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A multi-purpose tool for
tunable diode laser data acquisition and spectral
analysis.
TDLWintel Software
Aerodyne Research, Inc. (ARI) is pleased to offer
our laser control and spectroscopic analysis program, TDLWintel.
TDLWintel is a general purpose laser control and spectral analysis
program. It makes high resolution, quantitative laser spectroscopy easy.
TDLWintel controls the laser, monitors the laser detector, acquires and
displays high resolution spectra and interprets the spectra to derive
molecular concentrations. This analysis is done in real time with
fitting rates as fast as 100 samples per second.
Click here for
TDLWintel screen shot
Basic Features:
-
Laser frequency scanned with a computer generated voltage ramp.
-
Detector monitored synchronously with laser scan.
-
Laser turned off after each sweep to measure absolute absorbance.
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Sample pressure and temperature continuously monitored.
-
Software control of all relevant parameters: sweep rate, gain, number
of points, etc...
-
Multiple species nonlinear least squares fits to overlapping spectra to
determine molecular concentrations.
-
Software control of all relevant fit parameters.
-
Spectroscopic constants input in HITRAN format - easily extended to
non-HITRAN molecules.
-
Continuous automated operation (stream mode) with time resolution of
10
ms under ideal conditions.
-
Screen displays of spectra and fits in real time.
-
Screen displays of molecular concentrations as a function of time.
-
Spectra saved in compact binary format.
-
Molecular concentrations can be written to disk, shared across a
network, written to an RS232 port or exported as an analog voltage.
-
Remote instrument
control.
Advanced Features:
-
Background spectra with dry nitrogen can be acquired automatically and
used to remove low level noise in the sample spectra.
-
The laser frequency can be locked to a reference absorption line.
-
Spectra can be acquired with high time resolution (~15 microseconds)
using a triggered data acquisition approach (burst mode).
-
Laser amplitude noise can be suppressed using a reference detector for
normalization - this is especially useful with pulsed lasers.
-
Frequency tuning rate function automatically determined
from etalon spectrum.
-
Flexible automatic gas calibration options.
-
Sophisticated post-analysis features.
-
Ability to interface
with Laser Components L5830 diode laser controller for direct control of
all diode laser parameters including laser temperature and current.
-
External control of TDLWintel by other
processes using command language.
-
Real time data
sharing across network using DEFT protocol.
Hardware Requirements:
-
500 MHz Pentium computer with Windows 95/98/2000 operating system.
-
National Instruments
(www.ni.com) PCI-6111E (2 inputs) DA board.
-
National
Instruments PCI-6024E
DA board.
Deliverables:
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TDLWintel installation disks.
-
License to use one instance of TDLWintel.
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Instructions for getting started with TDLWintel.
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Telephone support for 90 days after receipt of software.
Cost: $5,000
For more information about this product or associated R&D service
contact:
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