HERA-Ext-SWIR is a compact and rugged hyperspectral camera that enables an innovative approach to spectral imaging in the extended short wave infrared (SWIR: 900-2500 nm.
With its unique and patented technology based on time-domain Fourier Transform detection, HERA provides an exceptional spatial-spectral resolution and a superior sensitivity in low-light illumination conditions.
Working principle:
HERA is based on a Fourier Transform (FT) approach: the data-cube is acquired in the time-domain, by step-scanning a compact ultra-stable interferometer in front of the InGaAs sensor.
The software then automatically computes an FT at each and every pixel of the image, providing the final hyperspectral data-cube.
As a result of an FT, the spectrum at each pixel is a continuous curve, so the number of bands is virtually unlimited, not defined by the hardware.
In our Polyespectral Imaging Application you can learn more on this technology, the features and advantages.
Key features of the hyperspectral camera NRS-HERA-Ext-SWIR:
- 900 - 2300 nm
- Spatial resolution 320 x 256 px. All pixels are true image pixels. No interpolation is used.
- High spectral resolution
- Compact and lightweight; portable and plug and play
- Exports data in ENVI format
- Powerful and user friendly software (measurement & data analysis)
- Very low dark current
- Ideal for stationary applications
The high throughput ensures high-quality data even at the lowest light dose.
Typical applications of the extended SWIR hyperspectral imaging systems:
- Remote sensing
- Identification and sorting of plastics, minerals and other materials
- Recycling
- Medical and biosciences; phamaceuticals
- Agriculture and food quality (agri-food)
- Pharmaceuticals
- Art conservation
- Forensics
- General applied and basic research
Technical specifications of the NRS-HERA-Ext-SWIR:
| Spectral range | 900 - 2300 nm |
| Sensor spatial resolution | 320 x 256 pixels |
| User adjustable spectral resolution | <5 nm @ 900 nm
<30 nm @ 2300 nm |
| Sensor | T2SL photodiode array with CTIA ROIC, 4-stage TE cooler |
| Number of bits | 14 bits |
| Software interface | Labview based |
| Number of spectral bands | ∞* |
| Field of view | 16 degrees |
| Working distance | 110 cm - ∞ |
| Dimensions | 240 x 170 x 120 mm |
| Weight | 5 Kg |
| Minimum Computer Requirements | 16 GB RAM, SSD drive suggested |
* HERA is FT spectroscopy based instrument and number of spectral bands is software selectable and independent from measurement time
Customizations upon request, including compatibility with commercial microscope systems.
Comparison summary of all our hyperspectral cameras and systems in the SWIR:
| HSG-BlackIndustry-SWIR-1.7
| HSG-BlackIndustry-SWIR-1.7-Max | NRS-HERA-SWIR | NRS-HERA-Ext-SWIR
|
| Technology | Line scanning (push-broom) | Interferometric, Fourier Transform (FT) based |
| Key aspects | In-line, machine vision applications | Low light, high sensitivity, static applications |
| Spectral range | 900-1730 nm | 900 - 1700 nm | 900 - 2300 nm |
| Spatial resolution | 640 px | 1280 px | 640 x 512 px | 320 x 256 px |
| Spectral resolution | < 9 nm (25 μm slit) | <5 nm @ 900 nm, <20 nm @ 1700 nm | <5 nm @ 900 nm, <30 nm @ 2300 nm |
| Sensor | InGaAs | InGaAs | T2SL |
| Lens | C-mount | Fixed, FoV 16 degrees |
| Working distance | na | 1 m - ∞ | 110 cm - ∞ |
| Dimensions | 60 x 80 x 145 mm | 220 x 160 x 105 mm | 240 x 170 x 120 mm |
| Weight | 2 Kg | 2.85 Kg | 5 Kg |
Check here all our solutions in polyspectral imaging (hyperspectral and multispectral):
- visible-NIR (400-900 nm)
- SWIR (900-1700/2500 nm)
