Accession Number : ADA320082

Title :   Test Tank Evaluation Of A Frequency-Scanning, Microwave Radiometer to Estimate Oil Thickness and Physical Properties.

Descriptive Note : Final rept. Sep 94-Feb 96,

Corporate Author : MASSACHUSETTS INST OF TECH LEXINGTON LINCOLN LAB

Personal Author(s) : Murphy, T. J. ; McMahon, O. B. ; Hover, Gary L.

PDF Url : ADA320082

Report Date : APR 1996

Pagination or Media Count : 559

Abstract : This report describes the testing of a 26-40 GHz (Ka-band) Frequency Scanning Radiometer (FSR) at OHMSETT (the National Oil Spill Response Test Facility) to evaluate the instrument's ability to detect and measure the thickness of oil films on water. Measurement variables were oil type, oil thickness, and wave conditions. The results indicate that the FSR was able to reliably measure oil thickness under calm conditions and, in some cases, under mild wave conditions. Future hardware development should include (1) a multichannel upgrade to the Ka-band FSR to decrease the data acquisition interval, and (2) the development of a proof-of-concept W-band (75-110 GHz) FSR to measure thinner films. After laboratory testing, these instruments should be evaluated at OHMSETT. Included in the appendices to this report are all of the radiometric brightness temperature (TB) versus measurement frequency plots for the data collected at OHMSETT.

Descriptors :   *THICKNESS, *MEASURING INSTRUMENTS, *RADIOMETERS, *OIL SPILLS, SCANNING, TEMPERATURE, LABORATORY TESTS, WATER WAVES, WATER, THIN FILMS, MICROWAVE EQUIPMENT, VARIABLES, DATA ACQUISITION, INSTRUMENTATION, OILS.

Subject Categories : Test Facilities, Equipment and Methods
      Water Pollution and Control

Distribution Statement : APPROVED FOR PUBLIC RELEASE