Accession Number:

AD0269888

Title:

DETERMINATION OF THE SURFACE TEMPERATURE OF WATER DURING EVAPORATION STUDIES. A COMPARISON OF THERMISTOR WITH INFRARED RADIOMETER MEASUREMENTS

Descriptive Note:

Interim rept.

Corporate Author:

NAVAL RESEARCH LAB WASHINGTON D C

Personal Author(s):

Report Date:

1961-12-19

Pagination or Media Count:

10.0

Abstract:

The temperature of a water surface was measured by two techniques, one utilizing a commercial Ir radiometer, and the other, thermistor probes. Both methods were satisfactory for following the changes in surface temperature during evaporation studies. The radiometer was less sens tive to changes in temperature than the thermistors, being limited to changes in temperature of 0.1 C or greater. The radiometer has the advantage of measuring the temperature of a much thinner layer of water near the surface than the thermistor 0.1 mm as compared to 2 or 3 mm. It also responds more rapidly to changes in water temperature than the thermistor and does not require contact with the water. Author

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE