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- The recent advances in ultrasonic guided wave testing technique are summarized. 摘要綜述近年來(lái)超聲導波檢測研究的最新進(jìn)展。
- Guided wave second-harmonic (SH) generation can not be phase matched automatically by Cerenkov radiation scheme. 用波導產(chǎn)生倍頻波時(shí),如果倍頻波進(jìn)入輻射模區,仍然有相匹配問(wèn)題。
- Based on the ultrasonic guided wave technique and the dispersive waveform prediction method, a method about how to image defects in pipes is presented. 摘要在導波傳播理論和頻散波形預測理論的基礎上，研究了超聲導波在檢測管道時(shí)，如何利用時(shí)域波形重構缺陷圖像的問(wèn)題。
- The transmitter generates guided wave in the plate according to magnetostrictive effect,and then it propagates in the plate and is reflected by the damages and edges of the plate. 根據反射信號的到達時(shí)間和波在板中傳播的速度,可判斷出板中缺陷所在位置。改變恒定偏置磁場(chǎng)與時(shí)變磁場(chǎng)的方向可以在板中激勵不同波型的導波。
- Applying classical wave theory, a concept of equivalent elastic modulus on propagation speed modification of guided wave through "variable cross-section" of metal bar embeded layer was put forward. 摘要運用波動(dòng)的經(jīng)典理論，提出了導波在金屬桿嵌入層“變截面”傳播時(shí)波速改變的“等效彈性模量”的概念。
- Guided wave inspection is very attractive in this application as it is particularly sensitive to transverse vertical defects since the waves travel along the length of a rail. 由于波沿著(zhù)軌道長(cháng)度方向傳播，在橫向/垂直向不合格品檢驗中非常靈敏，所以導向波檢驗在這方面是非常有吸引力的。
- Due to the dispersive and multi-mode characteristics of guided waves,the pulse of energy will spread out in space and time as it propagates. 在分析超聲導波時(shí)間-空間傳播特性基礎上,建立了超聲導波檢測的空間表述模型。
- Defect Pipe Imaging Based on Guided Wave Technique 基于導波理論的管道缺陷成像研究
- Our theoretical analysis produces the dispersion curves of longitudinal modes of ultrasonic guided waves in liquid-filled pipes with viscoelastic coatings. 理論分析得到了帶粘彈性包覆層充液管道中縱向模態(tài)的頻散曲線(xiàn)。
- long range guided wave ultrasonic testing 長(cháng)距離超聲導波
- Longitudinal ultrasonic guide wave dispersion equation of inviscid liquid-filled pipe is analyzed theoretically. 從理論上得到了充非粘性液體管道中縱向超聲導波的頻散方程。
- guided wave optics (fiber and integrated optics) 導波光學(xué)
- It is the focus to get eigen equation of all kinds cross section waveguide in guide wave optics. 求解各類(lèi)截面波導的本征方程,一直是導波光學(xué)研究的焦點(diǎn)問(wèn)題。
- guided wave optics(fiber and integrated optics) 導波光學(xué)（光纖和集成光學(xué)）
- The lights in the harbour guided the ship to port. 海港的燈引導船只進(jìn)入港口。
- Be guided by your sense of what is right and just. 做事要有是非觀(guān)念和正義感。
- guided wave ultrasonic testing (GWUT) 超聲導波檢測技術(shù)
- Ultrasonic guided wave testing technique 超聲導波檢測技術(shù)
- ultrasonic guided wave technique 超聲導波理論
- Bill wave his hand to us and then drive away. 比爾向我們揮手告別后開(kāi)車(chē)走了。
