Measuring system for conforming of manhole by measuring separated frequency of each position

• Main Author: YANG SUNG CHUL
• Format: Patent
• Language: English; Korean
• Published: 18.04.2022
• Subjects: MEASURING; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS; MEASURING LENGTH, THICKNESS OR SIMILAR LINEARDIMENSIONS; PHYSICS; TESTING

In accordance with the present invention, a system for measuring the inside of a manhole through independent frequency radiation in accordance with selective arrangement includes: an external measuring unit formed in a longitudinal direction, having an internal space formed therein, and measuring th...