Record Details
A device for investigating wave phonomena by means of sound
ScholarsArchive at Oregon State University
| Field | Value |
|---|---|
| Title | A device for investigating wave phonomena by means of sound |
| Names |
Jenne, Everett Knowlton
(creator) Dempster, R. R. (advisor) |
| Date Issued | 1951-04-19 (iso8601) |
| Note | Graduation date: 1951 |
| Abstract | Sound waves are very convenient for the investigation of all wave phenomena with the exception of polarization. They are particularly useful in connection with microwaves because the latter's wave length can be easily duplicated with sound waves, making it possible to obtain the same diffraction pattern for both when confronted by the same metal obstacles. Thus, if a diffraction grating is chosen as a means of determining the wave length of microwaves, the wave length of the sound which produces the same diffraction pattern as the microwaves will be the wave length of the latter. Using sound with a wave length of three centimeters, the diffraction pattern for a grating of five slits was experimentally determined and compared with the calculated patterns for Fresnel and for Fraunhofer diffraction. The sound was produced in the back of a sound-absorbing box by either a Galton whistle or a small speaker driven by an oscillator; detection was by a microphone whose signal appeared on an oscilloscope. |
| Genre | Thesis/Dissertation |
| Topic | Wave mechanics |
| Identifier | http://hdl.handle.net/1957/52464 |
