SEM of grooves in LP record
Numéro d’image : 11821584
| Scanning electron micrograph (SEM) of the surface of a long-playing record (L.P.),showing a plan view of 10 grooves. The L.P. is made by pressing the recording information onto a softened (by heating) PVC disc. The straight groove (3rd from right) indicates an almost continuous note. The white flecks are particles of dust. The stylus sits nicely in the V-shaped groove,and lateral vibrations are picked up by the stylus and transduced by a moving-coil or moving-magnet cartridge into an electrical signal,which passes through an amplifier to be heard on loudspeakers. Magnification: X 30 at 35mm,X 220 at 8x10-inch size | |
| Licence : | Droits gérés |
| Crédit: | Science Photo Library / Brain, Dr. Tony |
| Taille de l’image : | 5067 px × 3528 px |
| Model Release : | Non requis |
| Property Release : | Non requis |
| Restrictions : | - |
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