FF Free Field Unit 自由场测量器
In the digital measurement for free-form surface, image mosaics are needed to achieve the whole measurement for the small measuring field of sensor unit.
自由曲面数字化测量中，由于传感器单元测量区域小，所以实现整体测量需要进行多次的图像拼接。
The small measuring field of sensor unit is the key problem in the free form surface measurement of large scale objects.
本文针对大型物体自由曲面测量中，传感器单元测量区域小等问题，提出了一种基于粘性目标实现空间图像拼接的方法。
In the first section, to study the acoustic response properties of the IC in the pipistrellus abramus, single unit extracellular recording with microelectrode was used in free field conditions.
在第一部分，通过在自由声场条件下，采用单单位胞外微电极记录方法，研究了普通伏翼蝠下丘神经元基本声反应特性。
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