Triggerable switching spark gap

Details Triggerable switching spark gap Triggerable switching spark gap

1990-10-31

1992-09-29

Yusko, Donald J.

Electric lamp and discharge devices

With gas or vapor

Three or more electrode discharge device

313603, 313631, 313637, H01J 1730

Patent

active

051516306

ABSTRACT:
A triggerable switching spark gap has two main electrodes, which are insulated from each other, and a galvanically controllable trigger electrode, which is configured in the center of a circular opening of one main electrode. A clearance (a) between the two main electrodes is greater by the factor 1.1 to 2.3, preferably by the factor 1.4 to 1.7, than the width (b) of the ring gap between the trigger electrode and the corresponding main electrode. Furthermore, the circumferential edge of the trigger electrode (6) arranged to be flush with the discharge surface of the corresponding main electrode has a radius of curvature less than or equal to 0.1 mm and the trigger electrode and the corresponding main electrode are coated with a silver-containing activating mass. The delay time of the switching spark gap is able to be reduced to values less than or equal to 0.5 .mu.s.

REFERENCES:
patent: 3230410 (1966-01-01), Hafkemeyer, Jr. et al.
patent: 3328632 (1967-06-01), Robinson
patent: 3715614 (1973-02-01), Linkroum
patent: 3725729 (1973-04-01), McDermott et al.
patent: 4604554 (1986-08-01), Wootton
patent: 4739439 (1988-04-01), Boy
patent: 4939418 (1990-07-01), Wootton
Soviet Inventions Illustrated, Issued 18 Mar. 1981, Derwent London & SU-A-738022.

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