermore, using this method, the single - phase motor with symmetrical or dissymmetrical windings can operate symmetrically
本文提出的變頻調速控制方法具有系統設計簡單易實現，調速范圍大，動態響應快等特點，而且在電機繞組對稱和不對稱兩種情況下均可實現變頻調速的對稱運行。 -
In the next place, by studying the change of the resonant frequency of the whole system, this paper designs the circuit to track the resonant frequency of the system by cd4046 mainly. at the same time, in order to improve the efficiency and get better dynamic capability of the converter, we choose pll and fuzzy control after comparing the pll circuit, fuzzy circuit and pll ? fuzzy control circuit. in the end, this paper brings forward the control blue print to realize the drive control circuit of the high frequency converter, using the dsp chip as the key part to realize four routes of pwm drive pulses with dead band of the control system
其次，通過對整個系統諧振頻率變化的分析和研究，設計了以鎖相環cd4046為核心的鎖相環控制電路，同時，在綜合比較鎖相環控制、模糊控制以及模糊控制和鎖相環復合控制三種控制演算法的基礎上，進行了系統模擬，得出採用復合控制可使跟蹤電路既具有鎖相環路較好的穩態性能，又擁有模糊控制較好的動態性能，系統魯棒性能好，同時也提高了逆變器的效率。 -
Secondly, this paper illustrated the nonlinear phase dynamic theory of the aia array and the application of it to power - combining and beam - scaning technique. according to these theories, the coupling parameter of nearest neighbors was found by experiment, then the two - element and three - element aia array were designed, and the result of measurement was in agree with that of the nonlinear phase dynamic theory, and the beam - scaning of two - element array was realized by tuning the free oscillation frequency of the elements
其次，本文討論了有源集成天線陣列的非線性相位動態理論以及它在功率合成和波束掃描方面的應用，包括同步工作條件、穩定條件和相位動態方程等，通過實驗確定了陣列中相鄰單元間耦合參數，並將之運用於有源集成天線二元陣和三元陣的設計，實驗結果與理論結果吻合較好。 -
Dynamic frequency selection dynamic channel selection dfs dcs
動態頻率選擇動態通道選擇 -
The drive principle of the spherical manipulator based on friction is studied, and simplified to be a two - mass oscillator model, though which the dynamics characters, optimization, frequency respond, and the control strategy is studied. firstly, based on the former experiment, the investigation is on the dynamic characters of the friction drive principle
論文將對球基微操器的摩擦力驅動原理做深入分析，將其簡化為二元摩擦振子模型，通過對二元摩擦振子性質的討論，對應用摩擦力驅動原理的球基微操作器的運動狀態，動力學特徵，優化設計，頻響問題以及控制方式進行深入分析。 -
Analyzing the dynamic character under no power. it includes inhere frequency, shaking model. through which. i can learn the character of the bridge crane
、分析橋機的在沒有外載激勵的情況下的動態特性這主要包括：固有頻率、振型。 -
Finally, the paper studied the dynamic characteristics of 2. 6x13m mill system. mill system of single - pinion drives is lighten, so the design and run of mill system, bestir frequency must avoid inhesion
邊緣傳動磨機系統是一個模態偶合較緊的系統，因此，在磨機系統的設計、運行中，應注意使激勵頻率避開系統的固有頻率，以免發生設備的早期失效。 -
Dynamic measurement technology of foundation pile with reflect wave method and frequency - initial velocity method and its application
初速度法基樁動測技術及其應用 -
The dispersion of dynamic frequency in complicated system is one of reasons which lead the unsatisfactory performance of under frequency load shedding device
而復雜系統動態頻率的時空分散性正是導致低頻減載裝置動作不令人滿意的原因之一。 -
The horizontal axis of the robot is equipped with a dynamic, frequency controlled motor and all components of the control system are directly mounted on the robot structure
橫軸配備了變頻控制的動力馬達，所有控制系統部件都裝在機械手上。 -
Dynamic frequency scanning
動態頻率掃描 -
The relationship between the body dynamic frequency bandwidth and the precision of the dynamic surveying with incomplete inertial sensors is clarified which can be a guideline for practical inertial system designs
通過頻域分析，闡明了載體姿態運動頻帶寬度與動態測量精度的關系，對實際工程中慣性系統設計具有重要的指導作用。 -
Dynamic frequency allocation
動態頻率分配 -
Analysis of dynamic frequency process of power system is basis of system performance research 、 design of under frequency load - shedding scheme and evaluation of different measure of voltage regulation and frequency regulation. with development of power system, there are more and more factors that affect dynamic frequency characteristics which make it more and more complicated. the method which use single - generator - to - load model to analyse frequency dynamics can not suit for actual system
隨著電力系統的發展，影響動態頻率特性的因素越來越多，動態頻率特性日趨復雜，用傳統的單機模型分析系統動態頻率特性的方法已不能適應實際系統的需要，迫切需要對現代電力系統中影響動態頻率特性的因素進行分析。 -
The factors which affect load frequency characteristics are dissected in this thesis. frequency characteristics of constant revolution controlled load 、 synchronous motor dragged load 、 asynchronous motor dragged load and their effect to dynamic frequency characteristics are analysed. conclusion is reached as : increasing the efficiency of asynchronous motor can recede its slip and improve dynamic frequency characteristics
論文深入分析了影響負荷頻率特性的因素，分析了恆轉速控制工具機、同步機拖動工具機以及異步機拖動工具機的頻率特性和它們分別對系統動態頻率過程的影響，得出了恆轉速控制工具機對系統動態頻率不利；提高異步機的效率可降低其轉差率，從而改善系統動態頻率特性的結論。 -
Main factors are pointed out. in simple power system, the factors are : active power shortage 、 moment of inertia 、 load frequency coefficient ; in the loose complicated power system, the factors which make dynamic frequency dispersive are : the difference of moment of inertia 、 load frequency coefficient 、 power shortage and electric distance to hinge station of each area
指出影響簡單系統頻率特性的主要因素有：系統的功率缺額、轉動慣量以及負荷的頻率調節效應系數；使聯系鬆散的復雜系統動態頻率呈分散性的因素是：各區域的轉動慣量不同、負荷調節效應系數不同、功率缺額不同、與樞紐站之間的電氣距離不同等。
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