Accession Number:

AD0423017

Title:

FREE AIR THERMOMETER DEVELOPMENT MODEL 14-201, SERIAL 101.

Descriptive Note:

Final technical summary rept.,

Corporate Author:

BARNES ENGINEERING CO STAMFORD CT

Personal Author(s):

• Kanzler, R. J.

Report Date:

1963-09-27

Pagination or Media Count:

1.0

Abstract:

A radiometric thermometer has been designed and fabricated for routine measurement of long path lengths of air from a moving aircraft. It measures the radiation emitted from atmospheric CO2 in a narrow wavelength region centered on the CO2 band at 15 microns, and compares this radiation with the emission from a reference blackbody. Their difference is then related empirically to air temperature. The instruments operation is unaffected by ambient thermal conditions because of a novel arrangement of thermostated optical components. As a result, absolute measurement of air temperature is made to 0.5C over a target temperature range of -60 C to 30 C. Author

Descriptors:

• *THERMOMETERS
• RADIOMETERS
• AIR
• AIRCRAFT
• CARBON DIOXIDE
• EMISSIVITY
• BLACKBODY RADIATION
• TEMPERATURE
• THERMOSTATS
• MEASUREMENT
• ELECTROMAGNETIC WAVE FILTERS
• BANDWIDTH
• SENSITIVITY

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE