| Автор | A E Guile |
| Автор | T J Lewis |
| Автор | S F Mehta |
| Дата выпуска | 1957-11-01 |
| dc.description | The velocities of d.c. arcs moving in air at atmospheric pressure between horizontal and parallel cylindrical electrodes have been measured. The arcs moved freely in straight regular tracks in an axial direction under the action of magnetic fields set up by the current flow in the electrodes. Ferrous and non-ferrous electrodes were used and it was found that the axial velocity increased with the current in all cases, but was very much greater in magnitude for the steel electrodes. The hypothesis that the magnetic properties of the steels were responsible for the higher velocities was tested by magnetizing these materials in the axial direction along the electrodes. The cathode and anode spots then described helical paths with the anode moving in an opposite sense to the cathode, the circumferential component of the velocity being provided by the axial flux. It was deduced that magnetic fields within the electrode surfaces determined the motion.It is suggested that transverse galvanomagnetic and thermomagnetic forces modify the electron emission and are responsible for the cathode motion. It appears that these forces also influence the motion of the anode spot. |
| Формат | application.pdf |
| Издатель | Institute of Physics Publishing |
| Название | Arc motion with magnetized electrodes |
| Тип | paper |
| DOI | 10.1088/0508-3443/8/11/304 |
| Print ISSN | 0508-3443 |
| Журнал | British Journal of Applied Physics |
| Том | 8 |
| Первая страница | 444 |
| Последняя страница | 448 |
| Аффилиация | A E Guile; Department of Electrical Engineering, Queen Mary College, London |
| Аффилиация | T J Lewis; Department of Electrical Engineering, Queen Mary College, London |
| Аффилиация | S F Mehta; Department of Electrical Engineering, Queen Mary College, London |
| Выпуск | 11 |
