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Emissivity of Most Common Materials

From Raytek Corporation
 

 
Emissivity is the measure of an object's ability to emit infrared energy. Emitted energy indicates the temperature of the object. Emissivity can have a value from 0 (shiny mirror) to 1.0 (blackbody). Most organic, painted, or oxidized surfaces have emissivity values close to 0.95. Majority of Raytek sensors have adjustable
Products & Services
Temperature sensors are measurement devices that infer temperature by sensing some physical characteristic (i.e. resistance, emf or thermal radiation). Search by Specification | Learn more about Temperature Sensors
Noncontact infrared temperature sensors absorb ambient infrared (IR) radiation given off by a heated surface. They are used in applications where direct temperature measurement is not possible. Search by Specification | Learn more about Noncontact Infrared Temperature Sensors
Thermal imagers detect heat patterns in the infrared wavelength (1 micron to 100 micron) spectrum. Search by Specification | Learn more about Thermal Imagers
Temperature instruments use contact or noncontact methods to measure temperature. Products include dial, digital, industrial and laboratory thermometers; temperature probes, indicators, and sensors; RTD elements and transmitters; and thermistors, thermocouples, thermopiles, and thermal switches.  Search by Specification | Learn more about Temperature Instruments
Product Announcements
Raytek Corporation - Marathon MM 3M Infrared Thermometer
The Marathon MM 3M measures low-to-medium temperatures with more accuracy regardless of changing emissivity. This innovative sensor was specifically designed to meet temperature measurement challenges... (read more)
Tempil, Inc. - Infrared Thermometer - Tempil IRT-16 Xtreme Duty
From the world's most trusted name in accurate, reliable temperature measurement technology...Tempil. Introducing the Tempil IRT-16 Xtreme Duty, the industry's most advanced, non-contact infrared... (read more)
Raytek Corporation - Raytek GS110 Infrared Process Imaging System
The new Raytek GS110 Process Imaging System for Low Emissivity (Low-E) glass was specifically designed to monitor one-side coated flat glass and address a rapidly increasing need as Low-E glass... (read more)
Isotech North America - Blackbody Calibrator
Blackbody Calibrator, 970 PEGASUS R - High Temperature Blackbody Source 150°C to 1200°C (2192°F) Includes External Reference Probe Ideal for Raytek ST, MX & CI Series thermometers... (read more)
Exergen Corp. - DX Series Precision IR Thermometer
Introducing the new DX-Series, a family of affordable, high-precision, emissivity-free infrared thermometers. A continuation of the popular D-Series family of handheld IR microscanners, the DX-Series... (read more)
Raytek Corporation - Compact GP Series
The GP Series is a versatile, two-piece temperature monitoring system that combines a compact monitor and an infrared sensing head. The heart of the system, the 1/8 DIN GP monitor, provides advanced... (read more)
Topics of Interest
nderstanding an object's emissivity, or its characteristic "radiance" is a critical component in the proper handling of infrared measurements. Concisely, emissivity is the ratio of radiation emitted... (Read More)
III Surface Coatings and Finishes Surfaces can either naturally or after treatment be made to absorb and emit radiant energy at specific rates corresponding to the spectrum of radiation. Some of... (Read More)
There has been little discussion about infrared ("IR") thermography's ability to determine the temperatures of heating liquids and gas within piping assemblies. Determining accurate emissivity values... (Read More)
Table of Total Emissivity The following tables are presented for use as a guide when making infrared temperature measurements with the OMEGASCOPE or other infrared pyrometers. The total emissivity (... (Read More)
Accurately evaluating either gas absorption or emission is a very complicated matter that involves quantum physics. The spectral nature of gaseous matter attributes to this complexity. To avoid... (Read More)
See more product announcements for Temperature Sensors
Low Cost General Purpose Temperature Sensor

Low Cost General Purpose Temperature Sensor
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Surface Sensor with Mounting Hole

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RoHS Compliant NTC thermistors

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