Measurement of acoustic velocity fields |
| |
| Authors: | C. A. Greated |
| |
| Affiliation: | Physics Department, Edinburgh University King's Buildings, Mayfield Road, Edinburgh |
| |
| Abstract: | A laser Doppler system is described using photon correlation signal analysis with a microcomputer control, which can be used to measure velocities in sound waves. The free field infront of a loudspeaker has been measured to show both spatial and temporal variations. Comparisons with velocities predicted from loud level recordings show close agreement. |
| |
| Keywords: | Laser acoustics velocities correlation |
|
|
