Perimeter mounted polymeric piezoelectric transducer pad
First Claim
Patent Images
1. A force measuring device for detecting force and changes in force comprising:
- a support formed of a resilient locally compressible material, said support being defined by a front surface for randomly receiving the force applied on discrete portions thereof, a rear surface in opposed relation to said front surface, and a peripheral side wall circumscribing and bounding said front surface and said rear surface, the area of said front surface having a substantially greater area than the area of said side wall;
a flexible polymeric piezoelectric transducer coupled to said side wall, said transducer being stressed and yielding an electrical output signal in accordance with said force applied on said discrete portions.
3 Assignments
0 Petitions
Accused Products
Abstract
A force pad is provided with a flexible polymeric piezoelectric transducer strip mounted on the perimeter of a resilient support pad for measuring force and change in force in industrial, medical and sports applications.
-
Citations
16 Claims
-
1. A force measuring device for detecting force and changes in force comprising:
-
a support formed of a resilient locally compressible material, said support being defined by a front surface for randomly receiving the force applied on discrete portions thereof, a rear surface in opposed relation to said front surface, and a peripheral side wall circumscribing and bounding said front surface and said rear surface, the area of said front surface having a substantially greater area than the area of said side wall; a flexible polymeric piezoelectric transducer coupled to said side wall, said transducer being stressed and yielding an electrical output signal in accordance with said force applied on said discrete portions. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
-
-
14. A force measuring device for indicating at least one value related to movement on the device comprising:
-
a support formed of a resilient locally compressible material, said support being defined by a front surface for randomly receiving the movement when applied on discrete portions thereof, a rear surface in opposed relation to said front surface, and a peripheral side wall transverse to said front surface and said rear surface, said side wall circumscribing and bounding said front surface and said rear surface, the area of said front surface having a substantially greater area than the area of said side wall; a flexible polymeric piezoelectric transducer, means acoustically coupling and mechanically mounting said piezoelectric transducer to said side wall, said transducer providing an electrical signal in response to a change of said at least one value of a characteristic of said movement.
-
-
15. A detecting device for detecting and outputting randomly located loadings, comprising:
- a load receiving member formed of a homogeneous resilient material which is locally deformable and substantially uniform in elastic constant, said load receiving member being defined by a cylindrical side wall, a top wall and a bottom wall, said side wall having a substantially uniform height said top wall and said bottom wall being substantially parallel, said top wall receiving said randomly located loadings and having a substantially greater area than the area of said side wall;
an elongated flexible polymeric piezoelectric transducer strip engaging substantially the entire perimeter of said side wall; and
pressure sensitive adhesive means securing said transducer strip to said side wall, said transducer strip outputting an electrical signal upon and in accordance with said random loadings of said top wall. - View Dependent Claims (16)
- a load receiving member formed of a homogeneous resilient material which is locally deformable and substantially uniform in elastic constant, said load receiving member being defined by a cylindrical side wall, a top wall and a bottom wall, said side wall having a substantially uniform height said top wall and said bottom wall being substantially parallel, said top wall receiving said randomly located loadings and having a substantially greater area than the area of said side wall;
Specification