Automation of a UV-visible Monochromator
Author Information
Author(s): Malcolm W. Warren, James P. Avery, Daniel W. Lovse, Howard V. Malmstadt
Primary Institution: University of Illinois, School of Chemical Sciences, Department of Chemistry
Hypothesis
The study aims to improve the automation and accuracy of a UV-visible monochromator controller.
Conclusion
The developed monochromator controller significantly enhances the accuracy and automation capabilities of the monochromator.
Supporting Evidence
- The wavelength calibration procedure was tested by comparing measured emission wavelengths to standard values.
- The measured peak maximum was reproducible to within +/- 0.01 nm.
- Slitwidth calibration showed intensity measurements never varied more than one percent for any slitwidth setting.
- The monochromator controller wavelength error was less than 0.01 nm during an 8-hour test.
- The error for slitwidth movement was less than 0.25 µm.
Takeaway
This study created a controller for a light device that helps scientists measure colors more accurately and automatically.
Methodology
The study involved testing the monochromator controller's accuracy using atomic lines from hollow cathode lamps and calibrating the wavelength and slitwidth.
Limitations
The monochromator used in the study is over ten years old, which may affect the accuracy of the results.
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