新型固体热胀冷缩综合演示仪与相关物理原理的讨论

Discussion on new-type colligation demonstration meter on thermal expansion and contraction of solid and exploring of physical principle

固体热胀冷缩实验一般都采用"金属环+金属球"进行演示.本文对该演示实验相关物理原理进行了深入研究,并利用固体热胀冷缩特性作为"激光电路系统的通断控制"开关,利用"光路的微小放大作用"显现固体热胀冷缩的效果,研制出一种新型固体热胀冷缩综合演示仪.

The demonstrative meter of thermal expansion and contraction of solid is made of a metallic hoop and a metallic ball. In this paper, we introduce a new synthesis-demonstration meter of thermal expansion and contraction of solid based on more exploration of physical principle of the demonstration experiment, which uses the characteristic of thermal expansion contraction of solid as the switch of the passing or breaking to the laser circuitry, and also uses the amplification function of the light path to minim appearing the effect of the thermal expansion contraction. Different from the traditional meters, by using this meter, we have made a virtual improvement in both the notability of demonstrative effect and the possession of synthetic knowledge.