| 单词 |
photodetector |
| 释义 |
photodetector
photodetector (ˈfəʊtəʊdɪˌtɛktə) n (General Physics) physics a device used to detect or measure light or other electromagnetic energypho•to•de•tec•tor (ˈfoʊ toʊ dɪˌtɛk tər)
n. any device that converts light into an electric signal photoelectrically. [1945–50]
photodetector
photodetector (foh-toh-di-tek -ter) Any electronic device designed to respond to, i.e. detect, photons of light or other radiation. Examples include the photomultiplier and CCD.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. 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
pho·to·de·tec·tor (fō'tō-dĕ-tĕk'tŏr) A device in a spectrophotometer that responds to photons in a manner usually proportional to the number of photons striking its light-sensitive surface. ThesaurusSeephotocell |
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