sound impedance 中文意思是什麼
sound impedance
解釋
聲阻抗-
Acoustics. testing of architectural acoustics. determination of sound absorption coefficient and impedance in a tube
聲學.駐波管法測定標準入射角聲阻抗和吸音率 -
Therefore, the fluid sound propagation of the leakage pipes is studied, according to the acoustic impedance characters
文中從聲學的角度出發，分析了漏損點的聲阻抗特性，並對漏損管道內流體的聲傳播進行了研究。 -
The analytical mode is based on the theory of sound propagation in layered media. the concept of equivalent parameters is established. the absorption of sound energy by damping layer ' s is represented by use of complex sound impedance
解析模型以分層介質中的波動理論為基礎，建立了等效參數的概念，並運用聲阻抗的復數表示法把阻尼層對介質層聲能吸收的影響都考慮進去，通過比較敷設消聲覆蓋層前後多層傳遞損失的差異來獲得消聲層的效率。 -
Besides, eigenvalue analysis is used in sound - impedance matrix. with the help of optimization theory, the conclusion is received that the radiation efficiences by a group of velocity distribution corresponding to eigenvector are proportional to the eigenvalue of the velocity vectors
並對阻抗矩陣進行了特徵值分析，從理論上說明了特徵向量對應的一組速度分佈，其輻射效率正比于該階特徵向量對應的特徵值。 -
Acoustics - determination of sound absorption coefficient and impedance in impedance tubes - method using standing wave ratio
聲學.阻抗管中吸音率和阻抗的測定.駐波比率法 -
Acoustics - determination of sound absorption coefficient and impedance in impedance tubes - part 1 : method using standing wave ratio
聲學.阻抗管中吸聲系數和阻抗測定.第1部分:駐波比率法 -
" utilization of multi - attribute transformation in predicting well logging parameter " has transcended many traditional methods of reservoir research in many aspects, and possessing many outstanding technology superiority, which are showed below : ( 1 ) it takes new technology thought - " date - driven law " as the guidance, and inherits and synthesizes forefathers successful technology formed in many years. ( 2 ) ' it directly calculates the well logging parameter by way of the multiple attribute transformation, rather than by way of the sound impedance, like the porosity, while the way before is to make further estimates of the sound impedance from the seismic inversion result so that the result suffers the influence of many factors. ( 3 ) the usefulness of the seismic attribute is drawn from the seismic data, rather than the traditional poststack seismic data after nonlinear a transformation
「 ；利用多屬性變換預測測井參數」在很多方面超出了傳統意義上的儲層研究方法，具有突出的技術優勢，表現在： （ 1 ）它以新的技術思想? ? 「數據驅動法」為指導，繼承並綜合利用了前人多年來形成的成功技術： （ 2 ）它是直接通過多屬性變換預測測井參數，而不是通過聲波阻抗，如空隙度，以往的做法是從地震反演結果中的聲波阻抗做進一步的模擬估算，其結果受到諸多因素的影響； （ 3 ）所用到地震屬性是從地震數據中提取的，而不是傳統的迭后地震數據本身。 -
The authors use the specific acoustic impedance of mpp which needs to be measured beforehand in the approach, and then, the transfer matrix method is employed to predict the sound - absorbing performance of single or multi - layered mpp
採用該方法獲得的微孔板吸聲性能曲線與實測結果相當接近，能較好地預測各種組合微孔板的吸聲性能。 -
Optimization of compound impedance in a double layer sound absorbing structure
雙層阻抗復合吸聲結構的優化設計 -
Acoustics - determination of sound absorption coefficient and impedance in impedances tubes - method using standing wave ratio
聲學.阻抗管中吸聲系數和阻抗的測定.使用駐波比的方法 -
Acoustics - determination of sound absorption coefficient and impedance in impedance tubes - transfer - function method
聲學.阻抗管中吸聲系數和阻抗的測定.傳遞函數法 -
Acoustics - determination of sound absorption coefficient and impedance in impedance tubes part 2 : transfer function method
聲學阻抗管中吸聲系數和聲阻抗的測量第2部分:傳遞函數法 -
Acoustics - determination of sound absorption coefficient and impedance in impedance tubes - part 2 : transfer - function method
聲學.阻抗管中吸聲系數和阻抗測定.第2部分:傳遞函數法
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