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Hyperspectral Imaging Sensors

CONCENTRIC IMAGING

Headwall's HYPERSPEC® family of hyperspectral imaging sensors are small, light, and rugged. The simple but elegant all-concentric design uses precisely-engineered master-quality holographic diffraction gratings and mirrors to deliver high signal-to-noise, high spectral and spatial resolution, and a wide, aberration-corrected field of view.

LINE-SCANNING

HYPERSPEC® sensors are line-scanning instruments (sometimes called pushbroom) that collect reflected light through an image slit. One row of spatial pixels is collected per frame as motion occurs, with each pixel containing full spectral data. Motion can be accomplished in two ways: either as an airborne deployment (UAV, aircraft, or satellite) or stationary (where motion is accomplished beneath the sensor, such as a food inspection line). A third option is also available where pan-and-tilt or rotary stages allow a fixed-location sensor to scan a stationary object (such as a piece of artwork, or a mine face for geological applications).

A hyperspectral data cube thus contains complete X, Y, and wavelength data that can be analyzed and managed through Headwall's powerful applications software.

LENSES

Among several lens options are Headwall's telecentric VNIR and SWIR versions.

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SPECTRAL RANGES

Headwall's standard hyperspectral ranges are shown below, with Midwave-IR (MWIR) available upon request.

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Radiometric Calibration

Because airborne-acquired spectral data is influenced by several variables, Headwall offers very precise and thorough radiometric calibration services to its customers. 

These variables include atmospheric absorption and scattering, sensor-target-illumination geometry, sensor calibration, and image data processing procedures. 

Contact us to learn more about this valuable service, which is applicable to any of the airborne sensors below.

 

Hyperspectral Imaging Sensors 

Nano-Hyperspec®

  • Spectral range 400-1000nm (VNIR)
  • 270 spectral bands
  • 640 spectral bands
  • FWHM slit image 6nm
  • Max frame rate 350Hz
  • 480GB internal data storage
  • Typical applications: airborne & ground remote sensing
  • data sheet

 

Micro-Hyperspec®

  • Spectral ranges:
    • VNIR (400-1000nm)
    • NIR (900-1700nm)
    • Extended VNIR (550-1700nm)
    • SWIR (900-2500nm)
  • Typical applications: airborne, satellite, and ground remote sensing, advanced machine vision, lab
  • data sheet

 

Co-Aligned VNIR-SWIR

  • Spectral range: VNIR + SWIR (400-2500nm)
  • Spectral pixels: 270 VNIR; 267 SWIR
  • Spatial pixels: 640
  • FWHM slit image: 6nm VNIR, 8nm SWIR
  • Max frame rate: 350Hz VNIR; 200Hz SWIR
  • Internal data storage
  • Typical applications: Airborne and ground remote sensing that require coverage between 400-2500nm
  • Data sheet

 

High-Resolution Fluorescence

  • Spectral range: 670-780nm
  • Spectral resolution (FWHM): 0.1 - 0.2nm
  • SNR 120:1 unbinned
  • Spectral bands: 2,160
  • Spatial pixels: 1,600
  • Typical applications: Remote sensing, particularly environmental monitoring where high resolution chlorophyll fluorescence measurements are needed.
  • Data sheet

Hyperspec UV-VIS

  • Spectral range 250-500nm
  • Spectral bands: 409
  • Spatial pixels: 1,100
  • Frame rate: 30-50Hz
  • FWHM slit image: 1.4nm
  • Typical applications: process monitoring, Lab, scanning kits
  • Data sheet

Hyperspec® MV

  • Spectral range: 400-1000nm
  • 270 spectral bands
  • 640 spatial pixels
  • Max frame rate: 485Hz
  • FWHM slit image: 6nm
  • Typical applications: Advanced machine vision (food inspection & grading, recycling)
  • Data sheet