Vibration sensor array
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United States of America Patent
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Nov 26, 2013
Grant Date -
Feb 19, 2009
app pub date -
Mar 21, 2007
filing date -
Apr 3, 2006
priority date (Note) -
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Abstract
A vibration sensor arrangement (1) includes a vibrating mass (5) in permanent mechanical contact with a first side (3) of a piezoelectric element (2). The vibrating mass (5) includes a water-proof capsule (6) in which the piezoelectric element (2) is fixed. A dead weight (7) is in permanent mechanical contact with a second side (4) of the piezoelectric element (2) and is arranged in the water-proof capsule (6). A spring (8) is arranged between the dead weight (7) and the vibrating mass (5) and ensures permanent mechanical contact of the two masses (5,7) with the two sides (3,4) of the piezoelectric element (2). The vibration sensor arrangement (1) further includes first and second electric contacts (9,10) for picking up electric signals which are generated by the piezoelectric element (2) and for forwarding the signals to a recording device (11).
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