ASD FieldSpec® 4 Hi-Res: High Resolution Spectroradiometer
8 nm SWIR resolution ideal for geological studies and atmospheric research
The ASD FieldSpec® 4 Hi-Res is a high resolution spectroradiometer designed for faster, more precise spectral data measurements for a wide array of remote sensing applications.
Overview
The 3 nm VNIR, 8 nm SWIR spectral resolution of the ASD FieldSpec® 4 Hi-Res spectroradiometer provides superior spectral performance across the full range solar irradiance spectrum (350 – 2500 nm). The enhanced spectral resolution in the SWIR range (1000 – 2500 nm) is particularly useful for detecting and identifying compounds with narrow spectral features in the longer wavelengths such as alteration mineralogy and gases for atmospheric analysis.
Additionally the 8 nm resolution meets or exceeds the spectral resolution of most hyperspectral sensors making the ASD FieldSpec 4 Hi-Res spectroradiometer an excellent choice for sensor validation and calibration, as well as ground truthing and building spectral libraries.
Like all ASD FieldSpec spectroradiometers, the ASD FieldSpec 4 Hi-Res can be used as a high resolution spectrometer for very accurate contact reflectance measurements.
Key applications
The ASD FieldSpec 4 Hi-Res spectrometer can be used in many industry applications, including:
Asbestos detection
Atmospheric research
Camouflage
Concrete and aggregates
Cosmetics
Crop science
Food and agricultural products
Forestry
General material identification
Geologic mapping
Hyperspectral image ground truthing
Landscape ecology
Multispectral image ground truthing
Pharmaceuticals and nutraceuticals
Photonics
Pigment / color analysis vegetation
Plant physiology
Plastics / petrochemicals
Quantitative analysis
Sensor and radiometric calibration
Snow and ice research
Soil mineralogy
Spectral library creation
Water body / column analysis
技术指标
Spectral Range
350-2500 nm
Spectral Resolution
3 nm @ 700 nm
8 nm @ 1400/2100 nmSpectral sampling (bandwidth)
1.4 nm @ 350-1000 nm
1.1 nm @ 1001-2500 nmScanning Time
100 milliseconds
Stray light specification
VNIR 0.02%, SWIR 1 & 2 0.01%
Wavelength reproducibility
0.1 nm
Wavelength accuracy
0.5 nm
Maximum radiance
VNIR 2X Solar, SWIR 10X Solar
Channels
2151
Detectors
VNIR detector (350-1000 nm): 512 element silicon array
SWIR 1 detector (1001-1800 nm): Graded Index InGaAs Photodiode, Two Stage TE Cooled
SWIR 2 detector (1801-2500 nm): Graded Index InGaAs Photodiode, Two Stage TE CooledInput
1.5 m fiber optic (25° field of view). Optional narrower field of view fiber optics available.
Noise Equivalent Radiance (NEdL)
VNIR 1.0 X10-9 W/cm2/nm/sr @700 nm
SWIR 1 1.4 X10-9 W/cm2/nm/sr @ 1400 nm
SWIR 2 2.2 X10-9 W/cm2/nm/sr @ 2100 nmWeight
5.44 kg (12 lbs)
Calibrations
Wavelength, absolute reflectance, radiance*, irradiance*. All calibrations are NIST traceable. (*radiometric calibrations are optional)
Computer
Windows® 7 64-bit laptop (instrument controller)
Warranty
One year full warranty including expert customer support
商品属性 [波长范围] 350-2500 nm [光学分辨率] 3 nm @ 700 nm 8 nm @ 1400/2100 nm