Title: On the Design of Focal Distance of Convex Lens
Abstract: This paper centers on the improving experimental design of focal distance of thin lens.One experiment aimed to measure the focal distance of the thin lens.Its design was based on the Gaussian image formation formula,and used the analogue method.The research employed the proportional relationship between resistance wire's length and the resistance,transformed the length survey to the resistance quantity survey,and then measured the object distance and the image distance exactly and indirectly.Digital voltage was applied to obtain the focal distance of thin lens.
Publication Year: 2009
Publication Date: 2009-01-01
Language: en
Type: article
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