frequency harmonics造句
例句與造句
- Audio frequency harmonic distortion
聲頻諧波失真 - A methane gas sensor with optic fiber based on frequency harmonic detection technique
一種基于諧波檢測技術(shù)的光纖甲烷氣體傳感器 - Technical analysis of the wrong operation in substation because of different frequency harmonic
變電所由于分頻諧振引起誤動作的技術(shù)分析 - Any subtle change of capacitance can be measured through the method of modulation on high - frequency harmonic oscillation return circuit
電容的微小變化可通過對高頻諧振回路調(diào)制的方法進行測量。 - However , smps operate at high switching frequencies , and the associated transient pulses are full of high frequency harmonics that may cause electromagnetic interference ( emi )
然而，由于開關(guān)電源工作在高頻狀態(tài)，其產(chǎn)生的瞬態(tài)脈沖包含有能夠發(fā)射電磁干擾( emi )的的高頻諧波。 - It's difficult to find frequency harmonics in a sentence. 用frequency harmonics造句挺難的
- This improvement originates from the temporal modulations introduced by fixational eye movements in the visual input to the retina , which emphasize the high spatial frequency harmonics of the stimulus
這種改善作用來自于凝視中視覺輸入視網(wǎng)膜時眼球運用所引起的暫時調(diào)節(jié)作用，其著重在高空間頻率刺激。 - Furthermore , with the fourier series technique , the disturbance is discomposed into predominant mode and high frequency harmonics , and the nonlinear stability of the nonparallel boundary layer is studied
采用fourier級數(shù)的方法把擾動波分解為基本模態(tài)和高頻諧波模態(tài),導出非平行非線性拋物化穩(wěn)定性方程。 - Basing on deeply analyzing theory of instantaneous reactive power , detecting method for high frequency harmonic current is presented and the diagram of actualization for digital control system is put forward
介紹了有源電力濾波器的結(jié)構(gòu)和工作原理，在深入分析瞬時無功功率理論的基礎(chǔ)上設(shè)計了諧波電流的檢測方案。 - With the fourier series technique , the disturbance is discomposed into predominant mode and high frequency harmonics . the nonlinear stability of three - dimensional disturbances for the blasius boundary layers is studied
借助fourier級數(shù)的方法將擾動波分解為基本模態(tài)和高頻模態(tài),研究了三維擾動的非線性邊界層穩(wěn)定性問題。 - High voltage shunt capacitor installation is comp - rised of capacitor cabinets or steel racks capacitor , special fuses for capacitor overload protection , capaci - tor discharge device , air - cored reactor which is applied to restrain surge current and high frequency harmonic , zno arrester without gaps for overvoltage - limiting and high voltage vacuum switch etc . capacitor cabinet is
高壓并聯(lián)電容器成套裝置主要由電容器柜或鋼架電容器電容器過負荷保護專用熔斷器放電裝置專用放電線圈或電壓互感器，抑制涌流限制高次諧波的空芯電抗器和限制過電壓的無間隙氧化鋅避雷器及高壓真空開關(guān) - Abstract : since piezoelectric resonant filter can not effectively prohibit higher - frequency harmonic , the mechanism of this problem has been discussed by means of a specific example which shows that there exists lots of undesirable resonant frequencies of piezoelectric that would let pass undesirable signals . to solve this problem ， an ameliorated electrostatic mechanical resonant filter is proposed and a specific case is demonstrated . the example of electrostatic resonant micro - bridge asserts that by adjusting the gap of exciting capacitance the higher - frequency vibrating model of micro - bridge cannot be excited based on orthogonal character of intrinsic vibrating shape of micro - bridge , so that this kind of resonant filter can effectively filter out undesirable higher - frequency harmonic
文摘:提出壓電諧振濾波器不能很好地濾除高頻諧波的問題,結(jié)合一個具體例子理論推導了壓電諧振濾波器存在許多干擾諧振頻率,從而不能有效濾除一些特定頻率的干擾信號.為了解決這個問題,提出一種改進型的靜電激勵諧振濾波器.為了說明其可行性,具體分析了改進型雙端固支微梁靜電激勵諧振濾波器,理論推導證實基于雙端固支微梁的各階振型正交的原理,通過適當調(diào)整激振電容的間距,雙端固支微梁的高階振動模態(tài)受到很好的抑制,因此這種諧振濾波器可以有效阻止濾波器中心頻率的高頻諧波的通過 - Chaotic switching modulations introduce low - frequency harmonic spectrum of output voltage as random switching modulation . in some case , low - frequency noise ripple offset the effect chaotic switching modulations reduce the level of emi . it indicates that the ccfmfd integrates the advantages of spreading harmonic power at the multiples of the switching frequency and not introducing significant noise ripple at low - frequency range . among all chaotic switching modulations , the ccfmfd is considered as the best choice in applying to dc / dc converter
與隨機調(diào)制模式相同，混沌開關(guān)調(diào)制模式也引入輸出低頻噪聲紋波，有些情況下低頻噪聲紋波可能抵消混沌開關(guān)調(diào)制降低emi水平的效果。分析表明： ccfmfd模式具有較好的降低emi水平和引入較小低頻紋波的優(yōu)點，可以作為混沌調(diào)制模式較佳的選擇。 - Secondly , according to the character of this kind of harmonic , the solutions of power filter are deeply analyzed and an optimized topology for series connected hybrid power filter is obtained . by pwm technique , midfrequency transformer and the principle of the magnetomotive force ( mmf ) compensation , the problem to the transfer of the low - frequency harmonic power compensatory signal in the series apf is solved , in technique
其次，針對acem系統(tǒng)特有的“電源諧波”特性，深入分析了濾波器方案，得到了一種適用于acem系統(tǒng)諧波抑制的串聯(lián)混合型有源電力濾波器優(yōu)化拓撲結(jié)構(gòu)，并采用了pwm調(diào)制技術(shù)、中頻注入變壓器和磁勢補償原理有效地解決了串聯(lián)apf中低頻諧波功率補償信號傳輸?shù)碾y題。 - Since piezoelectric resonant filter can not effectively prohibit higher - frequency harmonic , the mechanism of this problem has been discussed by means of a specific example which shows that there exists lots of undesirable resonant frequencies of piezoelectric that would let pass undesirable signals . to solve this problem ， an ameliorated electrostatic mechanical resonant filter is proposed and a specific case is demonstrated . the example of electrostatic resonant micro - bridge asserts that by adjusting the gap of exciting capacitance the higher - frequency vibrating model of micro - bridge cannot be excited based on orthogonal character of intrinsic vibrating shape of micro - bridge , so that this kind of resonant filter can effectively filter out undesirable higher - frequency harmonic
提出壓電諧振濾波器不能很好地濾除高頻諧波的問題,結(jié)合一個具體例子理論推導了壓電諧振濾波器存在許多干擾諧振頻率,從而不能有效濾除一些特定頻率的干擾信號.為了解決這個問題,提出一種改進型的靜電激勵諧振濾波器.為了說明其可行性,具體分析了改進型雙端固支微梁靜電激勵諧振濾波器,理論推導證實基于雙端固支微梁的各階振型正交的原理,通過適當調(diào)整激振電容的間距,雙端固支微梁的高階振動模態(tài)受到很好的抑制,因此這種諧振濾波器可以有效阻止濾波器中心頻率的高頻諧波的通過 - 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(chǔ)之上，本文對該方法在實際工程中的應(yīng)用做出了大量的工作。本文利用時間序列法實現(xiàn)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(tài)力學特性研究。