CURRENT PAUSE DURING ELECTRIC EXPLOSION OF LITTLE WIRES IN THE AIR (TOKOVAYA PAUZA PRI ELEKTRICHESKOM VZRYVE PROVOLOCHEK V VOZDUKHE),
Abstract
A study of the nature of the interruption of current during the electrical explosion of fine wires in air is described. The interruption of current is the time interval between the end of the first and the beginning of the second current pulse flowing through the fine wire. An RLC circuit (R = 0.02 omega; L = 0.4 mu h; C = 300 mu h (consisting of two IM-5-15 capacitors connected in parallel) was used to send current through the fine wire. The capacitor was charged to 3.1 kv at the beginning of each test. An oscillograph was connected to the movable arm of a potentiometer connected across the wire sample. Samples of W, Mo, Ta, and Fe wires with lengths ranging from 5 to 150 mm and diameters from 0.05 to 0.30 mm were used in the tests. Test results for 50-mm long W, Mo, Ta, and Fe wires with diameters of 0.30, 0.14, and 0.24 mm are shown in Fig. 1. The duration of the interruption of current for wires made from above metals is more stable than that for copper wires. The interruption duration is a function of the wire length and diameter; it increases sharply with wire length. At high initial voltages across the capacitor current pauses are very short and it is difficult to establish their dependence on the wire diameter. Current interruption duration decreases with increasing initial voltage across the capacitor. Orig. art. has: 3 figures and 1 table. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Oct 31, 1967
- Accession Number
- AD0669299
Entities
People
- A. N. Tazitdinov
- K. I. Dolmatov
- Yu. I. Timokhina
Organizations
- National Air and Space Intelligence Center