Active spectrometer

Details Active spectrometer Active spectrometer

1998-06-08

1999-10-05

Evans, F. L.

Optics: measuring and testing

By dispersed light spectroscopy

With aperture mask

356328, G01J 306, G01J 318

Patent

active

059633204

ABSTRACT:
A grating spectrometer employing digital control of an oscillating component (a mirror) and phase-locked digital recording of the intensity profile within the narrow spectral domain defined by an oscillation frequency. Flexible choice of oscillation frequency permits measurement in a quiet region of the noise spectrum. Reference waveforms acquired with the same insturment can be stored and later used to deconvolute a more complex spectrum. The use of multiple detector/slit combinations along a Rowland circle makes the spectrometer sensitive to specific atomic elements.

REFERENCES:
patent: Re28216 (1974-10-01), Barringer et al.

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