CALIBRATION AND FIELD TEST OF IRT.
Abstract
A number of tests were made to determine whether an infrared thermometer had sufficient accuracy to be useful for determining the fine structure of surface water temperature concurrently with field experiments of dye diffusion. A simple calibration was made by mounting the sensor at 33 ft, 13 ft, and 4 ft from the water surface of a basin 4 ft in diameter. Corrections of I R T readings for the airpath of 33 ft reach 2 F for water-air temperature differences (water warmer than air), of 20 F, 40 F and 60 F, respectively. These corrections seem to increase with the length of the airpath. The angle of attack of the sensor appeared to cause problems only when the angle exceeds 40 degrees from normal. With I R T mounted on the tower at Panama City (at 100 feet from the sea surface) the instrument was able to detect tide lines, ship wakes, and dye patches. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Apr 01, 1965
- Accession Number
- AD0470136
Entities
People
- Noel B. Plutchak
- Takashi Ichiye