Premium
ACOUSTIC IMPULSE RESPONSE METHOD FOR MEASURING NATURAL FREQUENCY OF INTACT FRUITS AND PRELIMINARY APPLICATIONS TO INTERNAL QUALITY EVALUATION OF APPLES AND WATERMELONS
Author(s) -
YAMAMOTO HIROMICHI,
IWAMOTO MUTSUO,
HAGINUMA SHIKO
Publication year - 1980
Publication title -
journal of texture studies
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.593
H-Index - 54
eISSN - 1745-4603
pISSN - 0022-4901
DOI - 10.1111/j.1745-4603.1980.tb00312.x
Subject(s) - acoustics , impulse (physics) , materials science , mathematics , physics , quantum mechanics
A nondestructive textural quality measurement technique that uses an acoustic property was studied for apples and watermelons. By means of digital Fourier analysis, the natural frequencies of intact fruits are obtained from the sound which is produced by hitting them with a wooden ball pendulum. The reliability of this method was confirmed. This method requires simpler instrumentation than the sonic vibrating resonance method.