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| Brand | ASD |
|---|---|
| Origin | USA |
| Model | TerraSpec 4 Hi-Res |
| Spectral Range | 350–2500 nm |
| Detector | InGaAs |
| Resolution | 3 nm @ 700 nm |
| Sensitivity | 75 photons/count |
| SNR | VNIR 9000:1 @ 700 nm |
| SWIR1 9000 | 1 @ 1400 nm |
| SWIR2 4000 | 1 @ 2100 nm |
| Dynamic Range | 7.5×10⁹ |
| Stray Light | VNIR 5000:1 (0.02%) |
| NIR 10000 | 1 (0.01%) |
| Brand | ASD |
|---|---|
| Origin | USA |
| Model | FieldSpec 4 Hi-Res NG |
| Spectral Range | 350–2500 nm |
| Detector Configuration | Si (350–1000 nm), TE-cooled InGaAs (1001–1800 nm), TE-cooled InGaAs (1801–2500 nm) |
| Spectral Resolution | 3 nm @ 700 nm, 6 nm @ 1400 nm & 2100 nm |
| Sampling Interval | 1.4 nm (350–1000 nm), 1.1 nm (1001–2500 nm) |
| Stray Light | <0.02% (VNIR), <0.01% (SWIR 1 & 2) |
| Wavelength Accuracy | ±0.5 nm |
| Wavelength Repeatability | ±0.1 nm |
| Integration Time | 100 ms typical |
| NEΔL (VNIR) | 1.0 × 10⁻⁹ W/cm²/nm/sr @ 700 nm |
| NEΔL (SWIR 1) | 8.0 × 10⁻⁹ W/cm²/nm/sr @ 1400 nm |
| NEΔL (SWIR 2) | 8.0 × 10⁻⁹ W/cm²/nm/sr @ 2100 nm |
| Radiance Dynamic Range | Up to 2× solar (VNIR), 10× solar (SWIR) |
| Calibration Traceability | NIST-traceable radiometric, reflectance, irradiance, and colorimetric calibrations available |
| Fiber Input | 1.5 m, 25° FOV (lens options available) |
| Channels | 2151 spectral bands |
| Weight | 5.44 kg |
| Warranty | 12 months comprehensive coverage with technical support |
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