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| Brand | Avesta |
|---|---|
| Origin | Russia |
| Model | ASP-IR |
| Instrument Type | Laboratory Benchtop Scanning Spectrometer |
| Spectral Range (nm) | 500–3450 (model-dependent: ASP-IR-1.7: 500–1700 |
| ASP-IR-2.6 | 900–2600 |
| ASP-IR-3.5 | 1200–3450) |
| Resolution (free-space input) | 0.5 nm / 0.8 nm / 1.2 nm |
| Resolution (400 µm fiber input) | 0.7 nm / 1.0 nm / 1.5 nm |
| Scan Speed | up to 400 nm/s |
| Signal-to-Noise Ratio | 5000:1 |
| Optical Design | Czerny-Turner monochromator (f = 150 mm, f/# = 1:13) |
| Input Slit | 15 µm |
| Output Slit | 20 µm |
| Detector | Thermoelectrically cooled InGaAs (ASP-IR-1.7) or二级-cooled InAs (ASP-IR-2.6 & ASP-IR-3.5) |
| NEP | 0.6 nW (0.15 pJ) / 42 nW (2.5 pJ) / 145 nW (7 pJ) |
| Dynamic Range | 3×10⁵ / 7×10⁵ / 6×10⁴ |
| ADC | 16-bit |
| Interface | USB 2.0 |
| Dimensions (mm) | 225×136×81 (ASP-IR-1.7), 295×136×81 (ASP-IR-2.6/3.5) |
| Weight | 2.9 kg / 3.6 kg |
| Trigger Input | Yes (TTL-compatible, for pulsed laser synchronization) |
| Brand | Spectral Products |
|---|---|
| Origin | USA |
| Model | SM301 / SM301-EX |
| Instrument Type | Portable |
| Spectral Range | 1.0–3.0 µm (PbS) or 1.5–5.0 µm (PbSe) |
| Spectral Resolution | 10–30 nm (dependent on slit width and grating) |
| Detector | 256-element PbS or PbSe linear array |
| Pixel Size | 45 µm × 450 µm |
| Pixel Clock | up to 2 MHz |
| Data Output Rate | up to 4 MHz |
| Integration Time | 0.01–200 ms (onboard) |
| Slit Options | 10, 25, 50, 100 µm (default: 25 µm) |
| f/# | 3.5 |
| Cooling | TE-cooled to –15 °C ARO (down to –20 °C ARO optional) |
| Dark Noise | ~20 RMS counts (16-bit, balanced) |
| SNR | 4000:1 |
| Stray Light | < 0.1% |
| Interface | USB 1.1/2.0, 16-bit |
| Software | SM32Pro & SMProMX (Windows XP–10, 32/64-bit), DLL & SDK included |
| Dimensions | 173 × 120 × 98.1 mm |
| Weight | 2.5 kg |
| Optical Coupling | SMA 905 or FC connector |
| Trigger Modes | Free-running or external TTL |
| Brand | SPL |
|---|---|
| Origin | Switzerland |
| Model | ARCoptix |
| Type | Fourier Transform (FTIR) |
| Configuration | Online/Portable |
| Wavelength Range | 2–12 µm |
| Wavenumber Resolution | 4 cm⁻¹ |
| Wavelength Resolution | <2 nm (at 2 µm), <10 nm (at 4 µm), <12 nm (at 6 µm) |
| Signal-to-Noise Ratio | >1000:1 |
| Scan Rate | 1 spectrum/sec (interferogram averaging mode) |
| IR Source | Miniature blackbody emitter (1150 K) |
| Reference Laser | Solid-state 850 nm diode laser |
| Interference Compensation | Built-in dynamic self-compensation |
| Compliance | CE, RoHS, ISO/IEC 17025-compatible operation |
| Brand | ARC |
|---|---|
| Origin | Switzerland |
| Model | FT-NIR Rocket |
| Instrument Type | Portable |
| Spectral Range | 900–2600 nm (11000–3800 cm⁻¹) |
| Resolution | 4 cm⁻¹ (≤0.8 nm @ 1100 nm, ≤2 nm @ 1700 nm, ≤5 nm @ 2600 nm) |
| Wavenumber Accuracy | <1 cm⁻¹ @ 4000 cm⁻¹ (25±5°C) |
| Signal-to-Noise Ratio | >10,000:1 (RMS, full spectrum, single scan) |
| Dynamic Range | >3000:1 |
| Scan Speed | 1 spectrum/sec (averaging mode) |
| A/D Conversion | 24-bit |
| Detector | InGaAs photodiode array |
| Reference Laser | Integrated solid-state 850 nm laser |
| Optical Interface | SMA905, fiber input ≥1 mm core, NA = 0.2 |
| Power Supply | 5 V DC via USB 2.0 |
| Operating Temperature | 10–30 °C |
| Dimensions | 180 × 160 × 80 mm |
| Weight | 850 g |
| Compliance | CE, RoHS, USB-IF certified |
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