SELF-ACTIVATED NANOSCALE PIEZOELECTRIC MOTION SENSOR
First Claim
1. A strain sensor for measuring strain in a surface of an object, comprising:
- a. an insulating flexible substrate configured to be physically coupled to the object;
b. a first conductive contact mounted on the insulating substrate;
c. a second conductive contact mounted on the insulating substrate and spaced apart from the first conductive contact; and
d. a piezoelectric nanowire disposed adjacent to the insulating substrate and electrically coupled to both the first conductive contact and to the second conductive contact, wherein a Schottky barrier exists between the piezoelectric nanowire and the second conductive contact, wherein the piezoelectric nanowire is subject to strain when the surface of the object is subject to strain, thereby creating a voltage differential between the first conductive contact and the second conductive contact.
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Accused Products
Abstract
A strain sensor for measuring strain in a surface of an object includes an insulating flexible substrate, a first conductive contact, a second conductive contact and a piezoelectric nanowire. The insulating flexible substrate is coupled to the object. The first conductive contact and the second conductive contact are mounted on the insulating substrate. The piezoelectric nanowire is electrically coupled to the first conductive contact and the second conductive contact. The piezoelectric nanowire is subject to strain when the surface of the object is subject to strain, thereby creating a voltage differential therebetween. A trigger sensor includes a substrate, a piezoelectric nanowire and a conductive contact. The piezoelectric nanowire extends from the substrate. The conductive contact is disposed in relation to the piezoelectric nanowire so that a voltage differential between the substrate and the conductive contact when the substrate moves with the predetermined acceleration.
94 Citations
19 Claims
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1. A strain sensor for measuring strain in a surface of an object, comprising:
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a. an insulating flexible substrate configured to be physically coupled to the object; b. a first conductive contact mounted on the insulating substrate; c. a second conductive contact mounted on the insulating substrate and spaced apart from the first conductive contact; and d. a piezoelectric nanowire disposed adjacent to the insulating substrate and electrically coupled to both the first conductive contact and to the second conductive contact, wherein a Schottky barrier exists between the piezoelectric nanowire and the second conductive contact, wherein the piezoelectric nanowire is subject to strain when the surface of the object is subject to strain, thereby creating a voltage differential between the first conductive contact and the second conductive contact. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A method of making a strain sensor, comprising the actions of:
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a. placing a piezoelectric nanowire on a flexible substrate; b. placing a conductive substance on a first portion of the piezoelectric nanowire so as to form a first conductive contact; and c. placing the conductive substance on a second portion of the piezoelectric nanowire, spaced apart from the first portion of the piezoelectric nanowire so as to form a second conductive contact. - View Dependent Claims (8, 9, 10, 11, 12, 13)
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14. A trigger sensor, comprising:
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a. a substrate; b. a piezoelectric nanowire extending from the substrate; c. a conductive contact disposed in relation to the piezoelectric nanowire so that a Schottky barrier forms between the piezoelectric nanowire and the conductive contact when a the conductive substrate moves with a predetermined acceleration and so that a voltage differential between the substrate and the conductive contact when the substrate moves with the predetermined acceleration. - View Dependent Claims (15, 16, 17, 18, 19)
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Specification