acoustic measurement 中文意思是什麼

acoustic measurement 解釋
聲學測量
  • acoustic : adj. 1. 聽覺的；聲學的。2. 助聽的；傳音的。3. 原聲的，不經過電子設備傳聲的。adv. -tically 在聽覺上；在聲學上。
  • measurement : n. 1. 測量，計量，量度。2. 份量，尺寸，大小，寬度，厚度，深度（等）。3. 測量法。 measurement goods （按體積、容積計算的）體積貨物。
  1. Acoustic absorptivity measurement

    吸聲測量
  2. Instruments for the measurement of aural acoustic impedance admittance

    聽覺聲阻聽覺聲導納的測量儀器
  3. Hydrometry - measurement of discharge by the ultrasonic acoustic method

    水文測量.用超聲
  4. Surface transverse wave has the 1. 6 high frequency than rayleigh type surface acoustic wave ( using the same technology the frequency of devices of stw has about 1. 6 high frequency than rayleigh type surface acoustic wave ). the paper introduces the theory, design parament, technology and result expeiment of surface acoustic wave ( includes rayleigh surface acoustic wave and surface transverse wave, simple stw ) with low insertion loss, high q and researches the high frequency, low phase noise oscillator with 1ghz stw resonator as frequency element. and describes measurement method and finally experimantal result of the low phase noise surface acoustic wave oscillator

    本文研究了以低損耗、高q值聲表面波（其中包括聲表面瑞利波- - rayleighsurfaceacousticwave ，和聲表面橫波等）諧振器的工作原理、設計參數、製作工藝及其實驗結果，並且研究了以1ghzstw諧振器為頻控元件的高頻率、低相位噪聲聲表面波振蕩器，以及低相位噪聲聲表面波振蕩器的測試方法和最終的測試結果。
  5. This paper summarized several main research methods on this topic in our country, including " the determinant of laser - induced - damage of thin film by the scan of transmission and reflectance method ", " study of the phenomena on laser - induced thin film damage by photo - acoustic method " and " the measurement of damage threshold on optical thin film by diffusion method ", etc

    本文總結了目前國內幾種主要的研究方法，包括用透射反射掃描法檢測光學薄膜的激光損傷，用光聲法測定光學薄膜的破壞閾值，以及用散射法來測量光學薄膜的損傷閾值等。
  6. Abstract : a research on theory and practice is conducted on the acoustic methods of discharge measurement in low head hydropower plant. taken hydraulic efficiency experiment in certain hydropower plant as examples, the general methods about how to locate the discharge measurement plane, install transducers and choose the integration methods are put forward. an improvement method is proposed finally

    文摘:從理論上和實踐上，對低水頭電站超聲波測流進行了較為詳細的研究，並以某水電站為例，對測流斷面定位、聲路布置和面積積分給出了一般方法
  7. Calibration of bi - hydrophone used in acoustic intensity measurement system

    聲強測量系統用雙水聽器的校準方法研究
  8. Measurement of marine sediment and modeling acoustic wave with a finite - difference method

    海底沉積物聲波現場測試和有限差分數值模擬研究
  9. Measurement methods of a - chain and b - chain electro - acoustic frequency response of motion - picture control rooms, review rooms and indoor theatres

    電影錄音控制室鑒定放映室及室內影院a環b環電聲頻率響應特性測量方法
  10. Acoustic parameters measurement of viscoelastic material in median and high frequency

    中高頻段下的粘彈性材料聲學參數測量
  11. The measurement position and background noise subtraction which in the boundaries noise measurement of industrial enterprise and factory have been analyzed. the solutions to the sensitive distance from acoustic source and setting of monitoring sites, noise, the external serious influence were proposed

    在工業企業廠界噪聲測量中經常遇到的問題主要有監測點位布設和背景噪聲扣除兩類，並對敏感點距聲源距離與布點監測、背景噪聲的測量和受外來聲源嚴重影響時如何測量廠界噪聲等問題提出了解決辦法。
  12. Acoustics - in situ characterization of the acoustic qualities of road surfaces - pass by acoustic measurement - part 2 : controlled pass - by method

    聲學.道路表面音質的現場表徵法.旁路聲學測量.第2部分:受控的旁路法
  13. Acoustics and vibration - laboratory measurement of vibro - acoustic transfer properties of resilient elements - indirect method for determination of the dynamic stiffness of resilient supports for translatory motion

    聲學和振動.彈性元件的振動-聲傳輸特性的實驗室測量.平移動用彈性支架的動態剛性的間接測定方法
  14. Code for measurement of sound - absorbing coefficient and specific acoustic inpedance of standing - wave

    駐波管法吸聲系數與聲阻抗率測量規范
  15. Then analytical measurements of the noise were carried out on both of the turbines by means of modern acoustic apparatus and a conclusion has been found that the noise of the concentrated wind energy turbine is lower than the one of the ordinary wind energy turbine and the root of the trouble to cause noise chiefly originates from the turbine blade. besides, the result of analytical measurement also reveals that the power output both of the wind energy turbines will increase with the increase of the wind speed and unfortunately does the noise too. in order to lower the noise, a measures of noise reduction have been advanced that an active method is to develop a wind energy turbine run at a lower rating of wind speed while the passive method is to adopt a board drilled tiny holes, having established a sound technological basis for the development of a kind of wind energy turbine of low noise and high level in the world

    主要對濃縮風能型風力發電機在正常運轉時，噪聲產生的機理進行了理論分析研究，並與普通型風力發電機的噪聲進行了對比實驗分析；利用現代聲學測試手段對兩類機型進行測試與分析，得出濃縮風能型風力發電機產生噪聲低於普通型風力發電機和葉輪是風力發電機產生噪聲的主要部件的結論；通過對兩類機型的噪聲、輸出功率的測試，得出隨著風速的增加，兩類風力發電機的輸出功率在增加，產生的噪聲也在增加的結論；提出了進一步降低濃縮風能型風力發電機噪聲的措施，從主動降噪方面，研製低額定轉速的發電機；從被動降噪方面，採用微孔穿板的降噪結構；為研究開發一種國際上低噪聲、高水平的風力發電機打下了良好的技術基礎。
  16. Underwater acoustic measurement

    水聲測量
  17. By analyzing and processing the underwater sound signals received on the array, we can get the parameters of ocean environment. compared with traditional methods of direct point measurement, ocean acoustic tomography has obvious advantages : much simpler and more effective, and it can continuously monitor ocean environment in a large area for a long time

    海洋聲層析技術通過分析處理水聲接收基陣接收到的海洋通道中的水聲信號來反演海洋環境參數，這種方法方便、高效並且可以進行長時間的大范圍連續監測，與傳統的直接測量的方法相比有明顯的優勢。
  18. A three - dimensional - acoustic doppler velocimeter is used to measure the velocity components of the flow field in all three coordinate directions for different discharge and measurement site. the influence of measurement site and the depth / vegetation height ratio on the measured velocity profile and turbulence intensity and the renolds stress is analyzed. the characteristics of the measured velocity distributions and the results of the previous investigators are used to select an analytical expression for the shape of the velocity profile

    利用三維超聲波多普勒流速儀（ adv ）量測不同位置、不同流量下的瞬時流場。分析了測點位置和水深與植被高度比對時均流速分佈的影響。本文還給出了種樹段紊動強度及雷諾應力的垂線分佈。
  19. Wind turbine generator systems - part 11 : acoustic noise measurement techniques

    風輪發電機系統.第11部分:噪音測量技術
  20. The new acoustic measurement services will be developed in phases

    新的聲學校正服務將分作以下兩個階段設立。
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