利用热电效应制作火警报警器  

Application of Sensitive Resistance in Biological Growth and Culture Environment

作　　者：熊娟[1] 高贻钧[1] 阮涛 XIONG Juan;GAO Yijun;RUAN Tao(College of Science,Huazhong Agricultural University,Wuhan 430070,China;College of Food Science and Technology,Huazhong Agricultural University,Wuhan 430070,China)

机构地区：[1]华中农业大学理学院,湖北武汉430070 [2]华中农业大学食品科学技术学院,湖北武汉430070

出　　处：《大学物理实验》2021年第3期73-75,共3页Physical Experiment of College

基　　金：中央高校基本科研业务费专项基金(2662018JC013)。

摘　　要：本实验装置利用6片SP1848-27145型温差发电片串联,在其热端放置热源,在其冷端放置散热片,使热端和冷端之间因温差产生电势差。利用dc-dc lm2596型稳压模块稳定输出5V电压,对报警装置提供电能。本装置无需外接电源,误报率低,适用范围广。In this experimental device,6 SP1848-27145 thermal generator pieces are connected in series.A heat source is placed at the hot end and a heat sink is placed at the cold end,so that a potential difference is generated between the hot end and the cold end due to the temperature difference.DC-DC LM2596 voltage regulator module is used to output 5 V voltage stably and provide electric energy to the alarm device.The device does not need external power supply,low false alarm rate,wide application range.

关 键 词：热电效应 温差发电 火警报警器 

分 类 号：O4-33[理学—物理]