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Performance and Selected Applications of an Acousto-Optic Tunable Filter Near-Infrared Spectrometer

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The design and applications of a near-infrared (near-IR) spectrometer with an acousto-optic tunable filter (AOTF) as monochromator and light fiber optics are described. The aim of this spectrometer is rapid product and reaction control via remote sensing and chemometric data evaluation. Its application and performance are illustrated by the determination of the water content of acetone and by the contact-free temperature measurement of an aqueous solution.

Keywords: Acousto-optic tunable filter; Instrumentation; Near-Infrared

Document Type: Research Article


Affiliations: 1: Department of Physical Chemistry, University of Essen, D 45117 Essen, Germany; present address: Yokogawa Electric Corporation, Development & Engineering Dept. II, Industrial Measurement Business Division, 2-9-32 Nakacho, Musashino-shi, Tokyo 180, Japan 2: Department of Physical Chemistry, University of Essen, D 45117 Essen, Germany

Publication date: February 1, 1995

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