Accession Number : AD0603016

Title :   THE SIGNIFICANCE AND MEASUREMENT OF OPTICAL RE-ENTRY OBSERVABLES: VOLUME 2. PHOTOGRAPHIC SPECTROMETRY AND RADIOMETRY.

Descriptive Note : Technical information series,

Corporate Author : GENERAL ELECTRIC CO PHILADELPHIA PA MISSILE AND SPACE DIV

Personal Author(s) : Guttman,A.

Report Date : 27 JUL 1964

Pagination or Media Count : 42

Abstract : Field spectrometry and radiometry on rapidly-moving objects customarily utilize imaging instruments. The applicability of such instrumentation in radiometry is discussed with particular emphasis on photographic cine spectrographs, ballistic spectrographs, and ballistic and cine cameras. Appropriate radiant energy transfer equations for distant point, line, and area sources are given in order to clarify photographic signal interpretation and to define suitable calibrations and reduction procedures. Various types of photographic signal transfer functions are discussed. An example of source parameters derived from actual field measurements is presented to illustrate the degree of consistency and magnitude of errors encountered under actual conditions. (Author)

Descriptors :   (*SPECTROGRAPHIC CAMERAS, ATMOSPHERE ENTRY), (*OPTICAL TRACKING, REENTRY VEHICLES), (*REENTRY VEHICLES, OPTICAL TRACKING), SPECTROPHOTOMETERS, RADIOMETERS, ENVIRONMENTAL TESTS, OPTICAL IMAGES, INSTRUMENTATION, HIGH SPEED PHOTOGRAPHY, BALLISTIC CAMERAS, MEASUREMENT, EQUATIONS, CALIBRATION, TEMPERATURE, BLACKBODY RADIATION, MOLECULAR SPECTROSCOPY

Distribution Statement : APPROVED FOR PUBLIC RELEASE