To provide a non-destructive inspection device of a concrete structure, capable of continuously inspecting release position or the corrosion state of a metal body, such as a reinforcing rod or a steel frame, even in the case that requires inspection over a long distance and capable of shortening an inspection time.
The non-destructive inspection device of the concrete structure is equipped with an induction heating coil 16 for heating the metal body, such as the reinforcing rod or steel frame in the concrete structure by an eddy current, a heater having an inverter device 17, a thermography for detecting the state of the concrete structure by imaging the surface temperature distribution measured by a measuring instrument 22, such as an infrared camera or the like for measuring the surface temperature distribution of the concrete structure, a coil moving truck 18 for moving the induction heating coil along the concrete structure and a moving truck 23 for a measuring instrument for moving the measuring instrument 22 along the concrete structure. The measuring instrument moving truck 23 is controlled so as to always track the coil moving truck 18, while being delayed by a definite time.
SHIGEMATSU BUNJI
OSHITA EIKICHI
OSHITA EIKICHI