from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. Plural form of phototransistor.
Sorry, no etymologies found.
This movement blocks the light except where it continues to shine through the enlarged holes, and the pattern of light that the phototransistors receive tells them what routes the equipment should try in order to complete the call.
The cards are stacked in the box so that the light shines through the perforations onto the phototransistors.
It has three main elements: a light source, a set of about 1,000 perforated metal cards and a bank of light-sensitive phototransistors -- one corresponding to each perforation in the card.
The S11154-01CT features a lower output-current variation than typical phototransistors, while also exhibiting a low output deviation when different colour temperature sources are used.
After trying a variety of approaches, the team homed in on silicon-germanium (SiGe) phototransistors, which currently can process 10 GHz signals, and have the potential to handle much higher bandwidths.
A synchronous tracker uses shaded phototransistors to follow the sun from east to west daily.