FIELD: material testing. SUBSTANCE: dish has two or more entrance optical windows and three or more exit optical windows. Dish has two frequency doublers, dichroic and rotary mirrors, and three and more light guides. Six or more methods of spectroscopy may be realized for restricted number of units for testing gas and solid body. EFFECT: improved precision. 1 dwg
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Authors
Dates
1995-06-19—Published
1991-01-09—Filed