Accession Number : ADD000087

Title :   Optical Divider Point Assembly for Harmonic Spectrum Analysis.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON D C

Personal Author(s) : Northcutt,Marvin J ; Roeschlein,Eugene R

Report Date : 04 Dec 1973

Pagination or Media Count : 4

Abstract : The patent concerns an optical divider point assembly for harmonic spectrum analysis having a cylindrical drum with one or more sets of spiral lines. Each set originates at a point and diverges in equal separation and rotates within a housing having an elongated slot parallel to the drum axis to project reflected light from the spiral lines onto a supporting surface of frequency spectrums through a beam splitter plate to match the points of reflected light with frequency harmonics at the points of virtual image formation to identify same. The matched position is read out of a potentiometer position having its adjustable tap mechanically connected to rotate with the drum.

Descriptors :   *Spectrum analyzers, *Harmonic analyzers, *Patents, Optical equipment, Beam splitting

Subject Categories : Test Facilities, Equipment and Methods

Distribution Statement : APPROVED FOR PUBLIC RELEASE