Portable instant display and analysis reflectance spectrometer

Details Portable instant display and analysis reflectance spectrometer Portable instant display and analysis reflectance spectrometer

G - Physics

01

N

73/55

G01N 21/25 (2006.01)

Patent

CA 1245071

ABSTRACT PORTABLE INSTANT DISPLAY AND ANALYSIS REFLECTANCE SPECTROMETER A portable analysis spectrometer (10) for field mineral identification is coupled to a microprocessor (11) and memory (12) through a bus (13) and A/D con- verter (14) to display (16) a spectrum of reflected radiation in a band selected by an adjustable band spectrometer (20) and filter (23). A detector array (21) provides output signals at spaced frequencies within the selected spectrometer band which are simul- taneously converted to digital form for display. The spectrum displayed is compared with a collection of spectra for known minerals. That collection is stored in memory and selectively displayed with the measured spectrum, or stored in a separate portfolio. In ei- ther case, visual comparison is made. Alternatively, the microprocessor may use an algorithm to make the comparisons in search for the best match of the mea- sured spectrum with one of the stored spectra to iden- tify the mineral in the target area.

491283

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