发明名称 |
Dummy sound absorber representing a seated human for measuring sound absorption power of a theater chair |
摘要 |
There is provied a method for measuring a sound therefor power of a theater chair with a human being seated thereon. The method includes steps of disposing a theater chair which is an object of measurement in a measuring environment; disposing a dummy sound absorber in the theater chair, the dummy sound absorber having a shape in which it is in contact with the theater chair, a sound absorption power and a chair pressing force in such a manner that the dummy sound absorber simulates a human being seated on the theater chair; causing changes in the theater chair which changes are substantially equivalent to a change in the state of the theater chair caused when a human being gets seated on the chair and a change in the sound absorption power of the theater chair caused by seating of the human being thereon; and measuring the sound absorption power of the theater chair. There is also provided a dummy sound absorber used for carrying out this method.
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申请公布号 |
US6463817(B1) |
申请公布日期 |
2002.10.15 |
申请号 |
US19970902907 |
申请日期 |
1997.07.29 |
申请人 |
YAMAHA CORPORATION |
发明人 |
SAKAI TAKESHI;FUKUSHI KAWAKAMI |
分类号 |
A47C1/12;G01H3/00;G01H7/00;G01H15/00;G01H17/00;H04R5/02;H04R29/00;(IPC1-7):B23Q17/00 |
主分类号 |
A47C1/12 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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