FieldSpec 4 Wide-Res Field Spectroradiometer

The high performance, cost effective spectroradiometer solution

The 3 nm VNIR, 30 nm SWIR spectral resolution of the FieldSpec® 4 Wide-Res field spectroradiometer, is a cost-effective solution for the analysis of any material with broad spectral features. General vegetation analysis and water column studies are common application areas that are associated with broader spectral features. The FieldSpec 4 Wide-Res field spectroradiometer can be utilized for many of the same applications as the Standard-Res model although the characterization of material with sharper spectral features will be less precise. The FieldSpec 4 Wide-Res is not recommended for the analysis of materials and compounds with narrow or sharp geological spectral features in the SWIR range such as alteration mineralogy or atmospheric/gas studies.

Because of its wider optical slit the FieldSpec Wide-Res field spectroradiometer delivers the best signal throughput of any FieldSpec spectroradiometer. High throughput benefits measurements taken in low illumination conditions.

This instrument is available at a significantly lower price point than other FieldSpec 4 models, which makes it an attractive option when budgets are tight.

In addition to being a cost-effective field spectroradiometer, the FieldSpec 4 Wide-Res also functions well as a rugged, field spectrometer for accurate contact reflectance or non-solar stand-off measurements.

Spectral Range 350-2500 nm
Spectral Resolution 3 nm @ 700 nm
30 nm  @ 1400/2100 nm 
Sampling Interval 1.4 nm @ 350-1000 nm
1.1 nm @ 1001-2500 nm
Scanning 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 Cooled
Input 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  1.5 X10-9  W/cm2/nm/sr @ 1400 nm
SWIR 2  2.8 X10-9  W/cm2/nm/sr @ 2100 nm
 
Weight 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

Plant Physiology

ASD systems are used to determine plant physiological status, including disease status, nutritional status related to nitrogen uptake and moisture balance.

Read more

Detection of Disturbed Surfaces

Hyperspectral sensing's ability to detect ground disturbances aids in the detection of buried land mines and IEDs.

Read more

Camouflage Characterization and Detection

The detection of camouflaged or hidden objects requires a measurement that provides a contrast between the object and background materials.

Read more

Near Shore Operations

The planning of amphibious operations requires knowledge of the bearing strength and trafficability of the landing area as well as the bathymetry in the vicinity of the landing zone.

Read more

Sensor Calibration

An accurate radiance calibration of an imaging sensor is critical to many remote sensing applications.

Read more

Supervised Classification

Supervised classification can be performed using either image-derived or field-measured spectral signatures.

Read more

Optics and Photonics

Use ASD's rapid, precise spectroradiometers for your optics and photonics applications.

Read more

Spectroradiometry and Radiometric Calibration

Spectroradiometry, the measurement of absolute optical radiation at each wavelength, is applicable to a variety of settings, including measuring the spectral energy output of a lamp, LED display, or other light source to determination of the flux of sunlight reaching a forest floor or other scene.

Read more

Ice Characteristics Research and Snow Research

The study of snow and ice characteristics to better understanding the Earth-atmosphere radiation balance and correlations between snow reflectance and grain shape and size, hardness index, density, liquid water content, and snow temperature.

Read more

Water Remote Sensing

Above water reflected radiance to infer water leaving radiance without the need for in-water measurement for interpretation and field validation of satellite imagery and more

Read more

Spectral Remote Sensing

Collection of visible, near infrared, and short-wave infrared images for the detection, identification, and quantification of surface materials, biological, and chemical processes for research and analysis in numerous environmental and military applications.

Read more

Ground Truthing

Laboratory-quality in situ field measurements with equivalent illumination and viewing geometry for accurate correlation to satellite and aircraft sensor data.

Read more

Field Spectroscopy

Field spectroscopy — the study of the interrelationships between the spectral characteristics of objects and their biophysical attributes in the field environment.

Read more

Landscape Ecology and Ecology Research

The ability to accurately perform reflectance and radiometric measurements of vegetation and soil in the field is critical to understanding light utilization and partitioning within a plant community.

Read more

Climate Effects

Global change occurs on a daily basis and data collected through remote sensing can be used effectively in climate change studies.

Read more

Atmospheric Remote Sensing Research

Observations of direct, diffuse, and total spectral solar irradiance, as well as sky and cloud radiance, are essential for atmospheric research in many climate and ecosystem energy balance studies.

Read more

Airborne Remote Sensing Measurements

The collection of spectra over areas that are too large or inaccessible for ground-based measurement.

Read more

Optical Radiation Measurement

Optical radiation measurements, commonly referred to as photonics, is the technology of generating and harnessing light, and other forms of radiant energy, particularly in the visible and near infrared light spectrum.

Read more

Light Energy Measurement

The field measurement of light energy constitutes an essential step in some of the world’s most advanced research applications.

Read more

Crops and Soils Research for Soil Nutrients Analysis

Crops and Soils Research for Soil Nutrients Analysis Read more

Find a Distributor

Our Representative Network includes companies around the world.

Contact Us

(303) 444-6522

Join the ASD Community