Relative irradiance measurements, Color measurements, Relative or absolute irradiance calibration (see – Ocean Optics OOIIrrad-C User Manual

Page 63: Color, Measurements

6: Taking Measurements

Relative Irradiance Measurements

►

Procedure

To take a relative irradiance measurement using the OOIIrrad-C application,

1. Set

the

Spectral Graph Mode to Relative Irradiance.

2. Flip

the

Scan switch to ON. It is recommended to store new dark scan frequently.

3. Verify your calibration data by scanning the calibration lamp once and determining that the

resulting spectrum matches a normalized black body curve of the lamp’s known color
temperature.

Color Measurements

Emissive color measurements require a spectrometer, which has been calibrated to take irradiance
readings (either relative or absolute). When Spectral Graph Mode (on the OOIColor/OOIIrrad screen)
is set to uW/cm^2/nm, the results of an absolute irradiance scan is used. For all other modes (Scope,
Reflectance, Relative Irradiance), the relative irradiance results are used.

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