摘要
为提高野外测量折射率补偿实时性,研制了1.2 km标准基线环境参数测量系统,该系统采用一种硬件分组和软件并行采集方案,将系统传感器数据采集的正确率提高到98%以上,82个传感器完整循环采集一次的时间小于7 s。计算出传感器7 s采样间隔温度变化量,分析评估折射率补偿结果,为野外标准基线测量提供科学的视角,量化寻找基线理想的测量时段,使延时温差小于0.05℃,高精度测距仪基线测量时的折射率修正误差控制在5×10^-8内。
To improve field measurement accuracy,the 1.2 km standard baseline an environmental parameters automatic measurement system is developed,and a hardware grouping and software parallel acquisition scheme is adopted.The accuracy rate of sensor data acquisition in the system is more than 98%,and the time of complete cycle acquisition of 82 sensors is less than 7 s.Calculate the temperature variation of sensor 7 s sampling interval,analyze and evaluate the refractive index compensation results,provide a scientific perspective for field standard baseline measurement,quantify the ideal measurement period of baseline,make the delay temperature difference less than 0.05℃,the refractive index correction error of high precision rangefinder in baseline measurement is controlled within 5×10^-8.
作者
刘学德
缪东晶
张京燕
李连福
李建双
张福民
李萍
LIU Xue-de;MIAO Dong-jing;ZHANG Jing-yan;LI Lian-fu;LI Jian-shuang;ZHANG Fu-min;LI Ping(Precision Instruments&Opto-Electronics Engineering,Tianjin University,Tianjin 300072,China;National Institute of Metrology,Beijing 100029,China)
出处
《计量学报》
CSCD
北大核心
2020年第8期897-902,共6页
Acta Metrologica Sinica
基金
国家重点研发计划(2017YFF0204901,2017YFE0108900)
国家质量监督检验检疫总局技术改造项目(2015NIM02)。
关键词
计量学
折射率修正
激光测距
环境参数
标准基线
自动测量系统
实时性
数据并行采集
metrology
refractive index correction
laser ranging
environmental parameter
automatic measurement system
standard baseline
real-time
data parallel acquisition
