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Remote
Sensing and Spectroradiometry
ASD's spectroradiometers are ergonomic state-of-the-art
instruments for quantitative measurement of
radiant energy, from 350 nm - 2500 nm in radiance, irradiance,
reflectance or transmission.
Superior sensitivity combined with a 0.1 second scan
time permits greater data collection in a shorter
amount of time and faster movement between sites for
researchers in the field.
Extreme performance in extreme conditions- ASD's FieldSpec¢ç
products have gone the distance to
provide laboratory quality data in the field.
Everyday, new and exciting applications for portable
spectrometry are being explored. ASD is well
known for its expertise and novel thinking in providing
practical portable solutions for these new appli-
cations.
At the core of each ASD instrument is the modular Goetz
Spectrometer.
This combined with the ability to interface with many
different probes and sampling accessories,
allows for maximum flexibility and customization to
your specific application need. With ASD
technology, one spectrometer and a few accessories are
all you need for a world of unique appli-
cations! |
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Agriculture,
Vegetation, and Forestry
There
are many applications of spectral field data in agriculture, ecology
and forestry.
In some cases, the spectral information is used as reference
data for interpreting spectral imagery
and in other cases, the information is used directly.
These applications include delineation of species assemblages,
mapping of ecosystem productivity,
crop type or yield mapping, spatial distribution of induced
stress, fertilizer and water application/
scheduling, and harvest scheduling.
Statistical analysis and regression techniques are used
to develop relationships between the spectral
information and the chemical and biophysical properties
of the targets.
The physics of optical energy interactions are also studied
to determine variations as a function of
geometry, illumination, and observation angle.
The ASD FieldSpec¢ç line includes a variety of optional
accessories, illumination probes, fiberoptic
extensions, foreoptics and calibrations for agriculture,
vegetation, and forestry studies. |
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Airborne
Measurements
At
times, the observation area is too large or too inaccessible for practical
on-foot, or on-vehicle
(or boat) coverage within the required observation time
limits.
Also, some modeling techniques require spectral observations
at various altitudes. An airborne spect-
rometer is often the only solution.
ASD FieldSpec¢ç spectrometers have the size, weight, ruggedness,
and configuration flexibility to be
used in an airborne platform. |
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Atmospheric
Modeling
Atmospheric
correction is an essential step in the analysis of spectral imagery.
Spectral atmospheric observations are also essential for
climate and ecosystem energy balance
studies.
Studies of outdoor lighting, transportation safety lamps,
and military illumination sources often require
observations of long-path transmission through the atmosphere.
Existing atmospheric models are sometimes sufficient,
but in a universe of new observations, model
enhancement or even new full model development are sometimes
required.
ASD FieldSpec¢ç spectrometers are available as spectroradiometers
and with the necessary optional
calibrations and accessories for a variety of spectral
atmospheric studies. |
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Fire
Detection
Forest
fire detection and fuel load mapping are relatively new remote sensing
applications.
ASD's FieldSpec¢ç has been used to observe smoke and burning
gasses from forest fires to find key
features for early detection.
Field spectra of the various fuel types have been used
to map fuel loads in hyperspectral imagery.
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Ground
Truthing
Different
multi-spectral and hyperspectral imaging sensors have different spectral
band-widths and
positions. In order for ground referencing spectral data,
also known as ground truthing data, to be convolved,
i.e. re-sampled, to all of these different sensor bands, it must be
of sufficient spectral resolution and wavelength
range.
Ground truth data is essential for characterizing ground
calibration targets and for interpreting unknown
materials in multi-spectral and hyperspectral images.
Obviously, sample removal for lab study is impractical
for targets such as lake beds, fields, bodies of
water, buildings, rock faces, tree canopies, hazardous
materials, sensitive ecosystems, and target
that change significantly when moved.
Lab measurements are also impractical for capturing the
full range of illumination and environmental
conditions.
The battery powered, portable ASD FieldSpec¢ç has the necessary
spectral resolution, wavelength
coverage options, and configurations for the demands of
ground truthing data collection. |
Minerals,
Mining and Soils
For
decades, geologists have studied high-resolution reflectance spectra
of minerals and soils to
determine mining and soil potential.
Very successful models have been, and are continuing to
be, developed which facilitate the inter-
pretation of these spectra.
These studies overlap into hazardous waste environmental
applications as well as agriculture,
hydrology, and military troop movement planning.
Observations are used for ground truthing as well as in
more direct applications.
ASD offers a variety of field spectrometer options, some
tailored specifically for minerals and soils.
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Spectroradiometry
and Calibration
ASD
facilities include NIST traceable wavelength and radiometric calibration
equipment.
Certificates are provided for all wavelength calibrations
and optional radiance and irradiance calibrations.
ASD FieldSpec¢ç models and optional foreoptic accessories
are the expert's choice for portable
spectroradiometric observations of natural and artificial
light fields.
