For mining exploration geologists, these improvements translate into faster data capture at exploration targets and drilling sites. The improved data quality provided by the ASD TerraSpec® 4 Hi-Res mineral spectrometer also allows for accurate assessment of low-concentration and low-reflectance minerals, like iron-containing minerals such as serpentines and chlorites, which were previously difficult to measure. Benefits include:

  • Enhanced optical configuration provides more precise spectral results for superior spectrum clarity and definition.
  • Industry leading performance in the SWIR 1/SWIR 2 regions for unparalleled alteration mineral identification.
  • Standard ruggedized steel covered fiber optic cable ensures consistent spectral quality.
  • No need for sample prep, which means fast field scans.

Pair the ASD TerraSpec 4 Hi-Res mineral analyzer with The Spectral Geologist (TSG) software from Spectral Geoscience to analyse the spectra and produce mineralogical output products.

Key applications

The ASD TerraSpec 4 Hi-Res mineral spectrometer can be used in many industry applications, including:

Oil Sands and Oil Shale Analysis 
ASD instruments are used for onsite monitoring of kerogen and bitumen quantities 

Petroleum Exploration 
Petroleum geologists utilize ASD instruments for improved definition of deposit mineralogy, real-time strata correlation, hole stability monitoring and dolomite porosity determination. 

Mining Production and Mineral Processing 
Evaluate and monitor mineral and ore properties to maximize a variety of mining processes and operations. 

Mineral exploration

Deposit mapping

Mineral assemblage identification

Drill cutting analysis

Core logging

Determining geochemical gradients

Clay species delineation

Faster vectoring to ore body


Диапазон длины волны 350-2500 nm
Разрешение 3 nm @ 700 nm and 6 nm @ 1400/2100 nm
Scanning time100 milliseconds
Signal-to-noise ratioVNIR:  9,000:1 @ 700 nm
SWIR 1:  9,000:1 @ 1400 nm
SWIR 2:  4,000:1 @ 2100 nm
Stray lightVNIR:  5000:1 (0.02%)
NIR:  10,000:1 (0.01%)
Wavelength reproducibility0.1 nm
Погрешность длины волны 0.5 nm
Каналы 2151
Матричный фотодиодный УФ-детектор (VNIR) (350-1000 nm) 512 element silicon array
SWIR 1 & 2 detectors(1001-1800 nm) & (1801-2500 nm) Graded Index InGaAs Photodiode, TE Cooled
Certification and ApprovalsCE certified:  EN61010-1:2001 2nd Edition
EU Directive:  2006/95/EC, 2004/108/EC
NIST traceable calibration
WEEE Compliance
CommunicationsWired:  10/100 Base T Ethernet port with Ethernet cross-over cable
Wireless:  802.11g/n wireless card
Габариты: (H x W x D) 12.7 x 36.8 x 29.2 cm (5 x 14.5 x 11.5 in)
Масса: 5.44 kg (12 lbs)
Battery weight1.2 kg (2.7 lbs)
Battery run timeApproximately 6 hours (without lamps or accessories)
Температура эксплуатации: 0 to 40° C (32 to 104° F)
Температура хранения -15 to 45° C (5 to 113° F)
Input powerAC/DC switching power supply and a sealed lead-acid gel cell battery
AC input90-240 VAC, 50/60 Hz
DC input12 VDC, 60 W
Auxiliary port powerOutput, +12 VDC, 27 Watt (max)
Программное обеспечение RS3™ spectral acquisition software, Compatibility with The Spectral Geologist and SpecMin, Seamless interface with ENVI®, ASD ViewSpec™ Pro for post processing, optional Indico® Pro
PortabilityRugged instrument transportation case; optional customized backpack with soft-sided travel bag
WarrantyOne year full warranty including expert customer support
Компьютер Windows® 7 64-bit laptop (instrument controller)

Дополнительное оборудование

ASD TerraSpec® 4 Hi-Res Mineral Spectrometer

Probes and Lighting

Contact Probe


The ASD Contact Probe is designed for contact measurements of solid raw materials such as minerals, grains, other granular materials. Its innovative optical design minimizes measurement errors associated with stray light and allows for measurement of samples through clear and transparent plastic bags.

In addition to the standard contact probe, ASD also offer the Hi-Brite contact probe and the Plant Probe.

All contact probes are available with a ruggedized cable feed and cable, designed for applications that involve extra cold or harsh temperatures. (see image below specifications)


Length10" ( 25.4 cm)
Weight1.5 lbs (.7 kg)
Power requirements12-18 VDC, 6.5 W
Lightsource type/Life (approx.)Halogen bulb/1500 hours
Halogen bulb color temperature2900 K
Spot size10 mm
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Fiber Optic Illuminator


The Fiber Optic Illuminator is a portable, external light source designed for use with ASD instruments and sampling accessories that do not have a built-in light source.

