Wuhan Guide IR136 Manual de usuario descargar pdf (Pagina 82)

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

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Re Certification

Retesting of equipment to return it to an original standard or calibration. In infrared, it is spoken of in two

ways. If the infrared system is being used to produce calibrated data, it must be recalibrated to a secondary

standard regularly. When high-pressure containers are used to hold the cryogen, they must be re-certified

to hold the required pressure, either every three or every five years. See the notice on the cylinder.

Reflectance(Reflectivity)

The amount of total radiance which can be attributed to reflected energy. Usually expressed as a

percentage of total energy.

Repeatability

A measure of accuracy and stability for an instrument. The capability of an instrument to duplicate a

previous answer to a previous experiment within a limited margin of error.

Remote Sensing

To obtain a reading or measurement from a distance, without physical contact between the meter and the

object to be measured.

Resolution

A measure of the capability of a system to resolve small objects against the viewing field. Measured as a

ratio of angles.

Responsively

A measure of detector performance, measures the value of the detector output change for a given applied

thermal power change.

Rotor

Same as scan wheel. one method of creating a field scanning mechanism using a reflective polygon,

spinning on its axis.

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Wuhan Guide IR136 Manual de usuario Pagina 82