Sensor arrangement
1 Assignment
0 Petitions
Accused Products
Abstract
The present invention relates to a system for detecting characteristics of an elastic structure (13, 22, 23, 32, 33, 93, 1202, 1302, 1402), said structure being provided with at least one sensor (111, 112, 14, 211, 212, 311, 312, 911, 1211, 1311, 1411) and said system comprising at least one detector (16, 416, 516, 916, 1316, 1416). The sensor comprises a deformable member, which upon deformation generates a signal convertible to a signal representing said characteristic, said sensor further comprises a passive transmitter and said detector a receiver for receiving said signal representing said characteristic.
28 Citations
83 Claims
-
1-33. -33. (canceled)
- 34. A system for detecting at least one physical characteristic of an elastic structure subjected to a force under a motion, said structure being provided with at least one sensor comprising two electrodes and a piezoelectric material, which upon deformation generates a charge displacement in the material giving rise to a voltage being directly proportional to the force causing the deformation and convertible to a signal representing said characteristic, and said system comprising at least one detector comprising a receiver for receiving said signal representing said characteristic, wherein said sensor is a passive sensor comprising a passive transmitter (transmitting antenna in the form of a conductor extending from an end of said sensor, and that a coupling capacitance is obtainable between the conductor and a receiving conductive element (receiving antenna) thus enabling contactless signal transmission (capacitive coupling) there between.
- 71. A sensor arrangement for incorporation into an elastic structure and for providing at least one physical characteristic of said structure when subjected to a force under a motion, said sensor comprising two electrodes and a piezoelectric material, which upon deformation generates a charge displacement in the material giving rise to a voltage being directly proportional to the force causing the deformation and convertible to a signal representing said characteristic, for providing a signal to a passive transmitting element and receivable by a receiver, wherein said sensor is a passive sensor comprising a passive transmitter (transmitting antenna) in the form of a conductor extending from an end of said sensor, and that a coupling capacitance is obtainable between the conductor and a receiving conductive element (receiving antenna) thus enabling contactless signal transmission (capacitive coupling) there between.
Specification