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Dual Detector Spectrometers

Photonics.com
Feb 2007
StellarNet Inc.Request Info
 
TAMPA, Fla., Feb. 22, 2007 -- The DUAL-DSR spectrometers from miniature fiber optic spectrometer maker StellarNet Inc. are fiber optically coupled instruments that cover a "super range" from 0.2-2.3 µm for spectroscopy measurements on a PC via USB-2 interface. The spectrograph optics have no moving parts, for shock-proof durability in a portable environment with battery power optional.

Dual-DSR.jpgEach system has a 2048-element detector array for UV-VIS and also a thermoelectrically cooled 512- or 1024-element InGaAs photodiode array for near infrared (NIR). SpectraWiz software produces a single spectral graph, allowing user adjustment of spectral overlap. Several configurations provide options for desired range and resolution with each detector in a separate ruggedized modular enclosure.

Optional fiber optic accessories are available for simultaneous color and composition analysis of solids. The RFX1 reflectance fixture has an integrated halogen light source and allows placement of samples on top in a Petri dish or a glass plate. For chemical analysis of liquids, the SL1-CUV halogen light source has an integrated 1-cm cuvette holder.

Also available are dip probes with replaceable tips of various path lengths (0.5 cm, 1 cm, 2 cm, etc.). Longer path lengths allow for lower concentrations measurement. For optical spectroscopy measurements, the TXF3 transmission fixture allows adjustment for sample placement between two collimating lens attached via fiber optic cables to the NIR spectrometer and SL1 halogen light source.

The included SpectraWiz software suite enables a variety of spectroscopy measurements, such as "customizable" programs for LabVIEW and direct operation from MS Excel via Visual Basic Automation.

For more information, visit: www.stellarnet-inc.com; e-mail: contactus@stellarnet-inc.com

StellarNet Inc.
14390 Carlson Cir.
Tampa, FL 33626
Phone: (813) 855-8687
Fax: (813) 855-2279



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GLOSSARY
detector
1. A device designed to convert the energy of incident radiation into another form for the determination of the presence of the radiation. The device may function by electrical, photographic or visual means. 2. A device that provides an electric output that is a useful measure of the radiation that is incident on the device.
photonics
The technology of generating and harnessing light and other forms of radiant energy whose quantum unit is the photon. The science includes light emission, transmission, deflection, amplification and detection by optical components and instruments, lasers and other light sources, fiber optics, electro-optical instrumentation, related hardware and electronics, and sophisticated systems. The range of applications of photonics extends from energy generation to detection to communications and...
reflectance
The ratio of reflected flux to incident flux. Unless otherwise specified, the total reflectance is meant; it is sometimes convenient to divide this into the sum of the specular and the diffuse reflectance.
spectrometer
A kind of spectrograph in which some form of detector, other than a photographic film, is used to measure the distribution of radiation in a particular wavelength region.  
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