Accession Number:

AD0263417

Title:

DESIGN AND CONSTRUCTION OF A ROCKET-BORNE RADIOMETER FOR MEASUREMENT OF PLUME MODULATION

Descriptive Note:

Corporate Author:

BLOCK ASSOCIATES INC CAMBRIDGE MASS

Personal Author(s):

Report Date:

1960-10-31

Pagination or Media Count:

1.0

Abstract:

An infrared radiometer is described which was designed and constructed to measure the audio modulation of the plume radiation of an Aerobee Hi sounding rocket. Radiation between 2.65 microns and 2.85 microns modulated at frequencies between 2 and 2,000 c was converted to an electrical signal by a lead selenide detector and an electronic amplifier. The signal was then telemetered to earth by the rocket telemetry system. Portions of the signal corresponding to specific altitudes were placed on magnetic tape and played through a frequency analyzer. Plots of signal amplitude versus frequency at given altitudes could then be made. The instrument, called Esmeraldy 7, was mounted in a tail fin of the rocket. To avoid changing the aerodynamic effect of the fin, the outer dimensions of the instrument were constrained to fit inside the fin, which tapered in 2 directions. Author

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE