发明名称 |
METHOD AND DEVICE FOR DETERMINING THE ACOUSTIC PROPERTIES OF A CHANNEL FOR CONDUCTING SOUND |
摘要 |
The invention relates to a method and a device for determining the acoustic properties of a channel for conducting sound. At least parts of the sound-conducting channel (1) can be assembled and measured in a separate measuring device. The analysis is carried out by determining the variation in value and phase of a series of fundamentals and a selected number of their harmonic waves, from one end of the sound-conducting channel (1) to the other. Correction values (k, DELTA phi ) are determined from the deviations between the first and subsequent measuring processes in relation to the variations in value and phase of the same frequencies.
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申请公布号 |
WO9927332(A1) |
申请公布日期 |
1999.06.03 |
申请号 |
WO1998EP07250 |
申请日期 |
1998.11.12 |
申请人 |
FILTERWERK MANN + HUMMEL GMBH;FUESSER, ROLF |
发明人 |
FUESSER, ROLF |
分类号 |
F02M35/12;(IPC1-7):G01H3/04;G01H15/00;F02B27/00 |
主分类号 |
F02M35/12 |
代理机构 |
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代理人 |
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地址 |
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