Masters Theses

Abstract

"Instrumentation and techniques employing a constant current in a 4 ft. length of Nichrome resistance wire embedded in an explosive mixture were developed to measure detonation velocity in small diameter boreholes.

The resistance element technique was evaluated by detonating mixtures in iron and clay pipes, and it was shown that the current in the circuit was not constant. Velocity measurements varied from 8,000 fps to 16,000 fps. Low velocity material provided poor time - voltage traces.

The resistance element method was compared to a pin oscillograph technique, and an explanation was offered for observed differences in velocity. The standard deviation for the corrected resistance element velocity records was found to be approximately two and one-half times larger than the standard deviation for pin oscillograph velocity records"--Abstract, page ii.

Advisor(s)

Clark, George Bromley, 1912-

Committee Member(s)

Worley, Morris Thrane
Erkiletian, Dickran Hagop, Jr.
Pagano, Sylvester J., 1924-2006

Department(s)

Mining Engineering

Degree Name

M.S. in Mining Engineering

Sponsor(s)

Monsanto Chemical Company of St. Louis

Publisher

Missouri School of Mines and Metallurgy

Publication Date

1962

Pagination

vii, 60 pages

Note about bibliography

Includes bibliographical references (pages 43-45).

Rights

© 1962 William Stewart Breakey, All rights reserved.

Document Type

Thesis - Open Access

File Type

text

Language

English

Subject Headings

Explosives -- Testing
Detonation waves -- Measurement

Thesis Number

T 1389

Print OCLC #

5938093

Electronic OCLC #

982381465

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