SurfaceOptics
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| Brand | SurfaceOptics |
|---|---|
| Origin | USA |
| Model | ET 100 |
| Measurement Principle | Integrating Sphere-Based Directional-Hemispherical Reflectance (DHR) |
| Spectral Range | Six Discrete Bands (1.5–2, 2–3.5, 3–4, 4–5, 5–10.5, 10.5–21 µm) |
| Incident Angles | 20° and 60° from Normal |
| Measurement Time | ≤10 s per acquisition (after 90 s warm-up) |
| DHR Accuracy | NIST-Traceable Calibration |
| Compliance | ASTM E408-22 |
| Power | Rechargeable NiMH Battery Pack (2 units) |
| Operating Temperature | 0–40 °C (non-condensing) |
| Storage Temperature | −25–70 °C |
| Weight | 2.1 kg (with batteries) |
| Sample Geometry Support | Flat, convex (≥6″ radius), concave (≥12″ radius) |
| Data Storage | Internal SD card (FAT32 formatted, user-replaceable) |
| Display | Touch-enabled LCD interface |
| Probe Design | Modular, field-replaceable measurement head |
| IR Source | Cr-Al-Co alloy filament emitter |