Microprocessor automation of a UV-visible monochromator

نویسندگان

  • Malcolm W. Warren
  • James P. Avery
  • Daniel W. Lovse
  • Howard V. Malmstadt
چکیده

Introduction Isolation of selected wavelengths of light with high resolution grating monochromators is a common operation in spectrochemical methods of analysis. Commercial monochromators and monochromator controllers are often unable to control the monochromator’s operating parameters with the resolution required in automated systems. If a monochromator is to be used in a completely automated system its controller should provide a number of important capabilities: initialisation of wavelength and slitwidth operation; calibration of the wavelength and slitwidth; the ability to select any wavelength available; the ability to set any slitwidth available; provide operator interaction directly (stand-alone mode); and permit interaction with other microprocessors in the measurement system (slave mode). The controller should be extremely reliable for unattended use. In addition, the controller should also be able to operate in high noise environments without loss of accuracy and should not be the source of noise that will affect the operation of other parts of the instrument. The EU-700 (GCA/McPherson, 530 Main Street, Acton, MA, 01720, USA.)monochromator [1] was used in this study because it can be readily modified to provide these capabilities.

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عنوان ژورنال:
  • The Journal of Automatic Chemistry

دوره 3  شماره 

صفحات  -

تاریخ انتشار 1981