acoustic noise measurement 中文意思是什麼

acoustic noise measurement 解釋
聲噪聲測量
  • 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。
  • noise : n 1 聲音，聲響。2 叫喊；嘈雜聲，噪音；喧鬧聲；吵鬧，騷動，騷擾。3 〈古語〉謠言，風聲。4 〈美國〉...
  • 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. 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。
  2. 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。
  3. 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。
  4. 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
  5. Wind turbine generator systems - acoustic noise measurement techniques

    風力渦輪發電機系統.噪音測量技術
  6. In the study of environment model - based processing, the thesis presents a signal enhancement method based on combination of the ocean acoustic propagation, measurement system and noise models. furthermore, a signal enhancement algorithm is developed on the basis of the model - based identifer ( mbid ) implemented by the the augmented gauss - markov process and corrsponding extended kalman filter

    本文通過了對模基信號處理實現信號增強的理論研究，提出了一種利用傳播模型、噪聲模型和陣測量模型、並注重環境信息來實現水聲信號增強的方法，繼而實現了基於增廣高斯?馬爾可夫過程和相應的擴展卡爾曼濾波聯合的模基辨識器的信號增強演算法。
  7. Wind turbine generator systems - part 11 : acoustic noise measurement techniques iec 61400 - 11 : 2002 ; german version en 61400 - 11 : 2003

    風力渦輪機發電機系統.第11部分:噪音測量技術
  8. We get and analysis the data of the reverberation, noise and acoustic pressure level of the conference hall and lecture hall in some northern university in measurement

    實測和分析了北方某大學的甲報告廳和乙會議廳的混響時間、背景噪聲、聲場級等數據。
  9. Acoustics. measurement of the acoustic insulation of building and building components. laboratory measurement of the reduction in transmission of impact noise due to floor covering and floating floors

    聲學.住宅和建築構件隔音能力測量.地板和活動墊板撞擊噪音傳播衰減的實驗室測量法
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