radiometer


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Related to radiometer: Microwave radiometer

ra·di·om·e·ter

 (rā′dē-ŏm′ĭ-tər)
n.
1. A device that measures the intensity of radiant energy, consisting of a partially evacuated glass bulb containing lightweight vertical vanes, each blackened on one side, suspended radially about a central vertical axis to permit their revolution about the axis as a result of incident radiation. Also called light mill.
2. An instrument that detects electromagnetic radiation.

ra′di·o·met′ric (-ō-mĕt′rĭk) adj.
ra′di·om′e·try n.

radiometer

(ˌreɪdɪˈɒmɪtə)
n
(General Physics) any instrument for the detection or measurement of radiant energy
radiometric adj
ˌradiˈometry n

ra•di•om•e•ter

(ˌreɪ diˈɒm ɪ tər)

n.
1. an instrument for demonstrating the transformation of radiant energy into mechanical work.
2. an instrument for detecting small amounts of radiant energy.
[1870–75]
ra`di•o•met′ric (-oʊˈmɛ trɪk) adj.
ra`di•om′e•try, n.

ra·di·om·e·ter

(rā′dē-ŏm′ĭ-tər)
A device used to detect and measure radiation. Radiometers consist of a glass bulb containing a partial vacuum in which four diamond-shaped paddles are mounted on a central axis. Each paddle is black on one side and silvery on the other. When radiation, such as sunlight, strikes them, the black side absorbs radiation and the silvery side reflects it, resulting in a temperature difference between the two sides that causes the paddles to spin. The stronger the radiation, the faster the paddles spin.

radiometer

an instrument for measuring the intensity of radiant energy, composed of vanes which rotate at speeds proportionate to the intensity of the energy source. — radiometric, adj.
See also: Sun
an instrument for measuring the intensity of radiant energy, composed of vanes which rotate at speeds proportionate to the intensity of the energy source. — radiometric, adj.
See also: Instruments
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.radiometer - meter to detect and measure radiant energy (electromagnetic or acoustic)radiometer - meter to detect and measure radiant energy (electromagnetic or acoustic)
Crookes radiometer - electromagnetic radiometer consisting of a small paddlewheel that rotates when placed in daylight
meter - any of various measuring instruments for measuring a quantity
radiomicrometer - radiometer that is extremely sensitive
Rayleigh disk - an acoustic radiometer consisting of a light disk suspended from a quartz thread; when exposed to a progressive sound wave its torque can measure velocity
References in periodicals archive ?
The new ACCU-CAL 50V radiometer is simple to operate and offers repeatable measurement of visible light.
Microwave radiometer systems; design and analysis, 2d ed.
The labels have been designed for UV measuring in applications where a radiometer is not possible, such as web printing, sheet fed printing, and 3-D curing.
How To Select a Radiometer describes the different styles of UV monitoring choices and specifies which types benefit each application.
The four measurement services are based on: (1) the laser optimized cryogenic radiometer (LOCR) and free field collimated laser light; (2) the C-series isoperibol calorimeter and free-field collimated laser light; (3) the electrically calibrated pyroelectric radiometer and fiber-coupled laser light; (4) the pyroelectric wedge trap detector, which measures light from a lamp source and monochromator.
NORDIC BUSINESS REPORT-16 January 2004-Danaher Corporation receives go-ahead for acquisition of Radiometer A/S(C)1994-2004 M2 COMMUNICATIONS LTD http://www.
A new line of plastic capillary samplers, called "safeClinitubes," has been designed by Radiometer America of Westlake, Ohio, to eliminate the risk of medical-staff injury and contamination sometimes associated with glass samplers while maintaining high performance standards.
This combination radiometer and probe can be supplied with a variety of filters for performing NIST traceable measurements from the UV to near IR.
To calibrate the instrument, two or more temperature levels must be introduced to the radiometer.
Led by Dong Wu at NASA's Goddard Space Flight Center, IceCube takes a new spin on measuring cloud ice: the deployment of the first 874 GHz submillimeter high-frequency microwave radiometer on a nanosatellite.
These also include a profiling microwave radiometer sensitive to the atmospheric temperature structure.