first harmonics 中文意思是什麼
first harmonics
解釋
基波-
A building of high, the breadth, long comparison is very important. house for combination in an ideal of big set, reruns hour then contain the best frequency to respond to the width. frequency response range in other words, the combination can broadcast tallest to can also fully develop to the lowest frequency, and the equilibrium degree is as well high, and halt a circumstance is very tiny. the first glint wave primary reflection mutual interference for with wave secondary reflection of many glints the degree is not to result in confusion. combination that fundermental the diapason wave harmonics is again perfect
大套組合在一間理想的房子里，重播時便有最佳的頻率響應寬度frequency response range 。換句話說，組合所能播放的最高至最低頻率也可以盡情發揮，平衡度亦高，駐波情況極微。第一反射音波primary reflection和多次反射音波secondary reflection的互相干擾情度不至造成混亂。 -
The way of taking one nth out of capacitor ' s the first harmonic capacitive reactance as its nth harmonic impedance is verified whit the data from tang7c. according to the approximately estimating method, the first harmonic impedance of 220kv system is calculated. on the basis of the models, this paper gives the harmonic equivalent circuit of substation and gives the b ( n ) function of the harmonic time n. when the capacitors has different combination, b ( n ) ' s value will also change, with the inputting local measurement data, the paper studies the series and parallel resonance at the substation, and deduces that the reason the capacitor ' s fuse of tang6c is frequently interrupted is that its capacitor current contains a large number of 5th harmonics, and that the reason the discharging pt of tang7c capacitor being exploded is also that the 7th and 9th harmonic currents are amplified
據此，對該站進行了串聯諧振分析和並聯諧振分析，並結合測試數據和有關變電站的運行記錄，指出了導致該站電容器湯6c頻繁燒保險的主要原因是5次諧波電流含量偏高，引起湯7c放電pt爆炸也是因為7次和9次諧波電流被放大。針對這些導致湯陰變電站補償電容器故障的原因，提出了相應的諧波治理措施，包括針對湯6c電容器5次諧波電流含量偏高的原因，提出了停運湯6c電容器或者通過把湯sc電容器的部分容量併入湯6c電容器（湯sc其餘部分停運）以增加湯6c諧波承受能力的措施;針對# 2變低壓側7次和9次諧波電流被放大的現象，提出了在湯7c電容器上加裝一定百分比的串聯電抗器的措施。 -
First, the harmonic analysis method based on fft is discussed, and some practical issues in the application of fft are investigated. the factors which affect the calculation precision of harmonics, such as sampling and weighting of window function, are analyzed, and then the instructive conclusions for designing voltage monitor are obtained
首先闡述了基於fft的諧波分析方法，對fft實際應用中的問題進行了研究，通過實際算例探討了采樣方法、窗函數加權等影響諧波計算精度的因素，得到了對電壓質量監測儀的設計具有指導意義的結論。 -
It was concluded that the first sixteen harmonics of the fourier descriptor were enough to represent the primary shape of pear, and the shape identification accuracy could reach 90 % by applying the fourier descriptor in combination with artificial neural network
研究發現該傅立葉描述子的前16個諧波的變化特性足以代表梨體的主要形狀，採用傅立葉描述子與人工神經網路相結合的方法進行果形識別的精確率可達90 % 。 -
The basic way to accomplish our system is : first connect the midi keyboard or electronic organ with computer ; when the learners play chords according to the given title, system will receive the midi message all at once which should be recognized and turned into harmony signal, and then give a proper feedback or evaluation to students " performance in accordance with the basic harmonics principles
系統實現的基本方法是：將midi鍵盤和計算機連接，在學生用midi鍵盤或電子琴彈奏系統給出的和弦題目時，系統將實時接收學生彈奏中傳來的midi信號並對它進行識別成為和弦信號，運用和聲基礎規范的理論對該信號進行分析和評判，針對學生和教師的不同需求將評判信息記錄或給予相應的反饋和幫助。 -
In this paper, some theories about intelligent instrument, dsp ( digital signal processing ) technology and the method of measure the electric power under the influences of harmonics is first of all described. and then it focuses on discussing the design and development of hardware and software
論文首先對本次設計所依據的智能儀器、 dsp技術以及高次諧波影響下的電壓、電流有效值及其他電參數測量原理進行了理論闡述，然後著重從硬體、軟體兩個部分論述了整個儀表系統的設計與實現。 -
The main works in this paper are as follows : first ， the preprocessing of ecg signal - filtering is carried on. the interference includes 50hz and its higher harmonics, muscle artifact and baseline wander and so on
論文的主要研究工作：一、研究了原始心電信號的濾波方法，提出了濾除各種干擾的數字濾波器的設計方法，包括50hz及其諧波、肌電干擾和基線漂移等。
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