
n. 透射波;發射波
The experiment research on the forward scattering of airborne radar transmitted wave with airscrews is presented in this paper.
本文就飛機螺旋槳對機載雷達發射波前向散射的實驗研究情況作了介紹。
Echo Sounder is a kind of acoustic measuring depth equipment, which can measure depth with the time between transmitted wave and echo on condition in which the speed of ultrasonic is fixed.
回聲測深儀是用來測量水深的一種聲學測量設備,其以水中超聲波的傳播速度為确定條件,利用發射波與反射回波時間差來測量水深。
Owing to the presence of interface of ***lectric and air, it is required to impose three waves, including incident plane wave, reflected and transmitted waves at the total-scattered field boundary.
考慮入射波在兩種介質界面上會産生反射和透射,故在總場邊界上引入入射波、反射波和透射波。
The entire length of the tower is equipped with a feeder (a coaxial wave-guide) through which signals are transmitted from the transmitter to the antenna on the spire.
信號傳輸線(一個同軸波導管)貫穿整個塔身,通過它,信號從傳輸器運送到塔尖的天線。
A velocity wave and a stress wave resulting from the stress variation are transmitted downward along the drill string.
懸點的應力變化産生速度波和應力波沿鑽杆向下傳遞。
在電磁學和波動理論中,"transmitted wave"(透射波)指能量通過介質界面繼續傳播的波動現象。當入射波遇到不同特性的介質交界面時,部分能量會穿透界面形成透射波,其傳播特性遵循斯涅爾定律和邊界連續性條件。
物理機制
根據喬治亞州立大學HyperPhysics平台的解釋,透射波的幅度和相位由介質特性阻抗決定。當電磁波從空氣(特性阻抗377Ω)進入介質材料時,透射波電場強度可表示為: $$ E_t = frac{2Z_2}{Z_1+Z_2}E_i $$ 其中$Z_1$、$Z_2$分别為兩種介質的特性阻抗,$E_i$為入射波電場強度。
工程應用
IEEE通信協會官網指出,在光纖通信系統中,透射波承載着99%以上的信息傳輸量。5G基站天線設計時,工程師通過優化介質基闆參數,确保毫米波透射率達到85%以上。
影響因素
《電磁波理論》(David K. Cheng著)提出介質損耗角正切值直接影響透射波衰減率。實驗數據顯示,當介質損耗從0.001增至0.01時,30GHz微波透射功率下降約12dB。這種現象在雷達罩設計中具有重要參考價值。
“Transmitted wave”(透射波)是物理學中波動現象的重要概念,指當波(如光波、聲波、電磁波等)遇到兩種不同介質的界面時,穿過界面并繼續在第二種介質中傳播的波。以下是詳細解釋:
若需進一步了解具體場景(如電磁波透射的邊界條件),可結合具體領域資料深入分析。
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