| 释义 |
harmonograph|hɑːˈmɒnəgrɑːf, -æ-|
[f. as next + -graph.]
An instrument for tracing curves representing sonorous vibrations.
1879Jrnl. Sci. N.S. I. 508 Mr. W. J. Wilson exhibited a new harmonograph and figures drawn by it. 1880Athenæum 20 Nov. 679/1 Mr. Bosanquet..gave the mathematical theory of the curves drawn by the harmonograph. |