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photometer

/foh-tom-i-ter/US // foʊˈtɒm ɪ tər //UK // (fəʊˈtɒmɪtə) //

光度计,测光仪,照度计,测光表

Related Words

Definitions

n.名词 noun
  1. 1

    Optics.

    • : an instrument that measures luminous intensity or brightness, luminous flux, light distribution, color, etc., usually by comparing the light emitted by two sources, one source having certain specified standard characteristics.

Synonyms & Antonyms

Examples

  • Prof. Zenger's differential photometer that we shall finally cite is an improvement upon Bunsen's.

  • The photometer, preferably one of the Lummer-Brodhun form, is set up on a gallery or bench.

  • There is no other way of measuring the exposure than by the photometer or personal experience, and the latter is by far the best.

  • A number of measurements of the illuminating power of an electric lamp were rapidly made during the lecture with this photometer.

  • An application of the law of intensity is made in using a simple (Bunsen) photometer.