| 摘要 |
PROBLEM TO BE SOLVED: To easily and accurately measure the various shapes of spaces. SOLUTION: A positioning laser beam is irradiated in a longitudinal direction of an object to be measured to position a laser range finder approximately in parallel with the longitudinal direction of the object to be measured (S12). The orientation of the laser range finder is adjusted in such a way that a laser beam irradiated from the laser range finder may be in a reference direction at a right angle to the direction of irradiation of the positioning laser beam (S13). A measuring laser beam is irradiated to the object to be measured in the reference direction to perform a first measurement (S14). The laser range finder is rotated in a horizontal direction by a prescribed angle from the reference direction to irradiate the measuring laser beam to the object to be measured and perform a second measurement (S15). The laser range finder is rotated in the direction opposite to that at the second measurement by a prescribed angle from the reference direction to irradiate the measuring laser beam to the object to be measured and perform a third measurement (S16). A minimum measurement value is adopted as a measurement value of a cross section of space (S17). COPYRIGHT: (C)2009,JPO&INPIT
|
