제작이 쉬운 정밀 각도기를 이용한 온도에 따른 물의 굴절률의 측정 및 불확도 분석
Measurement and uncertainty analysis of refractive index of water as a function of temperature using home-made precision goniometer
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초록
Graphic Art Film 출력을 이용하여 ±0.02°의 분해능(불확도)을 지니는 정밀 각도기를 제작하여 온도에 따른 물의 굴절률 변화를 측정하였다. 측정 결과는 95 % 신뢰 수준에서 문헌값과 불확도 범위 내에서 일치하였고, 불확도 값은 ±2 ∼3 ×10 ^(-3 )을 지녔다. 본 연구에서 제작한 교육용 정밀 각도기를 학교 실험수업에 활용함으로써 학생들이 손쉽고 정밀하게 유체의 굴절률 측정에 이용할 수 있을 것으로 기대된다.
Abstract
We have measured the refractive index of water as a function of temperature with home-made precision goniometer printed in Graphic Art Film having the resolution of ±0.02°. Experimental results of the refractive index of water in various temperatures agree with the published values and have the uncertainty of ±2∼3 ×10^()-3within the 95 % confidence interval. By applying the home-made goniometer to experiment class, A student can measure the refractive index of water easily and precisely.
참고문헌 (9)
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