Photometer
id:
photometer-281-13254359
title:
Photometer
text:
A photometer is an instrument that measures the strength of electromagnetic radiation in the range from ultraviolet to infrared and including the visible spectrum. Most photometers convert light into an electric current using a photoresistor, photodiode, or photomultiplier. Photometers measure: Illuminance
Irradiance
Light absorption
Scattering of light
Reflection of light
Fluorescence
Phosphorescence
Luminescence Historically, photometry was done by estimation, comparing the luminous flux of a
brand slug:
wiki
category slug:
encyclopedia
description:
Instrument to measure light intensity
original url:
https://en.wikipedia.org/wiki/Photometer
date created:
date modified:
2023-11-18T08:43:50Z
main entity:
{"identifier":"Q690868","url":"https://www.wikidata.org/entity/Q690868"}
image:
{"content_url":"https://upload.wikimedia.org/wikipedia/commons/3/36/Fotometer.jpg","width":2000,"height":1746}
fields total:
13
integrity:
15