聲振幅 的英文怎麼說

中文拼音 [shēngzhèn]
聲振幅 英文
sound vibration intensity
  • : 動詞1. (搖動; 揮動) shake; flap; wield 2. (奮起) brace up; rise with force and spirit
  • : Ⅰ名詞1. (布帛、呢絨等的寬度) width of cloth 2. (泛指寬度) width; size 3. (姓氏) a surname Ⅱ量詞(用於布帛、呢絨、圖畫等)
  1. First, it was taken that a discuss about the effects of geometry parameters of each piezocrystal on direction parameters ( main lobe width, side lobe amplitude, elimination of grating lobes ), amplitude of ultrasonic pressure, element viberation pattern, mutual radiation among elements, efficient test regions, ability to keep accurate and near - field distance and so on. based on the direction of ultrasonic field in ulpa deduced by ourselves. in addition, on the base of integrating all kinds of factors, it was put forward that the principle and method for optimized design of geometry parameters of piezocrystals in ulpa transducer, and its design programme and interface were compiled

    首先在推導超相控線陣換能器場的指向性的基礎上,就各個晶片幾何參數對指向性指標(主瓣寬度、旁瓣度、消除柵瓣) 、值、陣元動模式、陣元間互輻射、有效檢測區域、精確控制能力、近場長度等方面的影響進行了論述,並在綜合各方面影響的基礎上,提出了晶片幾何參數優化設計的原則和方法,編寫了設計程序和界面。
  2. Abstract : experiments were made on a ultrasonic machining tool with work - piece adhered to ultrasonic transducer head, to machine micro - holes on hard and brittle materials such as soda glass and si, to study the effects of tool materials , work - piece materials , amplitude , machining load , slurry concentration , tool length and the size of work - piece on machining rate and wear ratio. in this experiment, the micro - tool was made through wedg

    文摘:通過以wedg放電加工手段製作微細超加工用工具,在採用工件加方式的微細超加工機上對碳酸玻璃、半導體硅等硬脆材料試件進行微孔加工的實驗,來探討在某一特定加工條件下工具材料、工件材料、工件的、加工靜載荷、磨料懸浮液濃度、工具長度及工件尺寸等重要因素對加工速度、工具損耗率的影響,為微細超加工技術的實用化提供參考依據。
  3. The factors which affect the spl : the square measure of diaphragm, the amplitude of vibration, magnetic field intensity, power, impedance, resonant chamber, the pattern and the thickness of diaphragm, and the holes

    音量會影響音大小的因素:膜片面積,,磁場強度,功率,阻抗,音腔大小,膜片花紋/厚度,開孔
  4. The waves are sinusoidal in nature, and they have an amplitude and a frequency

    波實質上是正弦曲線,它有和頻率。
  5. The tone be decided by voice wave for for wave decision, volume from voice wave for of flapping the decision of a, tone color from voice wave decision, but is from voice wave form

    音調由波的頻譜所決定,音量由波的所決定,音色由波的頻譜所決定,而音品是由波的波形所決定。
  6. The clues and techniques to improve the resolution of data processing are 1 ) removing the affection of near surface factors on data acquisition, including static correction and noise eliminating technique etc, 2 ) broadening the frequency band of pre - stack seismic data, including amplitude compensation and pre - stack deconvolution etc, 3 ) improving s / n ratio of high frequency and weak reflection signals through multiple coverage with high precision velocity analysis, residual static correction and high - order nmo, raising " dead line of high frequency reflection ", and 4 ) identifying post stack effective reflection frequency band, enhancing dominant frequency and so on

    主要包括:消除近地表因素對資料採集的影響,包括靜校正和噪音壓制技術等;疊前拓寬地震資料領帶,包括補償和疊前反褶積技術等;藉助高精度速度分析、剩餘靜校正和高次項nmo技術,通過多次覆蓋疊加,消除資料中隨機噪干擾、提高資料信噪比,尤其是高頻端反射信息的信噪比,改善高頻反射和弱反射信號信噪比,提高「高頻反射死亡線」 ;疊後有限反射頗帶識別、抬高優勢頻率等。
  7. The resolution depends upon the size of the word used to represent the amplitude of a sampling sound and is determined by the resolution of the adc and dac

    解析度取決于表示采樣的字組大小,並由模數轉換器和數模轉換器的解析度所決定。
  8. Comprehensively discuss the issues in application, adaptive condition and performance, propose a fast arithmetic of forward modeling and depth migration in common shot gathers with one - way acoustic wave equation based on vrselrf, and verify the arithmetic by numerical simulation. concisely discuss the cause of the creation of evanescence and the problem of lateral amplitude discontinuity result from it. fourthly, use the reflectivity model, computed to describe the fracture model, with the formula of computation reflectivity based on elastic - acoustic approximation, and the wavelet model computed by the method, wavelet creation with fourier transform, we proposed, in conjunction with vrselrf wavefield extrapolation operator