Technical Specifications

Length   11.43 cm (4.5 inches)
Width   8.255 cm (3.25 inches)
Weight   292 grams (10.3 ounces)
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The ASD Muglight is designed for analysis of raw materials requiring reflectance and absorbance measurements. It can measure samples through glass vials, or using the ASD sampling tray adapter. It's unique and innovative design minimizes measurement errors associated with stray light and specular reflected components.

For users requiring higher intensity illumination, ASD also offers the Hi-Brite Muglight.

Muglight specifications:

Size5.5” x 3.7” (14cm x 9.4cm)
Weight2.91 lbs (1.3 kg)
Power requirementsInput power 5.5 W, bulb 4 W
Light source (type/life) approx.Tungsten Quartz Halogen b/1500rs
Bulb color temp2900 K
Spot size12 mm
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Rapid Analysis Probe


The Rapid Analysis Probe is specifically designed for speedy spectral collection of powders and other fine-grained materials such as small uniform seeds and grains. Its beveled tip and metal jacket greatly speed up the spectral collection process of fine grained materials to optimize workflow. Simply insert the Rapid Analysis Probe into your fine-grained media, collect the spectrum, use a chemical wipe to swipe the probe clean and move on to the next sample. It’s that easy! The Rapid Analysis Probe comes with a gimbaled white reference for high performance calibration. It can be used for quantitative predictive models.

If using this probe with a spectrometer such as a TerraSpec mineral analyzer or a LabSpec lab analyzer without an integrated light source, a Fiber Optic Illuminator is necessary. The Fiber Optic Illuminator provides the light source needed for sample collection.

Technical Specifications

Length: 21.6 cm (8.5 inches)
Spot size: 4 mm

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Small Diameter Reflectance Probe


With an approximate spot size of only 2 mm, the Small Diameter Reflectance Probe was designed to collect spectra from individual small materials such as individual grains or vugs in a hand sample or rock core. It’s perfect for determining specific mineralogy of individual grains.

If using a spectrometer such as a TerraSpec mineral analyzer or a LabSpec lab analyzer without an integrated light source, a Fiber Optic Illuminator is required. The Fiber Optic Illuminator provides the necessary light source for sample collection.

Technical Specifications

Length: 10.2 cm (4 inches)
Field of View: 1 mm

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When your application requires analysis of irregularly shaped or non-homogeneous samples, the ASD Turntable is ideal for obtaining a highly accurate average. Especially useful for instrument owners in the grain, agriculture, pulp and paper, food, plastics and mining industries.

The Turntable offers:

  • 53.2 mm sampling spot size
  • Rotates at 22 RPM
  • Fits up to a 150mm sample dish
  • Compact (8"x11"x11" or 20.32 cm x 27.94 cm x 27.94 cm) footprint.

The Turntable comes standard with a 4000 hour halogen light source and one standard 150 mm x 15 mm Petri dish.

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General Accessories

Ergonomic Pro-Pack Backpack

The ASD Ergonomic Pro-Pack Backpack takes field portability to a higher level for FieldSpec®, LabSpec®, and TerraSpec® customers requiring the ultimate in portability.

Constructed of ultra-tough but lightweight material, the Ergonomic Pro-Pack Backpack weighs only 5.5 pounds (2.49 kg). The Pro-Pack Backpack positions the center of mass much closer to the body, and the easily adjustable ‘one size fits all' frame accommodates all body types for superior ergonomics.

Additionally, the Pro-Pack comes standard with:

  • ‘Pull-out' waterproof rain hood built in
  • Snap-on spool holder for protective storage of the fiber optic cable
  • Larger storage pockets to hold the notebook controller and accessories
  • Soft-sided travel case for backpack to aid in easy travel.
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Reference Panels

Reference Panels


ASD carries a wide array of calibrated and non-calibrated diffuse white and gray reference panels in varying sizes (from 2 x 2 in. to 12 x 12 in. or 5.1 x 5.1 cm to 30.5 cm x 30.5 cm) and reflectance levels, including encapsulated gray scale (NIST/NRC traceable) wavelength and USP standards for USP 1119. Calibrated panels come with certificate and documentation showing standard deviation and reflectance factors.

All reference panels and standards may be purchased separately. To provide our customers with a more cost-effective approach, specific sizes or styles of reference panels are included in accessory bundles designed for maximum compatibility with a particular application.

Your ASD sales representative will be able to advise you on the best option(s) for your needs.

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