Glossary of Infrared Terms - Raytek.com
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Home > IR Education > Glossary of Infrared Terms

Infrared technological terms

 
A B C D E F G I J K L M N O P R S T V W 

A
Absolute Zero

Accuracy

Ambient Derating

Ambient Operating Range

Ambient Temperature

Ambient Temperature Compensation (TAMB)

ASTM

ASTM E 1256

Atmospheric Windows

B
Background Radiation

Blackbody

C
Calibration Procedure

Calibration Source

Carnot Cycle

Celsius or C

Color Temperature

Colored Body or Non Gray Body

Comparison Pyrometry

Current-Loop

D
D:S

Deadband

Detector

Dielectric Withstand (Breakdown Voltage)

Digital Data Bus

Digital Image Processing

Digital Output Interval

DIN Deutsches Institut

Drift

E
EMI/RFI

Emissivity

Environmental Rating

External Reset (Trigger)

F
Fahrenheit or F

Fail-safe Operation

Far Field

Field of View (FOV)

Focal Point or Distance

Full Scale Accuracy

G
Gray Body

I
IEC International Electrotechnical Commission

IEEE-488

IFOV (Instantaneous Field of View)

Image Processing

Indium Antimonide (InSb)

Infrared or Optical Filter

Infrared Radiation

Infrared Thermometer

Insulation Resistance

Interchangeability

Intrinsically Safe

IP Designation

Isolated Inputs, Outputs

Isotherm

J
JIS Japanese Industrial Standard

K
Kelvin or K

L
Lead Selenide (PbSe)

M
Maximum Current

MCT (Mercury Cadmium Telluride) or HgCdTe

Minimum spot size

N
NEMA

NET

NETD (or NE?T)

Neutral Density Filter

NIST Traceability

O
Optical or Infrared Resolution

Optical Pyrometer

Output Impedance

P
Peak Hold

Photondetector or Quantum Detector

Pyroelectric Detector

Pyrometer

R
Radiance Temperature

Radiant Energy

Radiation Thermometer

Rankine or R

Reference Junction or Cold Junction

Reflectance

Reflected Energy Compensation

Relative Humidity

Repeatability

Resolution

Response Time

RS-232

RS-422

RS-423

RS-485

RTD Resistance Temperature Device

S
Sample Hold

Scatter

Set Point

Shock Test

Signal Processing

Silicon (Si) Detector

Size-of-Source Effect

Slope

Spectral Filter

Spectral Response

Spot

Stare or Lag

Storage Temperature

T
Target

Target Size Effect

Teflon®

Temperature

Temperature Coefficient

Temperature Resolution

Temporal Drift

Thermal Detector

Thermal Drift

Thermal Radiator

Thermal Shock

Thermistor

Thermocouple

Thermoelectric (TE) Cooling

Thermogram

Thermopile

Time Constant

Transfer Standard

Transmittance

Triple Point

Two-Color Thermometry

V
Valley Hold

Verification

Vibration Test

W
Warm-Up Time

 
 
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