Blown tungsten filament. Coloured scanning electron micrograph (SEM) of a blown tungsten filament from the electron gun of a scanning electron microscope. The shape of the blown ends of the filament can help to diagnose the cause of failure. A properly worn filament should have two evenly tapered ends,but this filament failed early. The rounded shape of each blown end indicates that over-heating was the most likely cause of failure. Magnification: x250 when printed at 10 centimetres wide | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library |
Bildgröße: | 4517 px × 3888 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |