双棱镜干涉实时测量透明液体浓度REAL-TIME MEASUREMENT OF TRANSPARENT LIQUID CONCENTRATION USING PRISM INTERFEROMETRY
赵艳,李巧梅,付会霞,韩秋子,张耕豪,张馨雨
摘要(Abstract):
本文在平行光通过双棱镜发生干涉的基础上,提出了一种基于干涉条纹的位移数测量溶液的折射率和浓度的方法,并构建了实时抓取干涉条纹平移视频和输出平移像素数的平台。通过此实验平台测量蔗糖、盐溶液折射率,绘制了蔗糖、盐溶液折射率与浓度的定标拟合曲线,依据定标曲线分别测量了蔗糖和盐溶液的浓度。浓度测量结果对应的相对误差范围为0.18%~0.65%,精度为0.1%。这个装置能够测量透明液体的浓度,具有搭建简单、易于操作等优点。测量结果和理论分析的高度一致性,进一步证实了本方法的科学准确性和实际可行性,为溶液浓度分析提供了一种有效的技术手段。
关键词(KeyWords): 双棱镜干涉;液体折射率测量;液体浓度测量;实时抓取
基金项目(Foundation): 省部级产学合作协同育人项目(220604090303047);; 重庆市高等教育教学改革研究项目(223022);; 重庆大学实验技术人员研修项目(20231202)
作者(Author): 赵艳,李巧梅,付会霞,韩秋子,张耕豪,张馨雨
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