轴向分辨率(axial resolution):指可以鉴别两个沿超声波束轴方向分布最短间距之间组织结构的能力,与超声波长或频率?超声脉冲时间等因素有关?
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同时,声衰减系数的存在有利于轴向分辨率的提高。
Meanwhile, the existence of the acoustic attenuation coefficient benefits the axial resolution.
结合高斯光束的强度分布函数,推导了横向与轴向分辨率的表达式。
With the intensity distribution function of Gaussian beam, the lateral and axial resolution expressions were deduced.
感音全息摄影技术已经取得了较高的横向分辨率,但轴向分辨率并不理想。
Acoustic holography has attained a high lateral resolution but a poor axial resolution.
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