聲折射 的英文怎麼說

中文拼音 [shēngzhéshè]
聲折射 英文
acoustic refraction
  • 折 : 折動詞[口語]1. （翻轉） roll over; turn over 2. （倒過來倒過去） pour back and forth between two containers
  • 射 : Ⅰ動詞1 （用推力或彈力送出） shoot; fire 2 （液體受到壓力迅速擠出） discharge in a jet 3 （放出） ...
  1. The sonobuoy permits recording a refraction profile with only one ship.

    聲納浮標允許只以一艘船來記錄折射剖面。
  2. A noise figure improved l - band edfa based on hi - bi ( high birefringence ) fiber loop mirror as ase rejecter is presented for the first time

    主要工作如下: 1 .首次提出了基於雙折射光纖環鏡優化l - bandedfa噪聲性能的方案。
  3. By utilizing the comb - like reflection spectrum of a hi - bi fiber loop mirror to suppress the ase ( amplified spontaneous emission ) of a double - pass edfa, the noise figure of this amplifier is much improved

    利用雙折射環鏡的梳狀反射特性抑制雙通edfa的ase ，從而使放大器的噪聲性能得到了明顯改善。
  4. The stability output second harmonic generation ( shg ) experiment results of single - longitudinal mode and multi - longitudinal mode with long cavity were explained reasonably with these rate equations. the high polarization of fundamental wave in the isotropic laser media nd : yag with type - i critical phase - matching lbo was studied with the rate equations including polarization of fundamental light. using the polarization function of lbo, a quartz full - wave plate was introduced into the cavity, a kind of birefringent filter by considering the combination of the polarization function of the type - i critical phase - matching doubling frequency crystal lbo and the quartz whole - wave plate was constructed

    將腔內多縱模倍頻速率方程推廣應用到準三能級藍光激光器中，分析了一個縱模、兩個縱模、多個縱模時的噪聲情況，合理地解釋了實驗中激光器單縱模運轉以及長腔多縱模運轉時穩定輸出的實驗現象，同時利用該速率方程分析了以各向同性激光晶體nd : yag為工作物質，類臨界相位匹配lbo為倍頻晶體的藍光激光器中基頻光偏振特性，合理利用類臨界相位匹配lbo倍頻晶體的偏振特性與引入的石英晶體全波片構成雙折射濾光片，通過選單頻來抑制噪聲，獲得了藍光低噪聲的穩定輸出。
  5. The research results are controlled source which has linear or nonlinear variabe frequency scan function and the seismic instruments which match with it, and the method of small group intervals, small offset, much more channels, short array length, high - frequency receivers are applied during the link of data acquisition, and that the techniques of the refraction static correction, the noise suppressing, the high - resolution velocity analysis, the wavelet length compression, the wavelet zero - phase, and the prestack migration should be applied emphasizedly during the link of data processing and interpretation

    研究表明，對于城市活斷層的抗干擾高解析度淺層地震勘探，在數據採集環節應採用具有線性或非線性變頻掃描功能的可控震源和與其相匹配的地震儀器，以及小道間距、小偏移距、多接收道、短排列和高頻檢波器接收的工作方法；在數據處理與解釋環節，要重視折射靜校正技術、噪聲壓制技術、高精度速度分析技術、子波壓縮技術、子波零相位化技術和疊前偏移技術等的應用。
  6. It combines the advantages of ultrasound and optical technology. ultrasonic wave scatters much less in biological tissue than light wave and can be used as a localizer in tissue. the diffused photons tagged by the ultrasound in the focal zone will be collected and used for image

    超聲調制主要是使散射介質內的散射粒子的分佈以及光學特性發生變化，比如說使介質的折射率發生改變而導致光學相位變化，結合散射和自相關理論可以解釋一些超聲調制多重散射光的現象。
  7. This article describes a way of special ultrasonic system which monitors thermal stress in seamless welded rails. this monitoring system is a non destructive testing system, which adopts avr mcu and high - precise time chip processing as the core of it, and adopts the critically refracted longitudinal wave as the object of measuring. my studying focuses on the theory of the monitoring system, which will be listed in this arctile : according to the snell theory, the theory of motivating of critically refracted longitudinal wave is described in details, and the finite element software is used to emulate the propagating course. the formulas of calculating the pts of swr are taken from the acoustoelasticity theory, and the calculating the parameters is introduced. according to assemble materials, three kinds of ways of monitoring the pts of swr using critically refracted longitudinal wave are described, which are measuring the sound - time in changeless distance, ultrasonic critical - angle refractomery and frequency spectrum, the first way of ways is used in this experiment system. the factors, which effect the monitoring system, are assaid in some degree based

