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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.

[Greek bolē, ray; see gwelə- in Indo-European roots + -meter.]

bo′lo·met′ric (bō′lə-mĕt′rĭk) adj.
bo′lo·met′ri·cal·ly adv.


(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]
bolometric adj
ˌboloˈmetrically adv
boˈlometry n


(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.
[1880–85; < Greek bol(ḗ) ray + -o- + -meter]
bo`lo•met′ric (-ləˈmɛ trɪk) adj.
bo`lo•met′ri•cal•ly, adv.


a device used in bolometry.
See also: Radiation
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.bolometer - an instrument that measures heat radiationbolometer - an instrument that measures heat radiation; extremely sensitive
measuring device, measuring instrument, measuring system - instrument that shows the extent or amount or quantity or degree of something
References in periodicals archive ?
Thus, the HFI bolometers, though operating in absolute mode, can receive thermal photons from the spacecraft itself much of which is in a 50 K environment.
Abancens is one of the scientists working on the ROSEBUD project (an acronym for Rare Objects SEarch with Bolometers UndergrounD), an international collaborative initiative between the Institut d'Astrophysique Spatiale and the University of Zaragoza, which is focusing on hunting for dark matter in the Milky Way.
Fifty-two bolometers are part of one set of detectors, the High Frequency Instrument.
On the thermal side are thermocouples, thermopiles, bolometers, and pneumatic (Golay) detectors.
FIBRE is the first astronomical demonstration of both TES submillimeter bolometers and SQUID multiplexers.
Using exquisitely sensitive, heat-detecting instruments known as bolometers, Pierre de Marcillac and his colleagues at the Institute for Space Astrophysics in Orsay, France, chanced upon signs that more than 100 bismuth-209 atoms had each spat out a helium nucleus--also known as an alpha particle--to become a lighter atom of thallium-205.
Because the NIST system uses bolometers (devices that detect and measure small amounts of radiation), it is a significantly more powerful detection tool than conventional passive imaging systems.
We count 25+ sensors and actuators in production or in development for mobile applications, including MEMS accelerometers, MEMS gyroscopes, magnetometers, 6-axis e-compasses, 6-axis IMU combos, 9-axis combo solutions, silicon microphones, microspeakers, pressure sensors, humidity/temperature sensors, BAW filters and duplexers, MEMS switches and variable capacitors, silicon MEMS oscillators/resonators, micromirrors for picoprojectors, microdisplays, MEMS autofocus, IR sensors and micro bolometers, biochemical detectors & gas sensors, MEMS touchscreen, MEMS joystick, radiation detectors, MEMS fuel cells, energy harvesting, UV sensors, ultrasonic sensors and more
In these studies, a blackbody source was used at liquid nitrogen temperatures to test FIRAS performance, but not with its real bolometers in place.
The LMP2012WGLQMLV dual operational amplifier is ideal for satellite applications such as attitude and orbital controls, sun and inertial sensors, gyroscopes, pressure sensors, static earth sensing, bolometers and earth observation systems.
Cost decreases for micro bolometers should open the way to new markets (thermography, automotive).