Accession Number : AD0260692

Title :   MARGINAL CHECKING TECHNIQUES STUDY

Corporate Author : BURROUGHS CORP PHILADELPHIA PA

Personal Author(s) : BARSAM,F.M.

Report Date : FEB 1961

Pagination or Media Count : 1

Abstract : A survey, study, and development program on marginal checking techniques was conducted. A theory of margin checking has been developed and is presented herein. On the basis of the theory, the conclusion is reached that there are two basic approaches to measuring margins-to-failure in different classes of circuits. These approaches are called indirec margin checking (IMC) and direct margin checking (DMC). The technique generally known as marginal checking is shown to be of the latter category. An advanced margin checking system was developed and proposed for use in digital equipment of the complexity of Atlas or SAGE. The concept is predominantly theoretical and not fully substantiated by hardware experience. Six IMC/DMC margin checking techniques, developed as an important part of this program, are described and evaluated. The results of the state-of-the-art survey are summarized, discussed, and analyzed. Abstracts are included of reports made available on the subject of marginal checking. (Author)

Descriptors :   *CIRCUITS, *TEST SETS, AUTOMATIC, COMPUTERS, DESIGN, DETECTION, ELECTRON TUBES, ELECTRONIC EQUIPMENT, FAILURE (MECHANICS), MAINTENANCE, MONITORS, RELIABILITY, SAFETY DEVICES, TEST EQUIPMENT, TEST METHODS, THEORY

Distribution Statement : APPROVED FOR PUBLIC RELEASE