Instrumentation of the light refraction for measuring the refractive index of transparent liquids

被引:3
|
作者
Luis Camas-Anzueto, Jorge [1 ]
Guillermo Castellanos-Gonzalez, Carlos [1 ]
Anzueto-Sanchez, Gilberto [2 ]
Perez-Patricio, Madain [1 ]
Alberto Hernandez-Gutierrez, Carlos [1 ]
机构
[1] Tecnol Nacl Mexico IT Tuxtla Gutierrez, Optomechatron Res Grp, Tuxtla Gutierrez, Chiapas, Mexico
[2] Ctr Invest Opt, Fiber Laser Grp Leon, Guanajuato, Mexico
关键词
refractive index measurement; instrumentation; measurement; light refraction; OPTICAL-FIBER SENSOR; DISTILLED WATER; TEMPERATURE;
D O I
10.1117/1.OE.60.5.054101
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
We propose new instrumentation to measure the refractive index (RI) of transparent liquids as a function of temperature. The physical phenomenon used to carry out the measurement is the light refraction that occurs in transparent liquids. A width change in a reference object is produced by light refraction, which is related to the RI. Image processing was used to measure the object width using an image from a digital microscope. The instrument measures the RI from a range of 15 degrees C to 100 degrees C with an accuracy of 10-4%. The measurement procedure was calibrated with distilled water and acetonitrile samples, and the Sellmeier and Cauchy equation was used to compare our results. Finally, as an appropriate application, the RI of lophine in a solution was measured. (C) 2021 Society of Photo-Optical Instrumentation Engineers (SPIE)
引用
收藏
页数:14
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