A Shipboard Oil-in-Water Content Monitor Based on Oil Fluorescence.
Abstract
A significantly improved Oil-In-Water Content Monitor has been developed and tested. A major improvement involves the use of dual polychromators to present a total luminescence image. Using a computer-designed mask, the fluorescence from various spectral regions is summed to produce approximately equal response from many oil mixtures. The monitor produces a real time output which is linear in oil concentration and which can be calibrated directly in ppm. While the fluorescence process is essentially instantaneous, (10 to the -8th sec), instrumental response is determined by the electronic time constant selected, usually 1 second. Auxillary transmission and scatter channels permit correction of scattering from particulates. The monitor has been tested with seventeen oil mixtures from 0 to 125 ppm, showing linear response with a standard deviation of 25.9% (at 50 ppm) for all oils, and a standard deviation of 18.1% when the heaviest oil mixture F2r, is omitted. Results of the laboratory test program are fully documented, potential problems are discussed, and recommendations for further improvements are included.
Document Details
- Document Type
- Technical Report
- Publication Date
- Feb 01, 1976
- Accession Number
- ADA027262
Entities
People
- A. W. Hornig
- B. R. Chisholm
- J. T. Brownrigg
- L. P. Giering