What does photometer mean?

Definitions for photometer
foʊˈtɒm ɪ tərpho·tome·ter

This dictionary definitions page includes all the possible meanings, example usage and translations of the word photometer.

Princeton's WordNet

  1. photometernoun

    measuring instrument for measuring the luminous intensity of a source by comparing it (visually or photoelectrically) with a standard source

  2. light meter, exposure meter, photometernoun

    photographic equipment that measures the intensity of light

Wiktionary

  1. photometernoun

    Any of several instruments used to measure various aspects of the intensity of light.

  2. photometerverb

    To measure some aspect of light (from a star) using a photometer.

Wikipedia

  1. Photometer

    A photometer is an instrument that measures the strength of electromagnetic radiation in the range from ultraviolet to infrared and including the visible spectrum. Most photometers convert light into an electric current using a photoresistor, photodiode, or photomultiplier.

ChatGPT

  1. photometer

    A photometer is a scientific instrument used to measure the intensity of light or its properties such as brightness and absorption. It works by comparing the light from two sources, one of which is known while the other is unknown. This instrument is utilized in various fields such as physics, photography, astronomy, and environmental science.

Webster Dictionary

  1. Photometernoun

    an instrument for measuring the intensity of light, or, more especially, for comparing the relative intensities of different lights, or their relative illuminating power

  2. Etymology: [Photo- + -meter: cf. F. photomtre.]

Wikidata

  1. Photometer

    In its widest sense, a photometer is an instrument for measuring light intensity or optical properties of solutions or surfaces. Photometers are used to measure: ⁕Illuminance ⁕Irradiance ⁕Light absorption ⁕Scattering of light ⁕Reflection of light ⁕Fluorescence ⁕Phosphorescence ⁕Luminescence

Chambers 20th Century Dictionary

  1. Photometer

    fō-tom′e-tėr, n. an instrument for measuring the intensity of light, esp. for comparing the amount of light coming from different sources.—adjs. Photomet′ric, -al.—n. Photom′etry, the measurement of the intensity of light. [Gr. phōs, phōtos, light, mētron, a measure.]

The Standard Electrical Dictionary

  1. Photometer

    An apparatus for measuring the intensity of light emitted by a given lamp or other source of illuminating power. They may be classified into several types. Calorimetric or Heat Photometers act by measuring relatively the heat produced by the ether waves (so-called radiant heat) emitted by the source. The accuracy of the instrument is increased by passing the rays through an alum solution. A thermopile, or an air thermometer, may be used to receive the rays. Chemical Photometers. In these the light falls upon sensitized photographic paper. The depth of coloration is used as the index of illuminating power. Direct Visual Photometers. These include Rumford's Shadow Photometer, Bunsen's Bar Photometer, and Wheatstone's Bead Photometer, in which the light is estimated by direct visual comparison of its effects. Optical Photometers. These include Polarization Photometers, in which the light is polarized; Dispersion Photometers, in which a diverging lens is placed in the path of the rays of light so as to reduce the illuminating power in more rapid ratio than that of the square of the distance. Selenium Photometers, in which the variations in resistance of selenium as light of varying intensity falls upon it is used as the indicator of the intensity of the light. Jet Photometers, for gas only, in which the height of a flame under given conditions, or the conditions requisite to maintain a flame of given height, is used to indicate the illuminating power. The subject of photometers has acquired more importance than ever in view of the extensive introduction of the electric light. (See Candle, Standard--Carcel--Violé's Standard--and Photometers of various kinds.)

How to pronounce photometer?

How to say photometer in sign language?

Numerology

  1. Chaldean Numerology

    The numerical value of photometer in Chaldean Numerology is: 6

  2. Pythagorean Numerology

    The numerical value of photometer in Pythagorean Numerology is: 9

Popularity rank by frequency of use

photometer#10000#79820#100000

Translations for photometer

From our Multilingual Translation Dictionary

Get even more translations for photometer »

Translation

Find a translation for the photometer definition in other languages:

Select another language:

  • - Select -
  • 简体中文 (Chinese - Simplified)
  • 繁體中文 (Chinese - Traditional)
  • Español (Spanish)
  • Esperanto (Esperanto)
  • 日本語 (Japanese)
  • Português (Portuguese)
  • Deutsch (German)
  • العربية (Arabic)
  • Français (French)
  • Русский (Russian)
  • ಕನ್ನಡ (Kannada)
  • 한국어 (Korean)
  • עברית (Hebrew)
  • Gaeilge (Irish)
  • Українська (Ukrainian)
  • اردو (Urdu)
  • Magyar (Hungarian)
  • मानक हिन्दी (Hindi)
  • Indonesia (Indonesian)
  • Italiano (Italian)
  • தமிழ் (Tamil)
  • Türkçe (Turkish)
  • తెలుగు (Telugu)
  • ภาษาไทย (Thai)
  • Tiếng Việt (Vietnamese)
  • Čeština (Czech)
  • Polski (Polish)
  • Bahasa Indonesia (Indonesian)
  • Românește (Romanian)
  • Nederlands (Dutch)
  • Ελληνικά (Greek)
  • Latinum (Latin)
  • Svenska (Swedish)
  • Dansk (Danish)
  • Suomi (Finnish)
  • فارسی (Persian)
  • ייִדיש (Yiddish)
  • հայերեն (Armenian)
  • Norsk (Norwegian)
  • English (English)

Word of the Day

Would you like us to send you a FREE new word definition delivered to your inbox daily?

Please enter your email address:


Citation

Use the citation below to add this definition to your bibliography:

Style:MLAChicagoAPA

"photometer." Definitions.net. STANDS4 LLC, 2024. Web. 26 May 2024. <https://www.definitions.net/definition/photometer>.

Discuss these photometer definitions with the community:

0 Comments

    Are we missing a good definition for photometer? Don't keep it to yourself...

    Image or illustration of

    photometer

    Credit »

    Free, no signup required:

    Add to Chrome

    Get instant definitions for any word that hits you anywhere on the web!

    Free, no signup required:

    Add to Firefox

    Get instant definitions for any word that hits you anywhere on the web!

    Browse Definitions.net

    Quiz

    Are you a words master?

    »
    a disposition that is confused or nervous and upset
    A exacerbate
    B descant
    C lucubrate
    D fluster

    Nearby & related entries:

    Alternative searches for photometer: