主动制冷型温控系统在捷联式重力仪上的应用  

Application of Active-cooling Temperature Control System in Strapdown Gravimeter

作　　者：王响雷 杨雨[2] 薛正兵 WANG Xiang-lei;YANG Yu;XUE Zheng-bing(Beijing Institute of Aerospace Control Devices,Beijing 100039;China Academy of Aerospace Electronics Technology,Beijing 100094)

机构地区：[1]北京航天控制仪器研究所,北京100039 [2]中国航天电子技术研究院,北京100094

出　　处：《导航与控制》2021年第4期73-79,共7页Navigation and Control

基　　金：国家重点研发计划重点专项(编号:2017YFC0601704)。

摘　　要：针对惯性导航系统内部惯性器件工作温度偏高的问题,以捷联式重力仪为研究对象,基于热电制冷器设计了一套主动制冷型温控系统。它可显著降低惯性器件工作环境温度及其变化率,有利于提升加速度计工作的温度稳定性和长期稳定性。根据系统仿真与实验验证,直接控制对象的温度能够稳定在30℃±0.05℃。与加热型温控系统相比,温差达到了-21.00℃,加速度计的工作环境温度从56.00℃降低到了43.59℃。主动制冷型温控系统能够提升重力仪在高温环境下的环境适应性,且其温度分布更加有利于提升加速度计的输出稳定性。Aiming at the high working temperature of the inertial devices inside INS,an active-cooling temperature control system is designed based on the thermoelectric cooler with strapdown gravimeter as the research object in this paper.It could significantly reduce the working temperature of inertial devices and its change rate,which is conducive to promote the temperature stability and the long-term stability of accelerometers.According to the system simulation and experiment verification,the temperature of the direct control object could be stabilized at 30℃±0.05℃.Compared with the original temperature control system,the temperature difference is -21.00℃.Besides,the working temperature of accelerometers decreases from 56.00℃ to 43.59℃.This system could improve the adaptability of gravimeter in high-temperature environment,and its temperature distribution is more conducive to improve the output stability of accelerometers.

关 键 词：捷联式重力仪 主动制冷型温控系统 热电制冷器 温度场分布 

分 类 号：TP273.2[自动化与计算机技术—检测技术与自动化装置]