measuring bolometer

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• Bolometer — Bo*lom e*ter, n. [Gr. ? a stroke, ray + meter.] (Physics) An instrument for measuring minute quantities of radiant heat, especially in different parts of the spectrum; called also {actinic balance}, {thermic balance}. S. P. Langley. [1913… …   The Collaborative International Dictionary of English

• bolometer — ☆ bolometer [bō läm′ət ər ] n. [< Gr bolē, ray, lit., something thrown < ballein, to throw (see BALL2) + METER] Physics a very sensitive instrument for measuring and recording the intensity of small amounts of radiant energy bolometric… …   English World dictionary

• Bolometer — A bolometer is a device for measuring the energy of incident electromagnetic radiation. It was invented in 1878 by the American astronomer Samuel Pierpont Langley.It consists of an absorber connected to a heat sink (area of constant temperature)… …   Wikipedia

• bolometer — bolometric /boh leuh me trik/, adj. bolometrically, adv. /boh lom i teuhr, beuh /, n. Physics. a device for measuring minute amounts of radiant energy by determining the changes of resistance in an electric conductor caused by changes in its… …   Universalium

• Measuring instrument — Captain Nemo and Professor Aronnax contemplating measuring instruments in Twenty Thousand Leagues Under the Sea …   Wikipedia

• Measuring tools — Because human senses like vision, hearing, touch, heat/cold receptors are subjective which means that they are not very accurate nor reliable science do not use them in measurements. Instead, measuring tools are used. For example, one may look at …   Wikipedia

• measuring device — noun instrument that shows the extent or amount or quantity or degree of something • Syn: ↑measuring instrument, ↑measuring system • Hypernyms: ↑instrument • Hyponyms: ↑accelerometer, ↑actinometer, ↑ …   Useful english dictionary

• measuring instrument — noun instrument that shows the extent or amount or quantity or degree of something • Syn: ↑measuring system, ↑measuring device • Hypernyms: ↑instrument • Hyponyms: ↑accelerometer, ↑actinometer, ↑ …   Useful english dictionary

• measuring system — noun instrument that shows the extent or amount or quantity or degree of something • Syn: ↑measuring instrument, ↑measuring device • Hypernyms: ↑instrument • Hyponyms: ↑accelerometer, ↑actinometer, ↑ …   Useful english dictionary

• bolometer —   n. instrument measuring small amounts of radiant heat electrically.    ♦ bolograph,   n. photograph made with a bolometer.    ♦ bolometric, a …   Dictionary of difficult words

• bolometer — 1. An instrument for determining minute degrees of radiant heat. 2. An obsolete instrument for measuring the force of the heartbeat as distinguished from the blood pressure. [G. bole, a throw, a sunbeam, + metron, measure] * * * bo·lom·e·ter bō… …   Medical dictionary