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Noise reducing screen devices for in-flow pressure sensors
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Copyright Year | 1997 |
| Description | An acoustic sensor assembly is provided for sensing acoustic signals in a moving fluid such as high speed fluid stream. The assembly includes one or more acoustic sensors and a porous, acoustically transparent screen supported between the moving fluid stream and the sensor and having a major surface disposed so as to be tangent to the moving fluid. A layer of reduced velocity fluid separating the sensor from the porous screen. This reduced velocity fluid can comprise substantially still air. A foam filler material attenuates acoustic signals arriving at the assembly from other than a predetermined range of incident angles. |
| File Size | 509706 |
| Page Count | 6 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_20080004617 |
| Archival Resource Key | ark:/13960/t40s4q62p |
| Language | English |
| Publisher Date | 1997-11-04 |
| Access Restriction | Open |
| Subject Keyword | Acoustics Pressure Sensors Patents Sound Waves Noise Reduction Signal Detectors High Speed Signal Transmission Detection Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Patent |
