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Solar Spectrum Reflectometer Model SSR
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The Solar Spectrum Reflectometer, Model SSR-ER version 6 features a selectable solar measurement spectrum
matched to a variety of standard global and beam normal solar irradiance models. The SSR provides accurate measurements on both diffuse and specular
materials, even second surface reflectors up to 0.25 inches (6.4 mm) thick.
Solar reflectance or absorptance is displayed to
0.001 units, with a repeatability of 0.003 units. For detailed information on
the technical aspects of the instrument, refer to
Tech Notes 79-16, 83-1, 86-1, and 09-1.
Key Features
 | To match various
solar irradiance reflectance values, two “virtual” detectors are added to
the four actual detectors. The four actual detectors cover broad wavelength
bands roughly centered on the UV, Blue, Red and IR. The two virtual
detectors are added by resampling the Red and IR detectors at a lower lamp
color temperature. With effectively six detectors it is possible to generate
a good match to a variety of solar irradiances. For typical global and
direct irradiances, the SSR reflectance readings match calculated
reflectance based on spectrophotometer readings with a bias of less than
0.002 and a standard deviation of about 0.005. |
| Calibration and
adjustment of the measurement spectrum against one of the supplied standards
is accomplished with a single key stroke. Calibration data for up to five
additional standards can be saved in memory, permitting the use of working
standards other than those supplied. |
| A 'hold' function that
freezes the current reading can be initiated from the keypad. This is useful for applications that require the
measurement head to be handheld. It also allows reflectance or absorptance for
different solar irradiance matches to be displayed for a single measurement. |
| Firmware supports a number of operating modes including sample and hold
versus continuous sampling, auto or manual send of reflectance data to the
serial port and emulation of version 5 reflectance readings. |
| Along with the three calibration standards supplied with the instrument,
four additional color tile standards are supplied to track the color
temperature
calibration of the instrument. These tiles are selected to have
monotonically increasing or decreasing reflectance over the wavelength range
of one or more of the detectors. |
Download
Spec Sheet in pdf form
Download Options
information in pdf form
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