| 摘要 |
<p>PROBLEM TO BE SOLVED: To check the situation of cavity production etc. by furnishing a plurality of sensors each fitted with a signal receiving part for the refected waves of the electromagnetic waves having penetrated a concrete structure member, subjecting the received signal from each sensor to a process to turn into two-dimensional information, and displaying the resultant signal in two-dimensional plane information. SOLUTION: From each of the sensors (a) under control of a control unit (b), electromagnetic waves are emitted right under toward the inside of a concrete structure (g). The reflected waves from the concrete structure (g) are received by the sensors (a), and the received reflection signals are fed to a personal computer (d) through the control unit (b). A radar system (k) is moved in the main scanning direction, and the control unit (b) emits the depth information in the aux. scanning direction to the personal computer (d) from time to time about the main scanning direction. On the basis of the fed data, the personal computer (d) emits a two-dimensional plane image for each step of depth. The personal computer (d) displays the section image cut in the main scanning direction about the aux. scanning direction.</p> |
