| 释义 |
▪ I. oscillograph, n.|əˈsɪləgrɑːf, -æ-|
[f. L. oscill-āre to swing + -o + -graph.]
1. An instrument for detecting and measuring the motion of a ship or of the sea.
1874E. Bertin Notes on Waves & Rolling 118 We may..hope for favourable results from the employment of the oscillograph with two pendulums which Mr. Froude has invented; the French Admiralty has caused a similar instrument to be constructed. 1896Trans. Inst. Naval Archit. XXXVII. 322 The graphic tracing of the movements of the sea with the help of the ‘oscillograph’ was undertaken. 1904C. H. Peabody Naval Archit. 344 Investigations of the rolling of ships in quiet water and among waves have been made..by aid of instruments known as oscillographs which have slow and quick pendulums, and registering devices.
2. [ad. F. oscillographe (A. Blondel 1893, in Compt. Rend. CXVI. 502).] Any instrument for displaying as a continuous curve the form of a varying voltage (e.g. that associated with an oscillatory or alternating current, or one derived from a bodily or non-electrical phenomenon); properly restricted to recording instruments, but freq. also used (esp. formerly) to denote the cathode-ray oscilloscope even without the camera needed for recording the display.
1893A. Blondel in Electrician 17 Mar. 571/1 The object of this communication is to describe some new galvanometric apparatus or oscillographs allowing one to determine by direct observation..the periodic curves of alternating currents. 1910G. W. Pierce Princ. Wireless Telegr. xviii. 181 The necessary sensitiveness..was finally obtained with a Braun's cathode tube oscillograph. 1913Electrician 7 Nov. 172/1 For many purposes, particularly in the teaching of alternating currents to elementary students and in the elucidation of certain problems in the higher branches of alternating-current engineering, the kathode-ray oscillograph is convenient and practical. 1925Lit. Digest 11 July 25/1 The stethoscope makes the heart-beat audible, and the oscillograph gives graphic presentation of its action. 1927, etc. [see oscilloscope d]. 1932News Chron. 23 Sept. 10/6 In one of the wooden huts at Slough I watched lightning flashes from thousands of miles away being recorded on the glass face of an oscillograph some 9in. in diameter. 1933E. W. Golding Electr. Measurements xv. 526 In some forms of cathode-ray oscillograph special provision is made for photographing the wave-form under observation. 1968M. Woodhouse Rock Baby ix. 93 The single hooded eye of an oscillograph peered from the shadows. 1974Sci. Amer. Mar. 94/3 In the electromechanical oscillograph..a tiny mirror is attached to the moving coil of a galvanometer, which oscillates in sympathy with the applied voltage.
3. = oscillogram.
1936Discovery June 197/2 Some excellent oscillographs are shown..of damped and undamped waves. 1957Electronics 1 May 163/2 The same tube inserted in a tapered S-band waveguide circuit produces an oscillograph as shown in Fig. 1B. 1957New Biol. XXIII. 35 Plate 11..shows some oscillographs (records made with the oscilloscope) of the songs of two species of insects. 1975Nature 5 June 514/3 The photographic and line illustrations are adequate, but the oscillographs and sonograms have reproduced poorly.
▪ II. oscillograph, v.|əˈsɪləgrɑːf, -æ-|
[f. prec. n.]
trans. To record or display by means of an oscillograph.
1910G. W. Pierce Princ. Wireless Telegr. xviii. 182 The drum must be driven synchronously with the alternating current which is being oscillographed. 1926Physical Rev. XXVIII. 554 The signal is detected, amplified, and oscillographed. |