| CPC H04R 1/222 (2013.01) [G01H 11/08 (2013.01); G01N 29/036 (2013.01); G01N 29/2406 (2013.01); G01N 29/2437 (2013.01); G01P 1/023 (2013.01); H04R 1/08 (2013.01); H04R 1/20 (2013.01); H04R 17/02 (2013.01); H04R 17/10 (2013.01); H04R 19/04 (2013.01); G01N 2291/014 (2013.01); G01N 2291/022 (2013.01)] | 20 Claims |

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1. A vibration sensing device, comprising:
a vibration sensor having a first resonant frequency; and
at least one vibration component is configured to transmit received vibrations to the vibration sensor, the at least one vibration component comprising a liquid arranged in a target cavity and a plate body forming a part of a cavity wall of the target cavity, wherein
the at least one vibration component provides at least one second resonant frequency for the vibration sensing device, and the at least one second resonant frequency is different from the first resonant frequency.
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