    本文的研究工作重點在無縫焊接鋼軌溫度應力測量系統的理論模塊，包括根據snell原理，研究極限折射縱波的激發機理，並使用有限元軟體ansys進行模擬;根據聲彈性理論以及公式推導出計算無縫焊接鋼軌中的溫度應力的公式，並對其中參數的求解方法進行介紹;根據收集的資料，介紹了三種使用極限折射縱波測量無縫焊接鋼軌溫度應力的方法，即固定距離測量聲時法、臨界角折射法和頻譜分析法，本實驗系統使用的是第一種;根據實驗經驗以及相關資料，分析了影響極限折射縱波測量溫度應力的幾個因素，並提出了相應的解決方法;根據實驗系統的需要，獨立設計並加工出相關配套的實驗設備，包括實驗鋼塊、有機玻璃楔塊、固定件、載荷外框裝置等。
  8. He shot another arrow, and this time the ape didn ' t dodge - - it snatched the arrow out of the air ! then it sniffed the arrow contemptuously before breaking it in two

    他又射了一箭，這次猿猴沒有躲，他在空中接住了箭！它輕蔑地用鼻子發出嗤嗤聲，然後將箭折成兩段。
  9. Operating modes of ln one - dimension anisotropic aeo device and kdp two - dimension isotropic and anisotropic aeo device are determined. the principle to determine electro - optic operating mode is that the difference of two intrinsic diffractive index doesn ’ t contain nature birefringence and the acousto - optic operating mode should achieve a higher acousto - optic merit value to improve the efficiency

    選擇電光工作模式時，以所選取的電光工作模式的兩個本徵模之差不含有自然雙折射量為最佳模式;選擇聲光工作模式時，以聲光優值盡可能大為原則，以便提高器件的衍射效率。
  10. The sound speed distribution of ocean is not uniform, so the sound ray is often curving because of refraction when sound transmitting through the sea channel. this means the time delay between the transmitter and the receiver is larger than the time delay between them in the condition that the sound ray is straightaway, then positioning error is caused

    海洋中聲速分佈是不均勻的，因此由於折射效應，聲音在海洋通道傳播過程中其聲線是彎曲的，聲線彎曲意味著聲信號從發射點到接收點的傳播時延大於聲信號直線傳播的時延，致使定位產生誤差。
  11. Theoretical calculation about reflection and refraction of plane sound wave on parallel interface

    平面聲波在平行分界面上反射和折射的理論計算
  12. The average gain and nf are 22. 22db and 8. 69db respectively. gain flatness under single and double lasers control are 0. 69db and 1. 51db. a gain - clamped dual - stage l - band edfa by utilizing backward c - band ase as control light is presented for the first time

    2 .我們還提出了一種優化反射式edfa噪聲性能的方案，通過利用高雙折射環鏡代替普通光纖環鏡來抑制鉺纖的前向ase ，雙通放大器在1580 . 84nm ~ 1588 . 48nm范圍內的平均噪聲系數減少了3 . 7db 。
  13. In addition, the vi has the ability to calculate the k value and sensor distance automatically

    本虛擬探傷儀實現了探頭前沿距離、折射角正切k這兩個參數的自動標定，這是國內所有超聲探傷儀沒有實現的。
  14. The average noise figure of the double - pass l - band edfa based on hi - bi fiber loop mirror is 3. 7db lower than that of the one based on a common fiber loop mirror

    基於雙折射光纖環鏡的l - bandedfa比用普通光纖環鏡的放大器的平均噪聲低3 . 7db 。
  15. Based on the stress measurement model using the critically refracted longitudinal ( lcr ) wave, this paper discussed the key techniques of measuring the stress in accessories, which includes the generation, receiving and afterwards management of lcr wave. an experimental stress measurement system based on time was also designed and constructed in this project, by measuring the travel time of lcr wave in the medium, the stress state of testing object can be well evaluated

    本文基於臨界折射縱波（ criticallyrefractedlongitudinal ， lcr ）應力測量模型，研究採用lcr波測量零件中切向應力的關鍵技術，包括lcr波的產生、接收和后續處理，設計並製作了基於傳播聲時的應力檢測實驗系統，通過測量lcr波在材料內部傳播聲時的改變，評估被測物體中的應力情況。
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