Patent ID: 7404333
Filing Date: 2008-07-29
Classification: G01D

Abstract:
1. Sensor composed primarily of a protective casing that forms a hollow body with an external active surface and of a sensing element mounted in said hollow body and adjacent to one part of a front wall of the protective casing defining said active surface, the sensing element ( 3 ) being located at a distance from the internal surface ( 4 ′) of said part of the wall ( 4 ) of the hollow body ( 2 ) in such a way as to delineate an interstitial space ( 5 ) of small thickness (d) forming a mechanical and physical decoupling interface between said part of the wall ( 4 ) and said sensing element ( 3 ), and wherein the interstitial space ( 5 ) is at least partially filled with an intermediate layer ( 5 ″) of a flexible and elastically deformable alveolar material having shock and vibration absorbing and damping properties, forming an intermediate contact layer between part of the wall ( 4 ) and the surface opposite the sensing element ( 3 ).