Accession Number:

AD0655644

Title:

AN EMPIRICAL STUDY OF ELF AND VLF SHIELD CANS,

Descriptive Note:

Corporate Author:

NAVY UNDERWATER SOUND LAB NEW LONDON CONN

Personal Author(s):

Report Date:

1967-05-23

Pagination or Media Count:

77.0

Abstract:

An empirical ELF and VLF study of 116- and 132-inch-thick shield cans stainless steel, aluminum, copper, Polyform, annealed Hipernom, and annealed and unannealed cold-rolled steel, mumetal, and Co-Netic was performed to investigate shielding effectiveness versus frequency characteristics with emphasis on the effects of machining notches, slots, holes, and louvers, dropping, annealing, welding, and disk grinding. The erratic nature of many of the shielding functions is explained by the resonance theory of shielding, and the shielding characteristics of certain shield cans are compared. The report also presents a brief introduction to the automated testing system used during this study to obtain the numerous shielding effectiveness versus frequency curves that were required. Author

Subject Categories:

  • Electrical and Electronic Equipment
  • Containers and Packaging

Distribution Statement:

APPROVED FOR PUBLIC RELEASE