建筑工程材料检测技术研究

目前我国经济水平处于不断提升的阶段,人们对于建筑工程的要求也越来越高,对于建筑工程中所使用的材料质量也越来越看重。而对于建筑行业来说,在实际建筑中会涉及到多种多样的材料,对建筑材料的选择与建筑工程的质量有着直接联系。因此,必须要加强建筑工程材料的检测,这不仅关系人们人身财产安全,同时也是权衡我国建筑行业好坏的标准之一^([1])。本文主要对建筑工程材料检测技术进行研究。

Dual-beam delay-encoded all fiber Doppler optical coherence tomography for in vivo measurement of retinal blood flow

In this paper,we propose and demonstrate a dual-beam delay-encoded Doppler spectral domain optical coherence tomography(OCT) system for in vivo measurement of absolute retinal blood velocity and flow with arbitrary orientation.The incident beam is split by a beam displacer into two probe beams of the single-spectrometer spectral domain OCT system with orthogonal polarization states and an optical path length delay.We validate our approach with a phantom and in vivo experiments of human retinal blood flow,respectively.