Measurement method for the determination of low levels of optica

Optics: measuring and testing – For light transmission or absorption – By comparison

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356432, 356437, G01N 2100

Patent

active

051856450

ABSTRACT:
A measurement method is presented for the determination of low levels of optical absorption in any material, with at least a quasi-simultaneous detection of the transmission intensities of a measurement light beam and a reference light beam, the wavelengths of which are different, such that, essentially, the measurement light is absorbed by the material to be tested, and with a joint analog acquisition of the detected measurement and reference signals, taking into consideration the natural difference in intensities between the measurement light beam and the reference light beam.

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Transmissions-Photometer brochure from Pier-Electronic.

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