G - Physics – 01 – J
Patent
G - Physics
01
J
73/55
G01J 3/42 (2006.01) G01J 3/12 (2006.01) G01N 21/35 (2006.01) G01J 3/28 (2006.01)
Patent
CA 1278196
ABSTRACT OF THE DISCLOSURE The improved system for remote chemical analysis of this invention includes a quartz halogen bulb as a source of infrared light, quartz fibers leading to and from a sample cell, a non-collinear thallium arsenic selenide, AOTF to perform spectral analysis and a lead selenide detector. Both the AOTF and the detector are interfaced with a microcomputer. Under the control of the microcompu- ter, this equipment gathers and interprets transmission spectra obtained through the passage of infrared light through the sample cell. Microcomputer interface provides rapid random-access to the RF frequency driving the AOTF, which selects the wavelength of light to be examined and also provides routines for sample averaging and the compar- ison of various reference spectra. An acousto-optic device mounted in an enclosure which includes input and output crystal fiber connectors is also provided.
517565
Nelson Robert Leonard
Ryan Frederick Merk
Rosemount Analytical Inc.
Smart & Biggar
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