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photodetector |
Also found in: Wikipedia | 0.03 sec. |
photodetectorA device that senses light. It uses the principle of photoconductivity, which is exhibited in certain materials that change their electrical conductivity when exposed to light. See photoelectric, photocell and photodiode. photodetector [¦fōd·ō·di′tek·tər] (electronics) A detector that responds to radiant energy; examples include photoconductive cells, photodiodes, photoresistors, photoswitches, phototransistors, phototubes, and photovoltaic cells. Also known as light-sensitive cell; light-sensitive detector; light sensor photodevice; photodevice; photoelectric detector; photosensor. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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Frontline troops depend on extraordinarily sensitive optical detectors in systems that test the air for anthrax or other harmful agents. Standard features include Allen-Bradley PLC and Panel-mate touchscreen, modem for remote diagnostics, programmable platen positioning, programmable oven zones, oven-sag optical detector, and variable-frequency electric drive for high precision and repeatability. Scientists with the ARS Sugarbeet and Bean Research Unit, East Lansing, MI, sample apples with a prototype optical detector. |
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