EXPLORATION MEASUREMENT SYSTEM OF UNDERGROUND CONDUIT LINE

摘要

PURPOSE: A system for exploring and measuring an underground conduit is provided to simply and accurately measure the curvature, an inside diameter, a position, and a damaged state of an underground conduit and to save data on a real time basis. CONSTITUTION: A system for exploring and measuring an underground conduit comprises a system for exploring and measuring an inside diameter. The system for exploring and measuring the inside diameter precisely measures an inside diameter of an underground conduit. A light emitting sensor is installed in the inner central part of a synthesis measuring device and the infrared rays being emitted from the light emitting sensor and being reflected are measured by a plurality of light receiving sensors installed in the circumference of the synthesis measuring device so that distances per each sensor are measured. The light emitting sensors are installed along the outer circumference of a circular shape of the synthesis measuring device at an equal interval. The measured distances per each light receiving sensor are calculated by a program for automatically converting an inside diameter so that the inside diameter is accurately and precisely obtained.