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本文用脉冲红宝石激光器结合差分干涉技术研究气体与水的两相传热过程,实验结o果表明在水蒸汽与空气的分界面里存在大量的波纹状的细条纹;并分析了折射率与温度梯度的关系。 相似文献
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计算层析成像光谱仪中衍射器件的设计 总被引:1,自引:1,他引:0
结合成像光谱系统对衍射器件的要求,采用系统优化方法设计了两种衍射器件,给出了光栅的设计结果和光谱响应曲线,性能测试表明,实测结果与设计值相吻合。系统图像采集实验结果表明,在410-700nm范围内,所设计的光栅能满足系统的要求。 相似文献
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The spectral relative phase is directly derived from the spectrally resolved interferogram by the Fourier transform method. Furthermore, the spectral absolute phase can also be found. The spectral absolute phase is used to measure the refractive index. In addition, the group index and the derivatives of the refractive index with respect to the wavelength are given through the polynomial fitting process. The measured results are compared with the published data and the new measurement results of the water are given for the wavelength larger than 1.3 μm. 相似文献
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