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- solid acoustical lens 固體聲透鏡
- Four parts are included: acoustic lens, mechanics I electronic circuitsand microcomputer system. 聲顯微鏡由聲鏡、機械部件、電路和微機軟硬件組成。
- It has put forward a imaging method of acoustic lens using photoacoustic signal and according to the Kirchhoff diffraction theory we deduce. 主要內容：1．光聲信號聲透鏡層析成像方法的提出，并依基耳霍夫衍射理論推導了聲透鏡的脈沖響應。
- The paper focuses on the immersion line-focusing ultrasonic transducer with cylinder curved acoustic lens used in intelligent pig,establishes a mathematical model of acoustic fields,calculates its acoustic field distribution and focal length. 論文針對智能豬用柱形曲面聲透鏡水浸式線(xiàn)聚焦探頭,建立了其聲場(chǎng)模型,并對其軸線(xiàn)聲場(chǎng)和焦距進(jìn)行了數值模擬。
- Discussed the achromatic principle of our hybrid acoustic lens system by deducing the point spread function of a point source with a bandwidth through the different imaging system. 利用菲涅耳衍射理論推導出了單頻點(diǎn)聲源經(jīng)過(guò)單聲透鏡后的點(diǎn)擴展函數、有一定帶寬的點(diǎn)聲源經(jīng)過(guò)單聲透鏡后的點(diǎn)擴展函數,以及有一定帶寬的點(diǎn)聲源經(jīng)過(guò)我們設計的混合聲透鏡后的點(diǎn)擴展函數。
- Simulation research on acoustic lens beamforming 聲透鏡波束形成技術(shù)仿真研究
- acoustic lens focused transducer 聲透鏡聚焦探頭
- STUDIES ON ACOUSTIC LENS IMAGING OF PHOTOACOUSTIC SIGNAL 光聲傅里葉變換成像理論
- Photoacoustic tomography imaging based on an acoustic lens imaging system 基于聲透鏡成像系統的光聲層析成像
- Cheese is a solid; milk is a liquid. 乾酪是固體，奶是液體。
- Solid fuel motors are coming into use. 固體燃料馬達即將開(kāi)始使用。
- Acoustical lenses are used commonly for contour correction. When scanning the inside of a pipe section by the immersion method, which of the following lens types would be used? 聲透鏡常用來(lái)修正聲束形狀，用液浸法從管子內壁進(jìn)行探傷時(shí)，應使用哪咱類(lèi)型的透鏡？
- The country was solid for peace. 全國上下都希望和平。
- Water becomes solid when it freezes. 水結冰時(shí)便變成固體。
- The miners were solid on this issue. 礦工們在這件事上是一條心的。
- Matter can exist as a solid, liquid, or gas. 物體存在的形態(tài)有固體，液體，氣體。
- There was a solid vote in favour of the proposal. 提案獲全體一致通過(guò)。
- Opened the show with an acoustic set. 不用電子樂(lè )器開(kāi)始演出
- When water freezes, it becomes solid. 水結冰時(shí)變成固體。
- The students are learning solid geometry. 這些學(xué)生正在學(xué)習立體幾何學(xué)。
