Sphère intégrante de 50cm pour mesure de réflectance
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The ISM-50-R-V01 integrating sphere light meter is used for measurement of light reflectance, the degree of the scattered reflectance and calculation of the regular reflectance proportion. Sample illumination is done from an 8° angle. The regular or scattered reflected light from the sample is captured by the integrated sphere. This 8/d geometry corresponds to the specifications in DIN 5036 section 3. the light source is set to a 2856 K color temperature (standard illuminant type A). The high-quality silicon photodiode of the photometric detector is carefully matched onto the V(λ) responsivity function through a multi-layer spectral correction filter. Integrating spheres with a large diameter such as the ISM-50-R offer a wide detection angle for scattered reflected light.
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- Measurement range: 0.5% to 100% with 0.01% measurement value resolution
- Dynamic range: 200 (dark signal measurement 0.5% with -8° and a very low scattering mirror at the measurement port
- Measurement uncertainty: ± 0.5% incl. The uncertainty of the calibration standards
- Reproducibility/repeatability: ± 0.1*[1-log10rg]%; rg = regular/hemispherical
- Integrating sphere: 500mm diameter with barium sulfate coating (ODP97)
- Measurement ports: 50mm diameter with knife-edge
- Detector: Photometric detector head with 1cm² light-sensitive surface
- Light source: Radiation bundle with -8° direct alignment to the center of the measurement port and alignment of the reflection rays -8° port
- Color temperature: 2856K +/-20K (Standard illuminant A)
- Lamp: LH-100-UV, 100W/12V quartz halogen lamp
- Optometer: Similar to the X1-RM optometer. ISM-50-R-V01 Firmware.
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