TDLAS OXYGEN Sensor for Measurement on Flow-Packed Products

L. Cocola, M. Fedel, G. Tondello, L. Poletto

Abstract

Tunable Diode Laser Absorption Spectroscopy has been applied to the realization of an instrument for the non-invasive contactless measurement of gaseous oxygen concentration inside sealed food containers. The device performs in-line measurements on samples which are passing on a conveyor belt and has been applied to the measurements on mozzarella cheese bags sealed in modified atmosphere, in which the target oxygen concentration is required to be below 5%. We describe the realization, calibration and validation of the device.

Keywords

Tunable Diode Laser Absorption Spectroscopy, Wavelength Modulation Spectroscopy, Modified Atmosphere Packaging, oxygen detection

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IMEKO-TC23-2016-056.pdf

DOI

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IMEKO TC

TC23 - Metrology in Food and Nutrition

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