A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Improved control circuit used to fire caps, control firing delay time and generate reference signals at time current starts flowing in cap circuit and at time cap detonates; these signals can be used to determine firing delay time of caps and time at which seismic wave is generated by explosion; cap is fired by means of condenser discharge, which is started by thyratron tube.
Improved control circuit used to fire caps, control firing delay time and generate reference signals at time current starts flowing in cap circuit and at time cap detonates; these signals can be used to determine firing delay time of caps and time at which seismic wave is generated by explosion; cap is fired by means of condenser discharge, which is started by thyratron tube.
Circuit for firing seismic blasting caps
U S Bur Mines -- Report Investigations
Duvall, W.I. (author)
1950
2 pages
2 Supp plates
Report
English
© Metadata Copyright Elsevier B. V. All rights reserved.
Probability analyses of initiation reliability of electric caps in blasting circuit
| British Library Online Contents | 2008
Firing blasting charges by induction sparks
| Engineering Index Backfile | 1900
Reducing accidents due to careless handling of blasting caps
| Engineering Index Backfile | 1928
Assessing seismic hazard during blasting
| Online Contents | 1967
Seismic effects of quarry blasting
| Engineering Index Backfile | 1942