INDUCTIVELY INTERROGATED PASSIVE SENSOR APPARATUS
First Claim
1. A sensor apparatus which comprises:
- a first magnetic transducer which in use is positioned on a first side of a barrier; and
a second magnetic transducer which in use is positioned on a second side of the barrier opposite the first side, the second transducer comprising a magnetic or electrical property which is dependent upon a sensible condition on the second side of the barrier;
wherein in operation of the sensor apparatus the first transducer generates a first magnetic field which induces the second transducer to generate a second magnetic field that is dependent upon the magnetic or electrical property of the second transducer; and
wherein the first transducer detects the second magnetic field and in response thereto generates a signal which is representative of the sensible condition on the second side of the barrier.
5 Assignments
0 Petitions
Accused Products
Abstract
A sensor apparatus comprises a first magnetic transducer which in use is positioned on a first side of a barrier and a second magnetic transducer which in use is positioned on a second side of the barrier opposite the first side. The second transducer comprises a magnetic or electrical property which is dependent upon a sensible condition on the second side of the barrier, such as the pressure or temperature on the second side of the barrier. In operation, the first transducer generates a first magnetic field which induces the second transducer to generate a second magnetic field that is dependent upon the magnetic or electrical property of the second transducer. The first transducer detects the second magnetic field and generates a signal which is representative of the sensible condition on the second side of the barrier.
29 Citations
88 Claims
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1. A sensor apparatus which comprises:
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a first magnetic transducer which in use is positioned on a first side of a barrier; and a second magnetic transducer which in use is positioned on a second side of the barrier opposite the first side, the second transducer comprising a magnetic or electrical property which is dependent upon a sensible condition on the second side of the barrier; wherein in operation of the sensor apparatus the first transducer generates a first magnetic field which induces the second transducer to generate a second magnetic field that is dependent upon the magnetic or electrical property of the second transducer; and wherein the first transducer detects the second magnetic field and in response thereto generates a signal which is representative of the sensible condition on the second side of the barrier. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28)
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29. A sensor apparatus which comprises:
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a first magnetic transducer which in use is positioned on a first side of a conductive barrier; and a second magnetic transducer which in use is positioned on a second side of the barrier opposite the first side, the second transducer comprising a magnetic or electrical property which is dependent upon a sensible condition on the second side of the barrier; wherein in operation of the sensor apparatus the first transducer generates a first magnetic field which induces the second transducer to generate a second magnetic field that is dependent upon the magnetic or electrical property of the second transducer; and wherein the first transducer detects the second magnetic field and in response thereto generates a signal which is representative of the sensible condition on the second side of the barrier. - View Dependent Claims (30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56)
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57. A sensor apparatus which comprises:
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a first magnetic transducer which in use is positioned on a first side of a barrier; and a second magnetic transducer which in use is positioned on a second side of the barrier opposite the first side, the second transducer comprising a magnetic or electrical property which is dependent upon a sensible condition on the second side of the barrier; wherein in operation of the sensor apparatus the first transducer continuously generates a first magnetic field which induces the second transducer to continuously generate a second magnetic field that is dependent upon the magnetic or electrical property of the second transducer; and wherein as the first transducer is transmitting the first magnetic field it detects the second magnetic field and in response thereto generates a signal which is representative of the sensible condition on the second side of the barrier. - View Dependent Claims (58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84)
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85. A method for detecting a sensible condition on a first side of a barrier from a second side of the barrier opposite the first side, the method comprising:
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positioning a magnetic transducer on the first side of the barrier, the transducer comprising a magnetic or electrical property which is dependent upon a sensible condition on the first side of the barrier; generating a first magnetic field on the second side of the barrier to induce the transducer to generate a second magnetic field which is dependent upon the magnetic or electrical property of the transducer; detecting the second magnetic field on the second side of the barrier; and generating a signal in response to the second magnetic field which is representative of the sensible condition on the second side of the barrier. - View Dependent Claims (86, 87, 88)
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Specification