| 单词 | reed switch |
| 释义 | > as lemmasreed switch reed switch n. (originally) a switch in which electrical contact is made by two reeds that are caused to touch one another; (later) spec. a small, sensitive, high-speed switching device consisting of a pair of contacts in a sealed glass tube, which can be brought together by the field of an electromagnet surrounding the tube. ΚΠ 1920 U.S. Patent 1,345,646 2/2 The opposite end of this winding is permanently connected to the fixed end of the reed-switch. 1976 F. Clifford Drummer xiv. 88 The detonator's incredibly engineered. Mallory battery, reed switches. 1995 J. Wilson Fishing Encycl. (2000) 56/1 Now superseded by alarms that operate through magnetic reed switches and photo-electronic cells, antenna-type buzzers..are still popular because they are inexpensive. < as lemmas |
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