Use of fiber-optic-based flow cells and probes in the chemical and petroleum industries

Mike Ponstingl; Hans Vetter

doi:10.1117/12.137743

14 August 1992 Use of fiber-optic-based flow cells and probes in the chemical and petroleum industries

Mike Ponstingl, Hans Vetter

Proceedings Volume 1681, Optically Based Methods for Process Analysis; (1992) https://doi.org/10.1117/12.137743
Event: SPIE's 1992 Symposium on Process Control and Monitoring, 1992, Somerset, NJ, United States

Abstract

Fiber-optic-based, on-line photometric/spectrophotometric analytic methods are becoming increasingly more important in the process control industries because of unique benefits such as: safety, real-time data capture, immunity to EMI/RFI, and simplicity of installation. End- users employing fiber-optic methods are experiencing increased production yields, less waster, and greater product consistency all because the process can be controlled more efficiently. Extractive and in-situ flow cells have proven to be valuable means of 'looking' at the process stream. These techniques are currently being offered by several manufacturers of on-line fiber-optic photometric/spectrophotometric instruments. Custom Sensors & Technology has developed practical techniques for optical energy transmission in the 250 - 2000 nm wavelength range. In addition to discussing extractive and in-situ methods of sampling, various design considerations are addressed which relate to the efficiency of coupling light energy into and out of extractive flow cells and in-situ probes. In-situ probes can be of the transmission, turbidity, attenuated total reflection, or diffuse reflection types; and can be installed in a sanitary or threaded pipe fitting.

Citation Download Citation

Mike Ponstingl and Hans Vetter "Use of fiber-optic-based flow cells and probes in the chemical and petroleum industries", Proc. SPIE 1681, Optically Based Methods for Process Analysis, (14 August 1992); https://doi.org/10.1117/12.137743

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