Wuhan Guide IR136 Manual de usuario descargar pdf (Pagina 67)

Thermografie in der Theorie und Praxis (INTERNET: www.irPOD.net / e-MAIL: [email protected] ) © Bernd Schindel 2007

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Calibration

The process of adjusting an instrument to read accurately. or in some cases, accurately constructing a

table of errors so that the instrument reading can be adjusted off-line or post measurement to correlate the

reading accurately to the true value.

Calorie

The amount of thermal energy required to raise one gram of water one degree-Celsius at 15 degrees C.

Celsius (Centigrade)

A scale for measuring temperature where absolute cold is -273.2 degrees C, the melting point of water (ice

point) is 0 degrees C, and the boiling point of water is 100 degrees C.

Chopper

A means of optically blocking and unblocking the detector sensor repetitively. A chopper normally consists

of a round, flat, pancake-like blade rotated by a motor. The blade is cut so that a regular pattern of

openings and blockages pass in front of the detector.

Collimated Color Scale

Traveling together in parallel, as in parallel light rays. An area of the display screen set aside to display the

full range of available colors. Used to demonstrate how each color is assigned a temperature or radiation

level.

Color Thermograph

A display of temperature differences which has been enhanced by the assignment of discrete color values

to each of the thermal intensity levels. This is considered the normal visual display mode for a thermal

video system.

Conduction

The transfer of energy through a solid without motion of the conducting solid as a whole.

Conduction Band

The energy band above the energy gap in a semiconductor. Electrons with enough energy to reach the

conduction band can freely move within the semiconductor in response to externally applied potential

gradients.

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Wuhan Guide IR136 Manual de usuario Pagina 67