SpectraWiz®

ChemWiz® Analyzer Development Kit

The SpectraWiz ID software provides element identification for LIBS/Plasma and Optical Emission Spectroscopy. Samples can be quickly measured and saved to log-file. Options allow customization of spectral search algorithms.

Thickness and optical constants (n and k) can be measured quickly and easily using powerful user-friendly software which make daily complex measurements quick and simple.

Demo Source Codes/Programs

SpectraWiz® Spectroscopy Software
SpectraWiz®, StellarNet's main software program included free with every spectrometer, has many built in applications for SpectroRadiometry, SpectroColorimetry, SpectroChemistry, Optical Spectral Analysis, Calibration, and much more. The SpectraWiz® interface allows the user to change various parameters that control the operation of the spectrometer and how the data is displayed in real-time.  For example, the spectral display may be zoomed, rescaled, snap shot, printed, graphed, exported, overlayed, and graphed in 3D from episodic capture.  Other controls are provided for detector integration or exposure time, data smoothing (Savitzky-Golay, Box Car, Persistance), temperature compensation (every 15 seconds), and spectroscopy display modes such as absorbance, transmission and reflectance, irradiance, and scope view for raw spectral data..

SpectraWiz Radiometer Applications
StellarNet SpectroRadiometers include a configured spectrometer, a fiber optic cable (or direct connect SMA-coupler), a light collecting accessory and an Irradiance calibration (SpectroRadiometer). SpectraWiz Software can display the following-

- Irradiant watts per square meter per nm
- Irradiant microwatts per sq centimeter per nm
- Illuminant LUX - lumens per sq meter per nm
- Illuminant footcandles - lumens per sq foot /nm
- Moles per square meter per nm per second as
- PAR photosynthetic active radiation 400-700nm   
- Power Spectral Density with selectable regions
- Radiant & Luminous FLUX with selectable area
- LED xy chromaticity, dominant λ, purity, mcd
- Color rendering graph with rapid sample logging
- Correlated color temperature & CRI index




UV Monitoring Applications
Display in units of watts for UVa, UVb, UVc, ratio UVa/UVb, Vis/Ir power Max Time in seconds till Erythema action and Max Time till Melanogenic action (per formulas specified on FDA website - U.S.Food and Drug Administration) Quickly save sample readings to log file for export and/or printing.

- UVa, UVb, UVc, UV a/b ratio, Total Irradiance
- Power UVb, Power VIR
- Te Erythema minutes
- U.S.FDA & European tanning algorithms
- Real-time display with rapid sample logging

SpectraWiz Optical Spectrum Analysis Tools
- Display FWHM, centroid, and peak wavelengths
- Power spectral density via manual cursor setup
- Zoom x-axis, zoom xy window, set or y-autoscale
- View y-axis as log or linear scale
- Optical trigger event setup for spectral capture
- Episodic capture can save via optical trigger event
 

The SpectraWizard knows Spectroscopy!
The powerful SpectraWiz® 32 bit spectrometer software is provided free of charge with every spectrometer instrument.  This includes drivers and customizable software for operation on Win95/ Win98/ WinNT /WinME /Win2000 /WinXP/VISTA/Windows 7.

StellarNet SpectroColorimeters include a configured spectrometer, a light source, and a reflectance probe or fixture. SpectraWiz Software can display the following-

- 1976 CIE LAB diagram for L*, a*,   b*
- Delta E* comparator signals color differences
- Save and load color standards for Delta E* signal
- Color rendering graph with rapid sample logging
- Supports master and standard white referencing
- XYZ tri-stimulus, xy chromaticity, chroma, hue


SpectraWiz Chemistry Applications
StellarNet SpectroChemistry systems include a configured spectrometer, a light source, and an appropriate sampling accessory (cuvette holder, probe, flow cell). SpectraWiz Software provides simultaneous window (with live spectra allows concentration calibration or loading of previously developed chemicals to be loaded for concentration display of unknown samples. Quickly save sample readings to log file for export and/or printing. Performs single wavelength linear PLS calibrations.

