microdensitometer

enUK

microdensitometer

(mÿ-kroh-den-să-tom -ĕ-ter) An optical instrument that measures and records small changes in the transmission density on a photographic plate, such as the faint features in a spectrum. The plate, mounted on a carriage, is moved through a light beam. A photomultiplier measures the amount of light transmitted by the plate and the output is fed to a chart recorder or computer.

microdensitometer

[¦mī·krō‚den·sə′täm·əd·ər] (spectroscopy) A high-sensitivity densitometer used in spectroscopy to detect spectrum lines too faint on a negative to be seen by the human eye.

单词	microdensitometer
释义	microdensitometer enUK mi·cro·den·si·tom·e·ter M0272725 (mī′krō-dĕn′sĭ-tŏm′ĭ-tər)n. An extremely sensitive densitometer used to measure optical densities of photographic plates or film to detect small details, such as spectral lines invisible to the human eye. microdensitometer enUK microdensitometer (mÿ-kroh-den-să-tom -ĕ-ter) An optical instrument that measures and records small changes in the transmission density on a photographic plate, such as the faint features in a spectrum. The plate, mounted on a carriage, is moved through a light beam. A photomultiplier measures the amount of light transmitted by the plate and the output is fed to a chart recorder or computer. microdensitometer [¦mī·krō‚den·sə′täm·əd·ər] (spectroscopy) A high-sensitivity densitometer used in spectroscopy to detect spectrum lines too faint on a negative to be seen by the human eye.
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microdensitometer