单词 | sonograph |
释义 | sonographn.ΚΠ 1869 Courier-Jrnl. (Louisville, Kentucky) 23 Dec. 3/5 Spare us the sonograph, Mr. Philosopher, if you please. 1870 L. P. Brockett in One Hundred Years' Progress of U.S. 501/1 By means of this ‘sonograph’, as its inventor has named it, it is hoped to be able to record in characters readily legible by the initiated, a speech, however rapidly-delivered it is uttered. 1919 Bull. Sci. Lab. Denison Univ. 19 90 As to the development of new apparatus.., I would suggest two principles, to which we may provisionally give the names of sonoscope and sonograph,..the second eliminating all resonating and physically vibrating parts, and using a light-lever whose initial deflection is obtained by refraction as it passes through free sound-transmitting air. 2. Frequently in form sonagraph. Also with capital initial. An instrument which analyses sound according to its component frequencies and produces a graphical record of the results as a function of time. See sonogram n. 1b.Originally invented to analyse speech, the sonograph has been particularly important in the study of bird calls. ΘΚΠ the world > matter > physics > science of sound > vibration > instrument for analysing vibration > [noun] > with visible output > as graph or diagram sound spectrograph1945 audiospectrometer1946 sonograph1950 audiospectrograph1953 melograph1961 spectrograph1967 1950 J. Dreyfus-Graf in Jrnl. Acoustical Soc. Amer. 22 733/2 The sonograph..includes a microphone and an amplifier converting the oscillation in air V1 into an electrical one V2. This is decomposed into 6 partial oscillations..corresponding to the 6 principal formants of the mouth orchestra [i.e. principal resonating frequencies of speech]. 1953 J. 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. 1956 New Biol. 20 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. 1979 New Scientist 17 May 537/2 The sonagraph acts as a sonic prism. 2000 P. Kruth & H. Stobart Sound 8 Research into bird song has developed considerably over the past decades, largely thanks to the development of the sonograph in the 1950s. 3. Medicine. A device which uses echoes of ultrasonic pulses to delineate structures within the body; an ultrasonograph. Also occasionally: an image obtained by ultrasonography (= sonogram n. 2a); a medical examination by ultrasonography (= sonogram n. 2b). ΘΚΠ the world > health and disease > healing > diagnosis or prognosis > radiography or radiology > ultrasonography > [noun] > record B-scan1947 sonogram1950 sonograph1952 ultrasonogram1958 ultrasonograph1975 1952 Brit. Jrnl. Physical Med. 15 6/2 Attempts have been made to employ ultrasonic waves for diagnostic purposes by so-called sonographs produced by the reflection of the waves. 1972 Ultrasonics 10 198/3 The model 185 module, mounted in the sonograph T-M II diagnostic ultrasound system also features a continuous display of transducer angular position. 1985 Times of India 24 Nov. (Sunday Review section) 1/8 Getting hold of a machine like the CAT scan or a sonograph is one thing, learning to use it and interpret the data accurately, quite another. 1985 Times of India 24 Nov. (Sunday Review section) 1/8 Should she have another sonograph before the surgery, she asked. 2003 Med. Anthropol. Q. 17 512/1 He overrode the modern medical gaze of the sonograph, suggesting that the stomach is, in fact, distended but not due to fluid. 4. Oceanography and Limnology. An image of a particular area of ocean floor, lake bed, etc., obtained using side-scan sonar. See side scan n. and adj. ΚΠ 1970 Sci. Jrnl. Dec. 56/2 By 1964 the geological and economic value of obtaining sonographs of the continental shelf and uppermost continental slope was..evident. 1976 Physics Bull. Sept. 381/3 Figure 1 a..shows a sonograph of a portion of the seabed in the Bristol channel. 1990 A. Griffiths in D. A. Ardus & M. A. Champ Ocean Resources I. v. 63 Colour coding can help to identify any similarities, or variations, that occur on the sonograph. 2005 A. Crone & E. Campbell Crannog of First Millennium AD iii. 22/1 Rock, gravel and wood..appear darker [than silt, sand, or mud] on a mixed lakebed sonograph. This entry has been updated (OED Third Edition, June 2017; most recently modified version published online March 2022). < |
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