- Chemwiz concentration analyzer
- PLS calibration method save & recall
- Concentration display with rapid sample logging
- Episodic capture for kinetic studies


SpectraWiz Spectroscopy Tools and Support
- Transmission %T, Absorbance AU, Reflectance
- Episodic data capture & Time series analysis
- Dual and multi-beam lamp drift correction
- Single-beam relative and absolute drift correction
- Spectral ratio display with selectable wavelengths 
- First and second spectral derivatives
- Export spectra to Excel, Matlab, and Galactic
- Open, graph, zoom, and print up to 8 spectra
- Up to 8 spectrometers display on a single graph

SpectraWiz® LabVIEW Software
StellarNet provides fully functional customizable spectroscopy programs for National Instruments LabVIEW free with every spectrometer. The LabVIEW programming environment allows rapid customization to adapt the software to any application. Current features include setting of all instrument configuration parameters, plotting of spectral data in Scope mode, Absorbance mode, Transmission mode, and even Irradiance mode. In addition, a time series function is built in that enables the user to select independent wavelengths and follow them as a function of time. This time series data can be exported to file and post-processed for kinetic parameters. In addition to the Spectroscopy Suite, basic VIs are available that  allow the user to integrate StellarNet’s spectrometer into their existing LabVIEW application.

StellarNet All-In-One Block Diagram

The VI's construction is straightforward. Initialization is performed and the values retrieved from sw.ini (the parameter file created by SpectraWiz) are retrieved. These are either used or supplanted by the front-panel (or wired-in) parameter values. A parameter update is performed, and the spectrum is retrieved. If an error occurs during the scan process, the LabVIEW error cluster is updated, allowing downstream processes to detect and handle the error gracefully

StellarNet All-In-One LabVIEW subVI PDF



Single-Channel SpectraWiz for LabVIEW
The StellarNet SpectraWiz for LabVIEW spectrometry application is a full spectroscopy program that provides an easy-to-use graphical user interface for any of up to eight StellarNet USB spectrometers plus logging of process data on local or network storage.

It is designed to work independently of the SpectraWiz software utility. Spectrometer calibration parameters are managed by this application, either automatically in the case of BLUE-Wave and other advanced units with non-volatile onboard parameter storage, or manually when the spectrometers are first connected.

The software utilizes a easy-to-use and space-efficient tabbed-panel design. Data logging and snapshots are supported, and time series may be logged to show changes of three wavelengths of any channel.

The software was entirely coded in LabVIEW 8.2 and interacts with the spectrometers via swdll.dll. In the graphical user interface, spectrometers (channels) are numbered 1-8, consistent with SpectraWiz usage.


The Graphical Display tab pane allows you to select three wavelengths for a given channel to monitor. You may hide or display each channel; the wavelength and the intensity at each cursor-selected wavelength is displayed in the legend. This information is also used in the Time Series tab pane.


StellarNet Single-Channel LabVIEW PDF

StellarNet All-In-One LabVIEW subVI
The StellarNet Init, Read, Close.vi is a general-purpose subVI for programming episodic spectral readings in LabVIEW. When called, it:

1) Initializes the instrument using either programmatic parameters or parameters stored on disk by SpectraWiz,
2) Acquires the spectrum, returning it to the calling VI as a graph-ready cluster that includes amplitude and wavelength information, and
3) Checks for error information from the .dll during the scan process, providing this in a LabVIEW-compatible format.

Since it is entirely self-contained, it can be used interactively as well as called as a subVI

Front Panel of StellarNet Init. Read, Close.vi. When called, indicate whether the software should use the parameters established by SpectraWiz, or front-panel (or wired-in) parameters.

Operating parameters such as integration time may now be adjusted by the user. On any change of operating parameter, the most-recently-used parameters are automatically written to disk (crash-proof).


After selecting the wavelengths to monitor on the Graphical Display tab pane, you may switch to the Time Series tab pane to view a rolling graph showing the behavior of the selected channel at those wavelengths over a period of time. For convenience, a real-time view of the full spectrometer data is presented in an inset graph at the upper left. You may clear the history of the rolling graph at any time by clicking the Clear History button at the upper left.