一种模拟低/微重力新型啮齿类动物悬吊自动控制装置  

A New Automatic Control Device for Rodent Suspension in Low/Microgravity Simulation

作　　者：韩璇 杜戈涛 李慧媛 詹勇华 阚广捍[1] HAN Xuan;DU Getao;LI Huiyuan;ZHAN Yonghua;KAN Guanghan(State Key Laboratory of Space Medicine,China Astronaut Research and Training Center,Beijing 100094,China;School of Life Science and Technology,Xidian University,Xi’an 710126,China)

机构地区：[1]中国航天员科研训练中心航天医学全国重点实验室,北京100094 [2]西安电子科技大学生命科学技术学院,西安710126

出　　处：《载人航天》2024年第4期443-448,共6页Manned Spaceflight

基　　金：省部级实验动物专项科研课题(SYDW[2020]06);航天医学基础与应用国家重点实验室研究基金资助自主研究项目(SMFA22B01)。

摘　　要：针对模拟低重力环境啮齿类动物部分承重模型的建立过程,因人为因素的干扰易导致测量结果精度不足的问题,设计了一种模拟低/微重力环境的啮齿类动物悬吊自动控制装置。首先,采用SBT440压力传感器模块实现啮齿类动物重力值的自动测量;然后,采用基于STM32单片机控制步进装置实现啮齿类动物悬吊高度的自动调节;最后,使用JAVA语言编写STM32单片机软件控制程序,通过软硬件综合调试以实现模拟低/微重力环境,以此达到啮齿类动物部分承重模型的建立。实验结果表明:啮齿类动物1/6 G平均测量误差为0.8%,初步验证了悬吊装置的可行性。During the establishment process of simulating the partial load⁃bearing model of rodents in low gravity environment,there is often insufficient accuracy of the measurement results due to the in⁃terference of human factors.To solve this problem,a rodent suspension automatic control device in simulating low/micro gravity environment was designed.Firstly,the SBT440 pressure sensor module was used to realize the automatic measurement of rodent pressure value.Then,the stepping device based on STM32 microcontroller was used to realize the automatic adjustment of rodent suspension height.Moreover,the software control program of STM32 microcontroller was written in JAVA lan⁃guage,and the integrated debugging of software and hardware was carried out to realize the simula⁃tion of low/microgravity environment.Thus the establishment of rodent partial load⁃bearing model was achieved.The experimental results showed that the measurement error of 1/6 low gravity for ro⁃dents was 0.8%,which preliminarily verified the feasibility of the suspension device.

关 键 词：低/微重力环境 悬吊自动化控制装置 STM32单片机 软件控制程序 

分 类 号：V7[航空宇航科学技术]