Wikia

Psychology Wiki

Changes: Radiometry

Edit

Back to page

(New page: {{ExpPsy}} In optics, '''radiometry''' is the field that studies the measurement of electromagnetic radiation, including visible light. Note that light is also measured usi...)
 
 
Line 2: Line 2:
 
In [[optics]], '''radiometry''' is the field that studies the [[measurement]] of [[electromagnetic radiation]], including [[visible light]]. Note that light is also measured using the techniques of [[photometry_(optics)|photometry]], which deal with brightness as perceived by the human eye, rather than absolute power.
 
In [[optics]], '''radiometry''' is the field that studies the [[measurement]] of [[electromagnetic radiation]], including [[visible light]]. Note that light is also measured using the techniques of [[photometry_(optics)|photometry]], which deal with brightness as perceived by the human eye, rather than absolute power.
   
Radiometry is important in [[astronomy]], especially [[radio astronomy]], and is important for [[Earth remote sensing]]. The measurement techniques categorized as ''radiometry'' in optics are called [[Photometry (astronomy)|''photometry'']] in some astronomical applications, contrary to the optics usage of the term.
+
 
 
 
{{SI radiometry units}}
 
{{SI radiometry units}}

Latest revision as of 18:07, April 16, 2007

Assessment | Biopsychology | Comparative | Cognitive | Developmental | Language | Individual differences | Personality | Philosophy | Social |
Methods | Statistics | Clinical | Educational | Industrial | Professional items | World psychology |

Cognitive Psychology: Attention · Decision making · Learning · Judgement · Memory · Motivation · Perception · Reasoning · Thinking  - Cognitive processes Cognition - Outline Index


In optics, radiometry is the field that studies the measurement of electromagnetic radiation, including visible light. Note that light is also measured using the techniques of photometry, which deal with brightness as perceived by the human eye, rather than absolute power.


SI radiometry units

[edit]</small>

Quantity Symbol SI unit Abbr. Notes
Radiant energy Q joule J energy
Radiant flux Φ watt W radiant energy per unit time, also called radiant power
Radiant intensity I watt per steradian W·sr−1 power per unit solid angle
Radiance L watt per steradian per square metre W·sr−1·m−2 power per unit solid angle per unit projected source area.

Sometimes confusingly called "intensity".

Irradiance E watt per square metre W·m−2 power incident on a surface.

Sometimes confusingly called "intensity".

Radiant exitance / Radiant emittance M watt per square metre W·m−2 power emitted from a surface.

Sometimes confusingly called "intensity".

Spectral radiance Lλ
or
Lν
watt per steradian per metre3 or

watt per steradian per square metre per hertz

W·sr−1·m−3
or

W·sr−1·m−2·Hz−1

commonly measured in W·sr−1·m−2·nm−1
Spectral irradiance Eλ
or
Eν
watt per metre3 or
watt per square metre per hertz
W·m−3
or
W·m−2·Hz−1
commonly measured in W·m−2·nm−1


External linksEdit


ca:Radiometria
de:Radiometrie
pl:Radiometria
ru:Энергетическая фотометрическая величина
This page uses Creative Commons Licensed content from Wikipedia (view authors).

Around Wikia's network

Random Wiki