    第三,將頻率波數域穩定的變參考慢度rytov近似廣義屏波場延拓運算元( vrselrf )應用於疊前與疊后正演模擬、疊前與疊后深度偏移,對演算法應用中應注意的問題、適用范圍、性能等作了較為全面的論述;提出了基於vrselrf的單程波方程共炮記錄正演模擬和深度偏移快速演算法,並通過數值模擬試驗對演算法進行了驗證;簡要地討論了倏逝波的產生原因及其帶來的橫向不連續性問題。
  9. The conclusions are as follows : the ultrasonic intensity is proportion to the laser intensity ; the ultrasonic induced by a laser line source has much more advantages than by a laser point source, such as stronger energy, higher snr, more directivity and shape ; the intensity of cfpi ' s output signal is linear with ultrasonic vibration velocity, and is effected by incidence angle and scattered angle ; snr will increase by reducing cfpi ' s bandwidth, reducing incidence angle, increasing cavity ' s length and reflectivity

    在分析點光源激勵表面波機理的基礎上,求出了線光源激勵的超動的位移表達式,發現線光源激勵的近場區表面波具有波形好,信噪比高,指向性好,度強等特點。通過理論推導,得出共焦fabry - perot干涉儀的輸出光強除了與樣品表面的動速度成正比,並與入射角和散射角有關;適當減小cfpi的帶寬,增加腔長,增大鏡面反射率,或者減小檢測入射角都可以提高系統的信噪比。
  10. To study the acoustic unsteady combustion of srm, built the acoustic model of chamber. deduced the little amplitude sound wave 3d equation, used the finite volume discrete method to simulate. got the vibration model of three kinds of chamber

    為研究固體火箭發動機不穩定燃燒特性,建立了燃燒室內學特性分析的物理數學模型,推導了小波三維波動方程,採用有限體積離散方法進行模擬,得到圓柱型、四片翼柱彤和五片翼柱型藥柱三種燃燒室形狀動基本模態
  11. This paper begins with the calculation of the stator ' s resonance frequency, deals with the design and manufacture of motor, and puts forward dual nut structure of traveling wave revolving ultrasonic motor, and presents the analysis of the contract between rotor and stator in the manufacturing process, relation between the amplitude of voltage - ceremic chip and drive sources. the conclusion is that amplitude is affected by deviation of resonance frequency

    同時分析了電動機的加工工藝,對超波電動機製造過程中功率與接觸角和與驅動電源的關系進行了討論,得到了接觸角與輸出功率的關系曲線,以及超波電動機的主要受電壓和激頻率偏離定子環第2n階諧頻率的偏離量確定。
  12. It is quite important that the stability of signal ’ s amplitude which is modulated by the acoustooptic modulator

    光調制器的輸入調制信號的穩定性就顯得尤為重要。
  13. Reseach of measuring sound speed by amplitude extreme method

    極值法測速的研究
  14. In order to analyze the rotation noise further, a new method for measuring the amplitude and phase of each harmonic component of periodic signal mixtures is established based on the morlet transform and fourier transform in theory, which will provide scientific warranty for reducing noise of disk mill

    為了進一步分析爪式粉碎機的旋轉噪,理論上利用morlet小波變換結合fourier變換對旋轉噪各次諧波成分的和初相位的提取,作了初步探討。
  15. When the crests of the sound waves match up, their result is a louder sound, while if opposite crests match up, they cancel each other out

    波波峰碰上另一波的波峰時,其結果是更大的音(譯注:增大了,應該是疊加) ;而如果波峰碰上波谷,就抵消掉(譯注:一樣的話) 。
  16. Thus the displacement amplitude of even the loudest sound is extremely small.

    這樣,即使是最強音的位移,也還是非常小的。
  17. The mechanical impedance analyzing method utilized, the mathematical formula for the input impedance and transformer ratio of ultrasonic horn are built up, some vibration performance of ultrasonic horns are discussed under different load impedance, the relationship and applicational conditions between the transformer ratio of ultrasonic horn and the radiational impedance are analyzed

    採用機械阻抗分析方法,建立了超器的輸入阻抗和變比的數學表達式,討論了不同負載阻抗下超器的動性能,分析了超器的變比與換能器輻射阻抗之間的關系及應用條件。
  18. First please make sure the useful signal has very good snr before you input it to amplifiers chain, then you can calculate how much gain and nf you need to get the targeted signal amplitude and noise level, based on this you can choose the right components to design amplifiers chain

    后才將其輸入放大器鏈,接著計算獲得目標信號和噪水平所需的增益與nf的大小,最後根據這些數據選擇合適的器件設計放大器鏈路。
  19. Standing wave ultrasonic motors have many outstanding features for simple drive and control circuit, stationary speed of rotation, smaller undulation, etc. on the basis of referring and analyzing a large quantity of literatures, the following work has been carried out. one exponential form transducer with rectangle cross - section are designed, which are presented in the dissertation, this kind of transducer fit output great power and make ultrasonic motor gain large amplitude effectively

    本文在閱讀和分析了大量國內外有關參考文獻的基礎上,做了以下研究工作:設計了一種矩形截面指數形壓電超換能器,這種換能器適合高強大功率超波的應用,能有效的為電機提供大動。
  20. Abstract : frequency automatic tracking and amplitude stabilizing are two important characteristics of ultrasonic machining power

    文摘:頻率跟蹤和恆定控制是超加工電源兩個重要的特性。
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