| 释义 |
igniter|ɪgˈnaɪtə(r)|
[f. as prec. + -er1.]
1. a. One who ignites. b. A device to set fire to an explosive or combustible.
1883Q. Rev. Apr. 514 The slow-burning fuse would give its igniter a minute or so of grace to walk quietly away. 1884Health Exhib. Catal. 129/2 Patent Igniters and Instantaneous Fuses. 1886D. Clerk Gas Engine viii. 205 The first few explosions cause a condensation of water upon the points and the spark then fails... The igniters then require to be uncoupled. 1887Sci. Amer. 17 Sept. 187/2 An infernal machine..provided with a time exploder or igniter. 1902Min. Proc. Inst. Civil Eng. CXLIX. 453 The hydrocarbon vapour sucked in from the carburettor..causes the igniter to glow brightly. 1905H. J. Spooner Motors & Motoring 46 The principal features of the sparking plug or igniter. 1907Westm. Gaz. 18 Nov. 10/2 The low-tension plugs and igniters are neatly placed in the sides of the cylinder heads. 1950J. V. Casamassa Jet Aircraft Power Syst. xiv. 206 When the engine reaches a predetermined speed, the starter, ignition coils, and the flame igniters are automatically cut out. 1950Sci. News XV. 78 One class [of propellants], called hypergols, react as soon as they come together, a property which eliminates the need for an igniter of some sort. 1954J. W. T. Walsh Textbk. Illuminating Engin. (ed. 2) xii. 172 A special form of distance controller..switches on the igniter just before the gas is admitted to the burner. 1962F. I. Ordway et al. Basic Astronautics x. 417 The solid rocket motor is composed of a cylindrical combustion chamber, a nozzle, a solid propellant grain, and an igniter.
2. Electronics. Also ignitor. A small rod of some refractory material that dips into the pool of mercury in an ignitron and serves as an auxiliary anode for restriking the arc in each cycle.
1933Electronics VI. 166/1 At the present stage of development [of the ignitron] the instantaneous current required by the igniter to start the arc reliably is from 5 to 30 amperes. 1937A. V. Eastman Fund. Vacuum Tubes iv. 107 One of the major problems in the design of Ignitrons is to make certain that the anode will pick up the discharge as soon as the igniter strikes. 1952Young & Bueche Fund. Electronics & Control vi. 253 Because the ignitor can be controlled to cause initiation of the arc at any point in the positive half cycle, the average anode current flow can be controlled as in the case of thyratrons. 1962C. Susskind Encycl. Electronics 361/1 In pulse-type circuits where capacitors are discharged, the ignitor can be made to start the discharge in less than 1 µsec. |