| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a method for inspecting a mold, in which permeability of a mold is easily and accurately measured so as to determine the quality thereof.SOLUTION: An ultrasonic burst wave US is transmitted from a transmission probe 2 toward a mold 1 in response to a command from a pulser-receiver 4, the ultrasonic burst wave US having passed through the mold 1 is received by a reception probe 3, and the quality of permeability of the mold is determined by a personal computer 5 via the pulser-receiver 4 on the basis of an amplitude of the received wave.</p> |