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Snow
and Ice
One
of the early pioneering applications for spectral observations was
the study of snow and ice
characteristics to better understand the Earth-atmosphere
radiation balance.
Concurrent directional-hemispherical and angular spectral
reflectance studies have also shown
correlations between snow reflectance and grain shape
and size, hardness index, density, liquid water
content, and snow temperature.
Obvious applications include climatology, avalanche monitoring,
and water management.
Under-ice photo-biological studies are also of interest.
Multi-spectral field validations have been critical
in all of these applications and the ASD FieldSpec¢ç line
offers the configuration options for above-snow
& ice and below-ice measurements. |
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Bodies
of Water
High
spectral resolution observations of bodies of water have lead to a
better understanding of
natural water body absorption and transmission properties,
phytoplankton ecologies, algae blooms,
and heat flow layering.
These quantities can in turn be used to determine underwater
visibility and military laser limits, predict
the status of fish/shellfish, manage sediment discharge,
and develop climate models.
In-situ measurements have been used for both field validation
of spectral imagery and direct appli-
cations.
The ASD FieldSpec¢ç line includes optional calibrations,
optional underwater foreoptics and optional
fiberoptic extension jumper cables for a variety of water
body studies. |
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Spectroradiometers
ASD's spectroradiometers
are ergonomic state-of-the-art instruments for quantitative
measurement of radiant energy, from 350 nm - 2500
nm in radiance, irradiance,
reflectance or transmission. Superior sensitivity
combined with a 0.1 second scan time
permits greater data collection in a shorter amount
of time and faster movement between
sites for researchers in the field.
Extreme performance in extreme conditions - ASD's
FieldSpec¢ç products have gone the
distance to provide laboratory quality data in the
field. |
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FieldSpec¢ç 3 |
Acquiring
field data is now even easier! FieldSpec¢ç 3 is a user
friendly, field portable, precision instrument with
a full spectral
range (350-2500nm) and rapid data collection (1/10th
of a
second per spectrum). |
FieldSpec¢ç
HandHeld
and
HandHeld
Pro |
With
the FieldSpec¢ç HandHeld and FieldSpec¢ç HandHeld Pro,
you can make spectroradiometric measurements anywhere!
Whether you are in a greenhouse or a growth chamber,
outdoors, in the laboratory or on the production
floor, the
compact FieldSpec¢ç HandHeld delivers real-time,
laboratory-quality results. |
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Vis/NIR Spectrometers
ASD's spectrometers are state-of-the-art,
rugged instruments for superior qualitative
measurement from 350-2500 nm, in reflectance, absorbance,
or transmittance. |
LabSpec¢ç 5000 / 5100
Series |
-
350-2500nm spectral coverage, available in six modular configurations,
offers the added benefit of the Visible and Third Overtone Rigions
- Post-dispersive hybrid system with extremely low
stray light
- Qualitative and quantitative capabilities
- Rapid scan time(100ms) |
LabSpec¢ç 2500 / 2600
Series |
-
Visible and NIR Spectral Range (350 nm - 2500 nm)
- the latest in truly portable post-dispersive ultra-rugged
spectrometers
- Ethernet and optional wireless functionality
- enhanced remote diagnostics, embedded Remote Trigger
port, and the new NIR Cooled InGaAs TurboScanner |
LabSpec¢çPro |
-
Visible and NIR Spectral Range (350 nm - 2500 nm)
- Rapid Scan Time (100 ms)
- Qualitative and Quantitative Analysis
- Absorbance, Transmittance and Reflectance Measurements
- Non-destructive Testing, Requires No Sample Preparation
- 21 CFR, Part 11 and USP Compliant
- Rugged & Durable
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QualitySpec¢çPro |
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High Performance, Visible and NIR Spectral Range
(350 nm to 2500 nm)
- Rapid Scan Time (100 ms)
- Qualitative and Quantitative Analysis
- Absorbance, Transmittance and Reflectance Measurements
Non-destructive Testing, Requires
No Sample Preparation
- 21 CFR, Part 11 and USP Compliant
- Rugged & Durable |
QualitySpec¢çiP |
QualitySpec¢ç
iP - all the power of near-infrared (NIR) spectroscopy for analyzing
key material properties on the process line, without all of the hassle.
Ideally suited for: |
QualitySpec¢çOSB |
-
Windows¢ç style set-up menus
- Automated calibrations
- Modular component design
- Remote monitoring capabilities
- Internal instrument diagnostics
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AgriSpec¢â
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AgriSpec¢â-
the rugged, field portable NIR analyzer designed
specifically for analysis of a wide range of organic
and
inorganic materials, including nutrient and moisture
properties
in soil, monitoring the composition of manure and
other
biosolids applied as fertilizer to agricultural
lands, animal
forage, food products, wood products, paper, textiles,
and
petrochemicals. |
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