Accession Number:

AD0669833

Title:

MEASUREMENT OF THE TIME-VARYING COMPONENT OF RADIATION FROM INFRARED SOURCES

Descriptive Note:

Technical Report

Corporate Author:

MICHIGAN UNIV ANN ARBOR ANN ARBOR

Personal Author(s):

Report Date:

1968-05-01

Pagination or Media Count:

52.0

Abstract:

Techniques for the calibration of a temporal radiometer were studied. The calibration described for either periodic or random fluctuations utilizes sinusoidally modulated radiation from a blackbody. A complete description is given of the data acquisition and analysis facilities which were assembled for this study and used to calibrate a test radiometer. The practical aspects of spectral analysis including the interplay among filter bandwidth, scan rate, data sample length, and averaging time are discussed, and a technique for measuring the noise equivalent bandwidth of the frequency-selective filter in the spectrum analyzer is described.

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE