The spectroradiometer HR-640i from Spectra Vista (SVC) is a field instrument covering 350 – 2500 nm for reflectance and radiance measurements. It uses 640 Linear Array (Si, InGaAs, Extended InGaAs) with FWHM ≤ 3.3 nm @ 700 nm / ≤ 30 nm @ 1500 nm / ≤ 28 nm @ 2100 nm, weighing 8.5 lbs (3.8 kg), for vegetation, soils, and calibration work.
Remote-sensing scientists use this spectroradiometer when they need portable 350 – 2500 nm spectra with the HR-640i resolution.
Overview: Lightweight 350-2500 nm SWIR field spectroradiometer with 640 channels and Bluetooth connectivity for robust field data collection.
Technical Specifications
| Manufacturer | Spectra Vista (SVC) |
|---|---|
| Spectral Range | 350 – 2500 nm |
| Detector Channels | 640 Linear Array (Si, InGaAs, Extended InGaAs) |
| Spectral Resolution (FWHM) | ≤ 3.3 nm @ 700 nm / ≤ 30 nm @ 1500 nm / ≤ 28 nm @ 2100 nm |
| Bandwidth (Nominal) | ≤ 1.5 nm (350-1000 nm) / ≤ 14 nm (1000-1890 nm) / ≤ 10 nm (1890-2500 nm) |
| Minimum Integration | 1 millisecond |
| Field of View (FOV) | 4° standard, 8° or 14° optional, 25° optional armored fiber optic |
| Digitization | 16 bit |
| Weight | 8.5 lbs (3.8 kg) |