US 11,856,360 B2
Vibration sensor
Peter Christian Post, Hoofddorp (NL); and Raymond Mögelin, Hoofddorp (NL)
Assigned to Sonion Nederland B.V., Hoofddorp (NL)
Filed by Sonion Nederland B.V., Hoofddorp (NL)
Filed on Feb. 23, 2022, as Appl. No. 17/678,423.
Application 17/678,423 is a continuation of application No. 16/269,404, filed on Feb. 6, 2019, granted, now 11,350,208.
Claims priority of application No. 18170039 (EP), filed on Apr. 30, 2018.
Prior Publication US 2022/0182753 A1, Jun. 9, 2022
Int. Cl. H04R 1/28 (2006.01); B81B 7/00 (2006.01); G01H 3/06 (2006.01); H04R 1/38 (2006.01)
CPC H04R 1/2807 (2013.01) [B81B 7/0016 (2013.01); G01H 3/06 (2013.01); H04R 1/38 (2013.01); B81B 2201/0257 (2013.01)] 23 Claims
OG exemplary drawing
 
1. A vibration sensor comprising:
a pressure generating element for generating pressure differences between a first volume and a second volume in response to vibrations of the vibration sensor, the first and second volumes being acoustically sealed from each other, wherein the pressure generating element includes a moveable element that is configured to interact directly with air of the first and second volumes; and
a pressure transducer for measuring pressure differences between the first and second volumes, wherein the pressure transducer and the pressure generating element are arranged in parallel relative to the first and second volumes, wherein the pressure generating element and the pressure transducer are arranged adjacent to each other such that the pressure generating element and the pressure transducer are directly exposed to portions of the first and second volumes.