Apparatus and method for measuring the acoustic properties of acoustic absorbers
US6119521A · kind A · utility
6Cited by
25References
42Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 20, 1998 |
| Grant date | Sep 19, 2000 |
| Priority date | — |
| Expiry date | Apr 20, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2291/2694
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A device for measuring the acoustic absorption properties of materials such as liners for jet engines has a first housing, an acoustic driver configured to provide acoustic energy to the first housing, a second housing attached to the first housing, and an acoustic driver configured to provide acoustic energy to the second housing. Acoustic sensors are used to measure the acoustic energy emitted from the two housings and to measure the absorption of each of the housings.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.