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- solid acoustical lens 固体声透镜
- Four parts are included: acoustic lens, mechanics I electronic circuitsand microcomputer system. 声显微镜由声镜、机械部件、电路和微机软硬件组成。
- It has put forward a imaging method of acoustic lens using photoacoustic signal and according to the Kirchhoff diffraction theory we deduce. 主要内容：1．光声信号声透镜层析成像方法的提出，并依基耳霍夫衍射理论推导了声透镜的脉冲响应。
- 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. 论文针对智能猪用柱形曲面声透镜水浸式线聚焦探头,建立了其声场模型,并对其轴线声场和焦距进行了数值模拟。
- 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. 利用菲涅耳衍射理论推导出了单频点声源经过单声透镜后的点扩展函数、有一定带宽的点声源经过单声透镜后的点扩展函数,以及有一定带宽的点声源经过我们设计的混合声透镜后的点扩展函数。
- Simulation research on acoustic lens beamforming 声透镜波束形成技术仿真研究
- acoustic lens focused transducer 声透镜聚焦探头
- STUDIES ON ACOUSTIC LENS IMAGING OF PHOTOACOUSTIC SIGNAL 光声傅里叶变换成像理论
- Photoacoustic tomography imaging based on an acoustic lens imaging system 基于声透镜成像系统的光声层析成像
- Cheese is a solid; milk is a liquid. 乾酪是固体，奶是液体。
- Solid fuel motors are coming into use. 固体燃料马达即将开始使用。
- 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? 声透镜常用来修正声束形状，用液浸法从管子内壁进行探伤时，应使用哪咱类型的透镜？
- The country was solid for peace. 全国上下都希望和平。
- Water becomes solid when it freezes. 水结冰时便变成固体。
- The miners were solid on this issue. 矿工们在这件事上是一条心的。
- Matter can exist as a solid, liquid, or gas. 物体存在的形态有固体，液体，气体。
- There was a solid vote in favour of the proposal. 提案获全体一致通过。
- Opened the show with an acoustic set. 不用电子乐器开始演出
- When water freezes, it becomes solid. 水结冰时变成固体。
- The students are learning solid geometry. 这些学生正在学习立体几何学。
