Product Manual

FLIRCM174USERMANUALDocumentIdentifier:CM174‐en‐US_AB
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5.10.4EmissivityFactorsforCommonMaterials
5.10.5Non‐UniformityCorrection
Anon‐uniformitycorrection(orNUC)isanimagecorrectioncarriedoutbythecamerasoftware
tocompensatefordifferentsensitivitiesofdetectorelementsandotheropticaland
geometricaldisturbances
1
.

TheNUCisanautomaticfunctionthattakesplaceperiodically(approximatelyevery2‐3
minutes)orwhenevertheinnercoreofthecameraldetectsa±2
o
Ctemperaturechange.
1.DefinitionfromtheimminentinternationaladoptionofDIN54190‐3(Non‐destructivetesting–Thermographictesting–Part3:Termsand
definitions).

Material Emissivity Material Emissivity
Asphalt 0.90to0.98 Cloth(black) 0.98
Concrete 0.94 Skin(human) 0.98
Cement 0.96 Leather 0.75to0.80
Sand 0.90 Charcoal(powder) 0.96
Soil 0.92to0.96 Lacquer 0.80to0.95
Water 0.92to0.96 Lacquer(matt) 0.97
Ice 0.96to0.98 Rubber(black) 0.94
Snow 0.83 Plastic 0.85to0.95
Glass 0.90to0.95 Timber 0.90
Ceramic 0.90to0.94 Paper 0.70to0.94
Marble 0.94 ChromiumOxides 0.81
Plaster 0.80to0.90 CopperOxides 0.78
Mortar 0.89to0.91 IronOxides 0.78to0.82
Brick 0.93to0.96 Textiles 0.90