| 摘要 |
<P>PROBLEM TO BE SOLVED: To faithfully and inexpensively reproduce a change in traveling sound. Ž<P>SOLUTION: At least two rail members 80a and 80b on which a railroad vehicle model travels are disposed on a base 6c while a gap is formed between the rail members, and are fixed to the base 6c through sleepers 100 and 102 disposed off the vicinity of the gap. A piezoelectric element 16 is disposed near the gap, and detects vibration sound generated when the railroad vehicle model travels. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
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