vibrographn.
/ˈvʌɪbrəɡrɑːf//ˈvʌɪbrəɡraf/ 1. = phonautograph n.
ΚΠ
1875 Encycl. Brit. I. 110/1 Greater accuracy [in studying the relation between pitch and vibration] may be attained with the so-called Vibrograph or Phonautograph.
2. An instrument for measuring or recording mechanical vibrations.
ΘΚΠ
the world > matter > physics > science of sound > vibration > instrument for analysing vibration > [noun] > with visible output
phonautograph1859
phonoscope1868
time marker1869
phonograph1875
phoneidoscope1878
harmonograph1879
tonophant1895
vibrograph1904
1904 Nature 25 Feb. Suppl. p. iii Vibrograph, or instrument for recording photographically vibrations of a building or of the ground.
1946 Nature 14 Sept. 361/2 A vibrograph and accelerometer..much used to obtain vibration records on ships at sea.
1965 Economist 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.
1970 Soviet Jrnl. Optical Technol. 37 456 A method is given..for the calculation of the amplitude-frequency and phase-frequency characteristics of a vibrograph for recording small angular vibrations.
Derivatives
ˈvibrogram n. a record produced by a vibrograph.
ΚΠ
1932 Jrnl. Royal Aeronaut. Soc. 36 209 Vibrograms were obtained showing the vibration of different parts of the fuselage at various frequencies.
1950 Engineering 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.
1975 Soviet Appl. Mech. XI. 445 (heading) Damping determination according to vibrograms of random oscillations in linear systems.
This entry has not yet been fully updated (first published 1986; most recently modified version published online September 2018).
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n.1875