Refractometer with broad refractive index measurement range

Jing Wan; Yu Lu; Zhian Lu; Weiqi Dou; Cheng Wang; Guirong Jiang

doi:10.1117/12.2500969

24 July 2018 Refractometer with broad refractive index measurement range

Jing Wan, Yu Lu, Zhian Lu, Weiqi Dou, Cheng Wang, Guirong Jiang

Proceedings Volume 10827, Sixth International Conference on Optical and Photonic Engineering (icOPEN 2018); 1082727 (2018) https://doi.org/10.1117/12.2500969
Event: Sixth International Conference on Optical and Photonic Engineering (icOPEN 2018), 2018, Shanghai, China

Abstract

Here a refractometer with broad refractive index measurement range is proposed. This refractometer uses the measured liquid as a liquid prism and utilizes CCD and a set of computer software based on Borland C++ to measure the refractive index of liquid. The proposed refractometer has a small volume. Meanwhile the structure and working principle of the proposed refractometer are introduced. Now the mainly used refractometer is Abbe refractometer which has a refractive index measurement range of 1.30-170. While the theoretical results of our work indicate the measurement range can be up to 1.00-3.60 when the vertex angle of the liquid prism is 30°, and the experimental results have proved it is viable.

Citation Download Citation

Jing Wan, Yu Lu, Zhian Lu, Weiqi Dou, Cheng Wang, and Guirong Jiang "Refractometer with broad refractive index measurement range", Proc. SPIE 10827, Sixth International Conference on Optical and Photonic Engineering (icOPEN 2018), 1082727 (24 July 2018); https://doi.org/10.1117/12.2500969

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