Performance comparison of advanced online sensors for steel-treatment atmosphere control

Wim A. de Groot; Ronald Rich

doi:10.1117/12.337477

22 January 1999 Performance comparison of advanced online sensors for steel-treatment atmosphere control

Wim A. de Groot, Ronald Rich

Proceedings Volume 3535, Advanced Sensors and Monitors for Process Industries and the Environment; (1999) https://doi.org/10.1117/12.337477
Event: Photonics East (ISAM, VVDC, IEMB), 1998, Boston, MA, United States

Abstract

Three novel atmosphere gas composition monitoring methods are described that could significantly improve the quality control of steel heat treat processes. The proposed methods, gas chromatography, inter-cavity Raman analysis, and fiber- optic Raman analysis are in different stages of development but all have varying advantages over the current state of the art IR analysis. A summary description of the Raman principle is provided. Test results comparing the inter- cavity Raman analysis versus the gas chromatography analysis are given. The major disadvantage of the gas chromatography is the slow response. The cost-effective inter-cavity Raman device can monitor eight species simultaneously with a response in the order of tens of milliseconds. An in-situ fiber optic Raman analysis instrument is expanded and carburizing facility test with this novel device are described. Advantages of the fiber-optic instrument are the in-situ nature and the fast response. This instrument lends itself to be readily used in applications where hostile environments require monitoring.

Citation Download Citation

Wim A. de Groot and Ronald Rich "Performance comparison of advanced online sensors for steel-treatment atmosphere control", Proc. SPIE 3535, Advanced Sensors and Monitors for Process Industries and the Environment, (22 January 1999); https://doi.org/10.1117/12.337477

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