Accession Number : AD0620554

Title :   ELECTROSTATIC DEFLECTION SYSTEMS FOR PLAN POSITION INDICATORS-II.

Descriptive Note : Interim rept. no. 2,

Corporate Author : NAVAL RESEARCH LAB WASHINGTON D C

Personal Author(s) : Dobbie,Clyde B.

Report Date : 11 OCT 1948

Pagination or Media Count : 14

Abstract : This report discusses factors affecting the performance of an electrostatic Plan Position Indicator (PPI) and methods of compensating for various errors in presentation. It includes descriptions of various systems for obtaining PPI traces by purely electronic means. One system eliminates the selsyn follower mechanism at the indicator by obtaining the antenna-position information from a sine potentiometer or Autosyn resolver phase-amplitude detector in such form that it can directly actuate the sweep generator. (Author)

Descriptors :   (*PLAN POSITION INDICATORS, ELECTRON OPTICS), (*ELECTROSTATICS, PLAN POSITION INDICATORS), DEFLECTION, ELECTROSTATIC FIELDS, CATHODE RAY TUBES, SWEEP GENERATORS, RADAR ANTENNAS, SYNCHRONIZATION(ELECTRONICS), ERRORS

Distribution Statement : APPROVED FOR PUBLIC RELEASE