Difference between revisions of "Bolometer"
From Glossary of Meteorology
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| − | <div class="definition"><div class="short_definition">( | + | <div class="definition"><div class="short_definition">(''Also called'' actinic balance.) An instrument that measures the [[intensity]] of [[radiant energy|radiant energy]] by employing a thermally sensitive electrical resistor; a type of [[actinometer]].</div><br/> <div class="paragraph">In meteorological applications, two identical, blackened, thermally sensitive electrical resistors are used in a Wheatstone bridge circuit. Radiation is allowed to fall on one of the elements, causing a change in its [[resistance]]. The change is a measure of the intensity of the [[radiation]].</div><br/> </div> |
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Latest revision as of 16:30, 25 April 2012
bolometer
(Also called actinic balance.) An instrument that measures the intensity of radiant energy by employing a thermally sensitive electrical resistor; a type of actinometer.
In meteorological applications, two identical, blackened, thermally sensitive electrical resistors are used in a Wheatstone bridge circuit. Radiation is allowed to fall on one of the elements, causing a change in its resistance. The change is a measure of the intensity of the radiation.
