
Figure 15: Mirror M4.
The accessory is shipped from in a protective wooden case. The accessory should be
stored in the case when the DRA is not being used.
Detector
The detector chamber attaches to the bottom of the base plate and is located directly
underneath the integrating sphere.
Reflectance standards
The DRA is shipped with three Spectralon reflectance standards. If a standard is
calibrated, a calibration certificate that lists the reflectance data across the wavelength
spectrum will be included. The typical reflectance values may be very close to the actual
spectral reflectance of the standards, but the typical data is not traceable to NIST. The
uncalibrated standards should be loaded at the reference and sample ports to protect the
internal surfaces of the sphere when the accessory is installed but not in use.
Cleaning instructions for uncalibrated reflectance standards are provided when the
standards are purchased. Calibrated standards can be returned to Labsphere for
recalibration yearly, or whenever the reflective surface of the standard is soiled or
damaged.
You may want to convert the reflectance values for your standards to a file compatible
with Cary WinUV. This can be accomplished by copying the calibrated or uncalibrated
reflectance data and pasting it into a spreadsheet such as Microsoft EXCEL. Save the
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