photometer

[n] - measuring instrument for measuring the luminous intensity of a source by comparing it (visually or photoelectrically) with a standard source
Found on http://www.webdictionary.co.uk/definition.php?query=photometer

Photometer

A device that measures the intensity of light from a particular source.
Found on http://www.encyclo.co.uk/local/20448

Photometer

An instrument which measures luminous intensity.
Found on http://www.diracdelta.co.uk/science/source/p/h/photometer/source.html

Photometer

Pho·tom'e·ter noun [ Photo- + -meter : confer French photomètre .] (Physics) An instrument for measuring the intensity of light, or, more especially, for comparing the relative intensities of different lights, or their relative illuminating power.
Found on http://www.encyclo.co.uk/webster/P/77

photometer

<apparatus, physics> An instrument for measuring the intensity of light, or, more especially, for comparing the relative intensities of different lights, or their relative illuminating power. ... Origin: Photo: cf. F. Photometre. ... (24 Mar 1998) ...
Found on http://www.encyclo.co.uk/local/20973

photometer

(fo-tom´ә-tәr) a device for measuring the intensity of infrared, ultraviolet, or visible light. a device for testing the sensitivity of the eye to light by determining the light minimum.
Found on http://www.encyclo.co.uk/local/21001

Photometer

• (n.) An instrument for measuring the intensity of light, or, more especially, for comparing the relative intensities of different lights, or their relative illuminating power.
Found on http://thinkexist.com/dictionary/meaning/photometer/

photometer

device that measures the strength of electromagnetic radiation in the range from ultraviolet to infrared and including the visible spectrum. Such ...
Found on http://www.britannica.com/eb/a-z/p/60

photometer

photometer 1. An instrument used in measuring the intensity of light, especially in determining the relative intensity of light from different sources. 2. A device for measuring the intensity of infrared, ultraviolet, or visible light. 3. A device for testing the sensitivity of the eye to light by determining the light minimum.
Found on http://www.wordinfo.info/words/index/info/view_unit/1302/31

photometer

instrument for measuring photometric quantities
Found on http://www.electropedia.org/iev/iev.nsf/display?openform&ievref=845-05-15

photometer

AERONET sun photometer. Image courtesy The NASA Langley COVE Surface Validation Group An instrument for measuring the amount of light. Depending on the purpose, a variety of filters can be used to measure light of specific wavelengths. A photometer can also be used to measure ambient light, or only...
Found on http://www.daviddarling.info/encyclopedia/P/photometer.html

photometer

Type: Term Pronunciation: fō-tom′ĕ-tĕr Definitions: 1. An instrument designed to measure the intensity of light or to determine the light threshold.
Found on http://www.medilexicon.com/medicaldictionary.php?t=68631

photometer

Instrument that measures the intensity of light (electromagnetic radiation in the visible range), usually by comparing relative intensities from different sources. Bunsen's grease-spot photometer of 1844 compares the intensity of a light source with that of a known source by using each source to illuminate one half of a translucent area. Mo...
Found on http://www.talktalk.co.uk/reference/encyclopaedia/hutchinson/m0016629.html

Photometer

A device for measuring luminous intensity or luminance. A photometer employs a photopic filter which has a band pass that is matched to the human eye response. The S.I. units employed are lumens and lux.
Found on http://www.intl-lighttech.com/support/glossary

Photometer

A photometer, generally, is an instrument that measures light intensity or optical properties of solutions or surfaces. Photometers measure: ==History== Before electronic light sensitive elements were developed, photometry was done by estimation by the eye. The relative luminous flux of a source was compared with a standard source. The photometer ...
Found on http://en.wikipedia.org/wiki/Photometer

Photometer

An optical instrument that measures the intensity of light from a source.
Found on http://www.braeunig.us/space/glossary.htm

Photometer

Instrument for measuring light being reflected from a surface. It works by comparing the reflected l
Found on http://www.superglossary.com/Glossary/Entertainment/Photography/

Photometer

Any of a number of atmospheric phenomena which appear as luminous patterns in the sky. They do not d
Found on http://www.superglossary.com/Glossary/Science/Weather/

photometer

instrument for measuring light intensity
Found on http://phrontistery.info/p.html

Photometer

An instrument that measures light emitted by an object.
Found on http://planetfacts.org/space-terms/
No exact match found