Acoustic emission toughness testing having smaller noise ratio
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United States of America Patent
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Dec 3, 2013
Grant Date -
Oct 6, 2011
app pub date -
Jun 2, 2011
filing date -
Apr 6, 2010
priority date (Note) -
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Abstract
A method, system and apparatus for testing properties of a hard component. The apparatus includes a holder, a component, an indenter, a sensor holder, and an acoustic sensor. The holder includes a first end and a second end opposite the first end. The first end defines a first cavity extending towards the second end. The component is positioned in the first cavity. The indenter is positioned adjacent to a portion of the component and applies a load onto the component. The sensor holder includes an upper portion, a lower portion, and a second cavity therein. The upper portion is coupled to the second end. The sensor is positioned within the second cavity. In some embodiments, the apparatus includes a rod coupled to the lower portion. The rod has a lower acoustic impedance than the sensor holder, thereby allowing sound waves to pass through the sensor holder and not be reflected back into the sensor.
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