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测距测角对激光跟踪仪精度影响的实验与分析 被引量:3
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作者 饶建华 梁静 《城市勘测》 2019年第4期160-162,共3页
激光跟踪仪是高精度测量领域用于位置测量的主力仪器,其测量精度主要受到角度和距离测量误差影响。本文以FAROXI跟踪仪和CCR1.5″反射镜为例,介绍了测距、水平角和垂直角对激光跟踪仪精度影响的实验方案,并对实验结果进行了分析。结果表... 激光跟踪仪是高精度测量领域用于位置测量的主力仪器,其测量精度主要受到角度和距离测量误差影响。本文以FAROXI跟踪仪和CCR1.5″反射镜为例,介绍了测距、水平角和垂直角对激光跟踪仪精度影响的实验方案,并对实验结果进行了分析。结果表明:激光跟踪仪测距精度较高,与干涉仪的差值均方根仅为4.3μm,水平角测量误差随着距离的增大增加,垂直角测量误差随着角度的增大增加。 展开更多
关键词 激光跟踪仪 双频干涉仪 实验装置 角度影响分析 测距影响分析
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Research Progress on elderly quality of life and influencing factors
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作者 DING Xue 《International English Education Research》 2016年第5期10-12,共3页
While the rising number of elderly population has caused widespread concern in society, the quality of life of elderly has become a hot research topic too. According to the current study, theoretical research still ne... While the rising number of elderly population has caused widespread concern in society, the quality of life of elderly has become a hot research topic too. According to the current study, theoretical research still needs to be strengthened.Compared with the theoretical research, emperical research is significantly increased.Scholars have taken a full disscussion to the quality of life of the elderly, in addition, the influential factors also be analysed from different angle. From the perspective of quality of life, this paper reviewed the different kind way ofthe definition,the research of the elderly' quality of life as well as the influencing factors. 展开更多
关键词 ELDERLY Quality of life Influencing factors
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