| 摘要 |
PROBLEM TO BE SOLVED: To provide a technique capable of reducing failure in detection of a defective for realizing a highly reliable inspection. SOLUTION: This internal pressure inspection device for a sealed container for inspecting an internal pressure of a sealed container according to a hammering test is provided with a hammering test head 3 giving an electromagnetic shock to a can C for generating a hammering test sound, a microphone 2 converting the hammering test sound into an electric signal, a sound volume processing part 8 for finding the hammering test sound volume, and a microcomputer 9 determining that the sealed container has an internal pressure within a specification when its hammering test sound frequency is included within a specified frequency range and its hammering sound volume is included within a specified intensity range.
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