20,345
edits
Changes
Created page with "==Key Stage 4== ===Meaning=== right|300px|thumb|A picture of an '''infra-red thermometer'''. An '''infra-red thermometer''' is a Measuring I..."
==Key Stage 4==
===Meaning===
[[File:InfraredThermometer.png|right|300px|thumb|A picture of an '''infra-red thermometer'''.]]
An '''infra-red thermometer''' is a [[Measuring Instrument|measuring instrument]] which can detect the [[Infra-red]] [[radiation]] given off by a surface.
===About Infra-red Thermometers===
: '''Infra-red thermometers''' can be used to [[reading|read]] the [[temperature]] of the surface of an [[object]] without touching it.
: '''Infra-red thermometers''' use the [[Black Body Radiation|black body radiation]] [[spectrum]] of an [[object]] to tell its [[temperature]].
: '''Infra-red thermometers''' do not directly detect the [[temperature]] of an [[object]] as different colour surfaces [[emit]] different amounts of [[infra-red]] [[radiation]].
: The [[accuracy]] of an '''infra-red thermometer''' for [[measuring]] [[temperature]] depends on how close the [[object]] is to a perfect [[Black Body Radiation|'black body']].
===Meaning===
[[File:InfraredThermometer.png|right|300px|thumb|A picture of an '''infra-red thermometer'''.]]
An '''infra-red thermometer''' is a [[Measuring Instrument|measuring instrument]] which can detect the [[Infra-red]] [[radiation]] given off by a surface.
===About Infra-red Thermometers===
: '''Infra-red thermometers''' can be used to [[reading|read]] the [[temperature]] of the surface of an [[object]] without touching it.
: '''Infra-red thermometers''' use the [[Black Body Radiation|black body radiation]] [[spectrum]] of an [[object]] to tell its [[temperature]].
: '''Infra-red thermometers''' do not directly detect the [[temperature]] of an [[object]] as different colour surfaces [[emit]] different amounts of [[infra-red]] [[radiation]].
: The [[accuracy]] of an '''infra-red thermometer''' for [[measuring]] [[temperature]] depends on how close the [[object]] is to a perfect [[Black Body Radiation|'black body']].