| 摘要 |
PROBLEM TO BE SOLVED: To perform accurate survey of an object without requiring excessive labor for installation of each acceleration detection unit, in a physical survey system for surveying the object by using a plurality of acceleration detection units. SOLUTION: In this physical survey system including the plurality of acceleration detection units, each acceleration detection unit includes: an acceleration detection part having at least a uniaxial acceleration detection axis, for detecting an acceleration along the acceleration detection axis; a geomagnetic detection part for detecting geomagnetism at a place where the object is surveyed by the physical survey system; and a correction part for setting a prescribed correction axis based on a direction of the geomagnetism detected by the geomagnetic detection part, and correcting an acceleration detected by the acceleration detection part following the prescribed correction axis. Thus, each acceleration corrected by each correction part is matched following each prescribed correction axis set by each correction part included in each acceleration detection unit. COPYRIGHT: (C)2010,JPO&INPIT |
