Patent ID: 7216542

Claim:
A three-component piezoelectric vibration accelerometer with a sensitive element, comprising a piezoelectric cell made in the form of a rectangular parallelepiped with a square base, a substrate to which the said square base of the rectangular parallelepiped is fastened, a current-conducting layer located on faces of the rectangular parallelepiped, wherein edges of the rectangular parallelepiped being made free of the said current-conducting layer in such a way that each face of the rectangular parallelepiped being electrically isolated from the other faces, the current-conducting layer on each of the faces being made in the form of a rectangle the opposite sides of which being respectively parallel to the opposite edges of that face, a polar axis of the piezoelectric cell is perpendicular to the plane of fastening the piezoelectric cell to the substrate, the relation of the height h of the rectangular parallelepiped to the length b of the square base side is selected from the relation 0.3<h/b<1.2, and the matrix of piezoelectric cell modules is selected to be of the following type:  0 0 0 0 d 15 0 0 0 0 d 24 0 0 d 31 d 32 d 33 0 0 0  where d ij is a piezoelectric cell module (C/N), i is the piezoelectric field index, j is the deformation index, characterized in that the current-conducting layer is made of a hardened current-conducting glue used for fastening the square base of the rectangular parallelepiped to the substrate that is made dielectric, wherein for each of the side faces a piezoelectric cell charge pickup being made in one point located in the area of a vertex of the current-conducting layer on the side face.