| 释义 |
ignitron Electronics.|ɪgˈnaɪtrɒn|
[f. ignite v., ignition + -tron.]
A kind of mercury-arc rectifier capable of handling large currents and having a pool cathode, a single anode, and an igniter to initiate the arc afresh in each cycle (the timing of this being used to control the output).
1933D. D. Knowles in Electronics VI. 164/1 The Ignitron* is the latest arrival in the rapidly growing family of industrial electronic tubes. It is a tube in which conductivity is established by igniting the arc. [*Note] Pronounced like the word ‘ignite’. 1951Engineering 14 Sept. 323/3 The ignitrons, which are water-cooled,..act as an electronic contactor which controls the current in the primary of the welding transformer. 1962Newnes Conc. Encycl. Electr. Engin. 380/2 The larger ratings of ignitron are constructed with a double-walled stainless steel envelope, water being circulated in the jacket so formed for cooling. 1967H. Cotton Adv. Electr. Technol. xv. 726 Typical applications of the ignitron are (a) small-power spot welding, (b) large-power control of variable-speed d.c. motors, such as certain types of colliery winder. |