Method for measuring physical properties of material
AssigneeSumitomo Rubber Industries, Ltd.
InventorsIchiro Tominaga, Teruo Sasaki
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Abstract
A method for measuring the physical properties of material comprising the steps of producing a tone burst wave by a tone burst wave oscillator, radiating acoustic energy of the tone burst wave onto an object to be measured to cause vibrations therein, detecting the vibrations as a waveform of an alternating wave at a vibration receiver, obtaining a gradient of a line which connects peaks in a first transitional region of the waveform from which can be determined the physical properties, in particular the energy transfer characteristics and/or restitution coefficient of the object.
Claims4
A method for measuring physical properties of material which comprises the steps of
- producing a tone burst wave by a tone burst wave oscillator,
- radiating acoustic energy of said tone burst wave onto an object to be measured to cause vibrations therein,
- detecting said vibrations as a waveform of an alternating wave at a vibration receiver, and
- obtaining a gradient of a line which connects peaks in a first transitional region of said waveform corresponding to a first region where an amplitude of successive waves in the received waveforms is increasing to determine energy transfer characteristic of said object which is a ratio of a quantity of output energy to a quantity of input energy.
Dependencies are inferred from the claim text.