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1. (WO1991006013) THREE-COMPONENT PIEZOELECTRIC ACCELEROMETER
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1991/006013 International Application No.: PCT/SU1989/000273
Publication Date: 02.05.1991 International Filing Date: 23.10.1989
IPC:
G01P 15/09 (2006.01) ,G01P 15/18 (2013.01)
G PHYSICS
01
MEASURING; TESTING
P
MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION OR SHOCK; INDICATING PRESENCE OR ABSENCE OF MOVEMENT;  INDICATING DIRECTION OF MOVEMENT 
15
Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration
02
by making use of inertia forces
08
with conversion into electric or magnetic values
09
by piezo-electric pick-up
G PHYSICS
01
MEASURING; TESTING
P
MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION OR SHOCK; INDICATING PRESENCE OR ABSENCE OF MOVEMENT;  INDICATING DIRECTION OF MOVEMENT 
15
Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration
18
in two or more dimensions
Applicants:
VSESOJUZNOE KHOZRASCHETNOE VNESHNEEKONOMICHESKOE OBIEDINENIE 'TEKHSNABEXPORT' [SU/SU]; Staromonetny per., 26 Moscow, 109180, SU
Inventors:
SMIRNOV, Vladimir Vasilievich; SU
KIRPICHEV, Alexandr Alexandrovich; SU
Agent:
THE USSR CHAMBER OF COMMERCE AND INDUSTRY; ul. Kuibysheva, 5/2 Moscow, 103735, SU
Priority Data:
Title (EN) THREE-COMPONENT PIEZOELECTRIC ACCELEROMETER
(FR) ACCELEROMETRE PIEZOELECTRIQUE A TROIS COMPOSANTS
Abstract:
(EN) A three-component piezoelectric accelerometer is based on three identical sensitive piezoelements (1, 2, 3), the maximum sensitivity axes (4, 5) of the first (1) and the second (2) piezoelement being mutually perpendicular and being located in the same plane, the maximum sensitivity axis (6) of the third piezoelement (3) being perpendicular to the plane of the maximum sensitivity axes (4, 5) of the first (1) and the second (2) piezoelement and intersecting it in a point (7) located on the bisectrix (8) of the intersection angle between the maximum sensitivity axes (4, 5) of the first (1) and the second (2) piezoelement, and all the piezoelements (1, 2, 3) being located on the same side of the vertex (9) of said angle. The current tappings (10, 11, 12) for receiving the charge of one polarity are electrically interconnected and mechanically combined into one unit (13), the current tappings (14, 15, 16) for receiving the charge of the opposite polarity are electrically insulated and mechanically combined into the same unit (13) embraced by a stiffener (17) and the direction of the current tappings (14, 15, 16) in said unit (13) is perpendicular to said plane and intersects it in a point located in immediate proximity to the vertex of said angle.
(FR) Un accéléromètre piézoélectrique à trois composants se compose de trois piézoéléments (1, 2, 3) sensibles, identiques, les axes (4, 5) de sensibilité maximum des premier (1) et second (2) piézoéléments étant mutuellement perpendiculaires, et se trouvant dans le même plan, l'axe (6) de sensibilité maximum du troisième piézoélément (3) étant perpendiculaire au plan des axes (4, 5) de sensibilité maximum des premier (1) et second (2) piézoéléments, l'entrecoupant au niveau d'un point (7) situé sur la bisectrice (8) de l'angle d'intersection entre les axes (4, 5) de sensibilité maximum des premier (1) et second (2) piézoéléments, et tous les piézoéléments (1, 2, 3) se trouvant du même côté du sommet (9) dudit angle. Les prises de courant (10, 11, 12) permettant de recevoir la charge d'une polarité, sont interconnectées électriquement et combinées mécaniquement en une unité (13), les prises de courant (14, 15, 16) recevant la charge de la polarité opposée sont isolées électriquement et combinées mécaniquement dans la même unité (13) entourée par raidisseur (17), et le sens des prises de courant (14, 15, 16) se trouvant dans ladite unité (13) est perpendiculaire audit plan et l'entrecoupe au niveau d'un point situé à proximité immédiate au sommet dudit angle.
Designated States: FI, HU, JP
European Patent Office (AT, BE, CH, DE, FR, GB, IT, LU, NL, SE)
Publication Language: Russian (RU)
Filing Language: Russian (RU)
Also published as:
EP0451275