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9 terms
Photonics Dictionary
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photoelectric cells x
cesium 134
An isotope of cesium that emits negative beta particles and has a half-life of 2.19 years; its applications include photoelectric cells and developmental ion propulsion systems.
cesium chloride
Colorless crystals used in photoelectric cells and for photosensitive material in cathodes.
flying spot microscope
A microscope that uses a flying spot scanner, directed through the eyepiece, as a light source to determine the features of a transparent specimen. The flying spot is modulated by the varying density...
oximeter
A device that uses a photoelectric cell to determine the level of oxygenation in the blood.
PEC
photoelectric cell
photoelectric control
The control of an instrument or electrical circuit by the current produced by varying radiation incident to a photoelectric cell.
photoelectric pyrometer
An instrument used to measure the temperature of a source through the use of photoelectric cells to detect and measure the intensity of the light emitted by the source.
phototelegraphy
A document-transmitting process that uses a cylinder that rotates the document to be scanned and detected by a photoelectric cell. The cell transforms the light into electrical energy that may be...
sunlight recorder
An instrument consisting essentially of a photoelectric cell filtered to respond to a specified wavelength region, an amplifier of sufficient gain to provide power enough to control movement of a...
Photonics Dictionary
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