光学学报, 2009, 29 (9): 2468, 网络出版: 2009-10-09   

用毛细管焦点法精确测量微量液体的折射率

Measuring Refractive Index of Micro-Quantity Liquid by Focus Method
作者单位
云南大学物理科学技术学院物理系, 云南 昆明 650091
摘要
介绍了用毛细管焦点法精确测量微量液体折射率的一种新技术。该技术基于共轴球面光学系统的成像原理,用LED(λ=580 nm,FWHM为32 nm)为测量光源,用CCD为像接收装置,一次测量样品需要量小于0.002 mL。待测样品封闭在毛细管内测量,有利于对毒性、挥发性和吸湿性强的液体介质折射率的测量。用此技术对纯水、乙醇、乙二醇和丙三醇样品的折射率做了测量,测量精度分别为0.0001,0.0002,0.0003和0.0003。论文在分析实验装置的测量灵敏度和成像景深基础上,提出了进一步提高测量精度的方法。
Abstract
A new method for measuring the refractive index of micro-quantity liquid based on imaging principle of a coaxial spherical surface optical system is introduced. LED (λ=580 nm,FWHM: 32 nm) is used as light source and CCD camera as the equipment of receiving image. The required sample is less than 0.002 mL. The liquid to be measured is closed in a glass capillary, so that is benefited to measure the poisonous, volatile and absorptive liquid samples. Four liquid mediums, water, ethanol, ethylene glycol and glycerin have been measured, and the precision of obtained refractive index is 0.0001, 0.0002, 0.0003 and 0.0003, respectively. Based on an analysis on the sensitivity of refractive index and the depth of field of the measurement system, the ways to improve the measurement precision are proposed.
参考文献

[1] 2 WA-J Abbe refractometer instruction manual, shanghai optical instrument 5 production 2WA-J型 阿贝折射仪使用说明书, 上海光学仪器五厂生产

[2] 花世群, 骆英, 洪云. 基于等厚干涉原理的液体折射率测量方法 [J]. 中国激光, 2006, 33(11): 1542-1546

    Hua Shiqun, Luo Ying, Hong Yun. Measurement of refractive index of liquid by the equal thickness interference[J]. Chinese J. Lasers, 2006, 33(11): 1542-1546

[3] 周瑜, 贾光明, 张贵忠 等. 用高精度法布里珀罗干涉仪测量液体的折射率 [J]. 中国激光, 2006, 33(s1): 345-348

    Zhou Yu, Jia Guangming, Zhang Guizhong et al.. Using precision fabry-perot interferometer to measure refractive index of aqueous solution [J]. Chinese J. Lasers, 2006, 33(s1): 345-348

[4] 邓广安, 蔡志刚, 张运华 等. 用衍射光栅和CCD测量透明材料折射率 [J]. 光学学报, 2004, 24(1): 99-103

    Deng Guangan, Cai Zhigang, Zhang Yunhua et al.. Refraction index measurement of transparent material by using diffraction grating and CCD [J]. Acta Optica Sinica, 2004, 24(1): 99-103

[5] 李强, 韩广辉, 邢曼男 等. 一种精确测量微量液体折射率的仪器 [P]. 国家实用新型发明专利.专利申请号: 200820081301.1

    Li Qiang, Han Guanghui, Xing Mannan et al.. The apparatus of accurate measuring the refractive index of micro-quantity liquid [P]. Patent of China. Patent application No.: 200820081301.1

[6] 普小云, 白然, 邢曼男 等. 用玻璃毛细管精确测量微量液体的折射率 [P]. 国家发明专利.专利申请号: 2007100660162

    Pu Xiaoyun, Bai Ran, Xing Mannan et al.. Measuring the refractive index of micro-quantity liquid by using glass capillary [P]. Patent of China. Patent application No.: 2007100660162

[7] 邢曼男, 白然, 普小云. 精确测量微量液体折射率的新方法[J]. 光学精密工程, 2008, 16(7): 1196-1201

    Xing Mannan, Bai Ran, Pu Xiaoyun. Novel measuring method for refractive index of micro-quantity liquid [J]. Opt. Precision Engineering, 2008, 16(7): 1196-1201

[8] 田兴时, 林南英, 姚裕昌 等. 光学[M]. 昆明: 云南大学出版社, 1995

    Tian Xingshi, Lin Nanying, Yao Yuchang et al.. Optics[M]. Kunming: Press of Yunnan University, 1995

[9] 王武义. 误差原理与数据处理[M]. 哈尔滨: 哈尔滨工业大学出版社, 2001

    Wang Wuyi. The Principal of Error and Disposal of Data [M]. Harbin: Press of Harbin Institute of Technology, 2001

[10] 安连生. 应用光学(第三版)[M]. 北京: 北京理工大学出版社, 2004. 100-102

    An Liansheng. Applied Optics. The 3rd edition[M]. Beijing: Beijing Institute of Technology Press, 2004. 100-102

[11] 郁道银, 谈恒英. 工程光学(第二版)[M]. 北京: 机械工业出版社, 2007. 67-72

    Yun Daoyin, Tan Hengying. Engineering Optics. The 2nd edition [M]. Beijing: China machine press, 2007. 67-72

[12] Seongsik Chang, Lasing Characteristics of Deformed Micro Cavities [D]. Yale University, 1998. 74-77

[13] 孙杰, 袁跃辉, 王传永. 数字图像处理自动图像聚焦算法的分析和比较 [J]. 光学学报, 2007, 27(1): 35-39

    Sun Jie, Yuan Yuehui, Wang Zhuanyong. Comparison and analysis of algorithms for digital image processing in autofocusing criterion [J]. Acta Optica Sinica, 2007, 27(1): 35-39

[14] 曾光宇, 张志伟, 张存林 等. 光电检测技术[M]. 北京: 清华大学出版社,北京交通大学出版社, 2006. 145-153

    Zeng Guangyu, Zhang Zhiwei, Zhang Cunlin et al.. The Checking and Testing Technology of Light and Electricity [M]. Beijing: Press of Tsinghua University, Press of Beijing Jiaotong University, 2006. 145-153

李强, 韩广辉, 邢曼男, 普小云. 用毛细管焦点法精确测量微量液体的折射率[J]. 光学学报, 2009, 29(9): 2468. Li Qiang, Han Guanghui, Xing Mannan, Pu Xiaoyun. Measuring Refractive Index of Micro-Quantity Liquid by Focus Method[J]. Acta Optica Sinica, 2009, 29(9): 2468.

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