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| True Azimuth Transfer and Check between Indoor and Outdoor |
| DENG Xiang-rui1,FAN Bai-xing2,LI Jian-shuang1,LI Lian-fu1 |
1. National Institute of Metrology, Beijing, 100029, China;
2. Institute of Surveying and Mapping, Information Engineering University, Zhengzhou, Henan 450052, China |
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Abstract True azimuth is the key value to achieve traceability and verification of north-finder instrument, it must be ensured accurate and reliable.Astronomical azimuth calibration equipment is designed, which includes outdoor and indoor astronomical reference benchmark (consisting of two collimators and two flat mirrors).Considering the transfer and check of astronomical azimuth between indoor and outdoor, the specific methods are put forward to solution the metrology problem.
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［1］于来法.陀螺定向测量.北京:解放军出版社,1988.
［2］GB/T 17943—2000 大地天文测量规范［S］.
［3］陈继华,黄剑波,牟爱国,等.一种新的经纬仪自准直方法［J］.测绘科学技术学报,2006,23 (5):338-344.
［4］GB/T 17942—2000 国家三角测量规范［S］. |
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2014, Vol. 35 
