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An instrument that measures radiant energy by correlating the radiation-induced change in electrical resistance of a blackened metal foil with the amount of radiation absorbed.
bo′lo·met′ric (bō′lə-mĕt′rĭk) adj.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
(Electronics) a sensitive instrument for measuring radiant energy by the increase in the resistance of an electrical conductor
[C19: from bol-, from Greek bolē ray of light, stroke, from ballein to throw + -meter]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
bo•lom•e•ter(boʊˈlɒm ɪ tər, bə-)
a device for measuring minute amounts of radiant energy by means of changes of resistance in an electric conductor caused by changes in its temperature.
bo`lo•met′ric (-ləˈmɛ trɪk) adj.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
a device used in bolometry.See also: Radiation
-Ologies & -Isms. Copyright 2008 The Gale Group, Inc. All rights reserved.
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|Noun||1.||bolometer - an instrument that measures heat radiation; extremely sensitive|
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