| 单词 |
vibrograph |
| 释义 |
vibrograph|ˈvaɪbrəʊgrɑf|
[f. vibro- + -graph.]
a. = phonautograph.
b. An instrument for measuring or recording mechanical vibrations.
1875Encycl. Brit. I. 110/1 Greater accuracy [in studying the relation between pitch and vibration] may be attained with the so-called Vibrograph or Phonautograph. 1904Nature 25 Feb. Suppl. p. iii, Vibrograph, or instrument for recording photographically vibrations of a building or of the ground. 1946[see accelerometer]. 1965Economist 25 Dec. 1434/1 It took them some time to work out the best way of getting the job done without causing too much damaging vibration in the [Abu Simbel] temples— vibrographs were installed to check that the danger level was not exceeded. 1970Soviet Jrnl. Optical Technol. XXXVII. 456 A method is given..for the calculation of the amplitude-frequency and phase-frequency characteristics of a vibrograph for recording small angular vibrations.
Hence ˈvibrogram, a record produced by a vibrograph.
1932Jrnl. R. Aeronaut. Soc. XXXVI. 209 Vibrograms were obtained showing the vibration of different parts of the fuselage at various frequencies. 1950Engineering 21 Apr. 431/2 The principal parameters of a vibrogram from which its effect on a building can be estimated are the maximum amplitude and the average frequency of the vibration. 1975Soviet Appl. Mech. XI. 445 (heading) Damping determination according to vibrograms of random oscillations in linear systems. |
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