| 摘要 |
PROBLEM TO BE SOLVED: To provide a structure inspection device which brings vibration sensor into direct contact with the measuring plane, to directly convert vibration generated on the measuring plane into voltage, without going through any media such as air, quantify the vibration generated on the measuring plane, and then to objectively evaluate the conditions of the inside of a concrete structure, irrespective of the ambient noise or the shape of hammer. SOLUTION: This structure inspection device is equipped with an exciter for generating elastic waves on the measuring object of a concrete structure, a vibration sensor made to be in contact with surface of the measuring object for detecting the element of elastic vibration generated on surface of the measuring object by the exciter within a prescribed frequency range, and a display unit for indicating the maximum magnitude of output signal from the vibration sensor. It is also provided with a striking section 141 arranged in chassis which can excite the surface of the measuring object, a chamber 142 for housing the striking section, an injector with a switch to supply pressure medium into the chamber if the switch turns on, and a trigger mechanism 147 arranged in the chassis to set the chamber switch on, when the distance between the chamber and surface of the measuring object reaches the predefined value. COPYRIGHT: (C)2006,JPO&NCIPI
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