| 释义 |
sonograph|ˈsəʊnəgrɑːf, -æ-|
[f. sono- + -graph.]
1. Also sonagraph and with capital initial. An instrument which analyses sound into its component frequencies and produces a graphical record of the results.
Sonagraph is registered as a proprietary term in the U.S.
1951Official Gaz. (U.S. Patent Office) 14 Aug. 345/2 Kay Electric Company, Pine Brook, N.J... Sona-graph... For instrument which is a sound spectrograph which produces permanent visual records showing distribution of energy vs. both frequency and time. Claims use since October 1948. 1953J. B. Carroll Study of Lang. vii. 206 The ‘visible-speech’ machine developed in the Bell Telephone Laboratories..produces the same type of record as does the Sonagraph, but on a continuous, transitory basis. 1954Nature 13 Mar. 465/1 All this was changed by the invention of the sound spectrograph, now known commercially as the ‘Sonograph’. 1956New Biol. XX. 78 The structure of Chaffinch calls has been studied by making recordings on discs or magnetic tapes, and then analysing them on a sound spectrograph, or sonograph. 1976J. M. Brownjohn tr. Kirst's Time for Payment v. 108 The Sonograph can pick up voice frequencies and record them. 1979New Scientist 17 May 537/2 The sonagraph acts as a sonic prism.
2. An image of a tract of seabed obtained by means of side-scan sonar.
1970Sci. Jrnl. Dec. 56/2 By 1964 the geological and economic value of obtaining sonographs of the continental shelf and uppermost continental slope was so evident that the National Institute of Oceanography decided to explore the possibility of adapting the same method for examination of the deeper lying ocean floors. 1974Nature 15 Feb. 453/2 Between this trench and the Italian coast alongslope tectonic trends are seen on sonographs. 1976Physics Bull. Sept. 381/3 Figure 1 a..shows a sonograph of a portion of the seabed in the Bristol channel. |