一种小鼠体温恒定装置的研制  

Development of a thermostat for mice

作　　者：麦庆军 黄鑫 郭勇涛 林璟鸿 李结松 MAI Qingjun;HUANG Xin;GUO Yongtao;LIN Jinghong;LI Jiesong(School of Basic Medical Sciences,Guangzhou Medical University,Guangzhou 510283,China)

机构地区：[1]广州医科大学基础医学院,广东广州510283

出　　处：《中国医学物理学杂志》2021年第9期1142-1147,共6页Chinese Journal of Medical Physics

基　　金：教育部第一批产学合作协同育人项目(201901103013)。

摘　　要：目的:麻醉中的小鼠较易失去恒定体温而死亡,为维持小鼠的正常体温,设计一款专门用于维持小鼠体温的装置。方法:采用碳纤维材料作为加热片,基于MAX6675芯片的热电偶作为温度传感器,用STM32F103单片机作为核心芯片,运用经典PID算法进行温度控制。结果:给小鼠加热和保温的碳纤维加热片的温度误差控制在±0.75℃以内。结论:本装置能满足麻醉实验中小鼠体温恒定的要求,成本低廉,易于推广,系统有效可行。Objective Considering that mice under anesthesia are prone to die because of losing constant body temperature,a device is designed to maintain the body temperature of mice.Methods Carbon fiber was used as heating plate,the thermocouple based on MAX6675 chip as temperature sensor,and STM32F103 microcontroller as the core chip.In addition,classical PID algorithm was applied for temperature control.Results The temperature error of carbon fiber heating plate for heating the mice and heat preservation was controlled within±0.75℃.Conclusion The designed device can meet the requirement for mice thermostasis in anesthetic experiment,and it is low cost,easy to popularize.The system is also proved to be effective and feasible.

关 键 词：体温恒定装置 碳纤维 MAX6675 PID算法 

分 类 号：R318[医药卫生—生物医学工程]