SECTION MEASURING APPARATUS FOR TUNNEL

PURPOSE:To enable accurate and quick measurement of the section of a tunnel over a wide range in the direction of excavation without moving a measuring device, by providing a mirror for projecting a laser light in a wide range of angle and a CCD camera. CONSTITUTION:A laser light 7 emitted from a la...

Ausführliche Beschreibung

Bibliographische Detailangaben

1. Verfasser:	SHIKAYAMA AKIRA
Format:	Patent
Sprache:	eng
Schlagworte:	GYROSCOPIC INSTRUMENTS MEASURING MEASURING ANGLES MEASURING AREAS MEASURING DISTANCES, LEVELS OR BEARINGS MEASURING IRREGULARITIES OF SURFACES OR CONTOURS MEASURING LENGTH, THICKNESS OR SIMILAR LINEARDIMENSIONS NAVIGATION PHOTOGRAMMETRY OR VIDEOGRAMMETRY PHYSICS SURVEYING TESTING
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