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空间衍射声波波前与压力场的计算机层析三维重建
Three Dimension Reconstruction of Wave Front and Pressure Field of Space Diffraction Sound Wave by Computerized Tomography
【摘要】 应用脉冲载波电子散斑干涉(pulsedcarried-ESPI)与计算机层析技术(CT),实现了由高压电极放电激励所产生的瞬态传输声场在经过不同孔径模板衍射后波前与压力场的三维重建,给出了数值结果,并对噪声条件下的计算机层析重建进行了讨论。
【Abstract】 Pulsed carried ESPI combined with computerized tomography (CT) technique have been used to evaluate the three dimension wave front and pressure field distributions of diffraction field of acoustic wave through different aperture masks. Experiments are accomplished by using an electrical discharge between two electrodes as the sound source. Experimental results are given and the property of CT reconstruction are discussed in condition of noise projections.
【关键词】 衍射声波;
脉冲载波电子散斑干涉;
计算机层析;
【Key words】 diffraction sound wave; pulsed carried ESPI; computerized tomography.;
【Key words】 diffraction sound wave; pulsed carried ESPI; computerized tomography.;
【基金】 国家自然科学基金
- 【文献出处】 光学学报 ,ACTA OPTICA SINICA , 编辑部邮箱 ,1998年12期
- 【分类号】O438
- 【被引频次】4
- 【下载频次】89