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photoelectric | Pertaining to the electrical effects of light or other radiation; for example, emissions of electrons. |
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photoelectric absorption (rt) | A process by which electromagnetic radiation imparts energy to matter. |
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photoelectric cell | - Фотоэлектрический элемент
- A device incorporated in an electric circuit; in response to light that falls on the cell, the electrical output or the resistance varies; used in measuring devices and in control devices that depend on illumination level or the interruption of a light beam.
- A device for measuring light intensity that works by converting light falling on, or reach it, to electricity, and then measuring the current; used in photometers.
- A device for measuring light intensity; used in photometers.
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photoelectric cell. |
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photoelectric cell. phrygian marble |
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photoelectric cell; photocell |
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photoelectric control | A control function which is actuated by a change in incident light. piazza 1. a public open space or square surrounded by buildings. 2. a term occasionally |
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photoelectric effect | - Emission of free electrons from a surface bombarded by sufficiently energetic photons. such emissions may be used in an illuminance meter, calibrated in lux. interaction of photons with atoms in which the full energy of the photon is absorbed by an orbital electron, removing the electron from the atom.
- Emission of electrons from a surface bombarded by sufficiently energetic photons. such emissions may be used in an illuminance meter and can be calibrated in lux.2,6 315
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photoelectric laser level |
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photoelectric response |
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photoelectric scanner | Фотоэлектрическое сканирующее устройство |
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photoelectric semiconductor device |
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photoelectric smoke detector | A sensor used to initiate a fire alarm when smoke reduces the light received by a photoelectric cell in a device containing a light source; most effective in the early detection of fires in the smoldering stage. |
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photoelectric smoke detector. |
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photoelectricity |
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