Printed level sensor
First Claim
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1. A level sensing system comprising;
- a level sensor label configured to be associated with a container containing a material whose level is to be sensed, the level sensor label arrangement having a circuit including;
a capacitive structure configured to be associated with the container, wherein the capacitive structure is configured as two separate capacitive elements positioned a distance from each other;
a first inductive element arrangement in an electrical connection with the capacitive structure; and
a second inductive element arrangement in electrical connection with the first inductive element arrangement and the capacitive structure, wherein the electrical connection of the first inductive element arrangement and the second inductive element arrangement is an electrical series connection through a connector, and wherein the first inductive element arrangement and the second inductive element arrangement are in an electrical connection with the capacitive structure via connector lines.
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Abstract
The level sensor system includes a level sensor label configured to be associated with a container containing a material whose level is to be sensed, the level sensor label arrangement having a circuit which includes an inductive element electrically connected to a capacitive structure configured to be associated with the container.
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Citations
18 Claims
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1. A level sensing system comprising;
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a level sensor label configured to be associated with a container containing a material whose level is to be sensed, the level sensor label arrangement having a circuit including; a capacitive structure configured to be associated with the container, wherein the capacitive structure is configured as two separate capacitive elements positioned a distance from each other; a first inductive element arrangement in an electrical connection with the capacitive structure; and a second inductive element arrangement in electrical connection with the first inductive element arrangement and the capacitive structure, wherein the electrical connection of the first inductive element arrangement and the second inductive element arrangement is an electrical series connection through a connector, and wherein the first inductive element arrangement and the second inductive element arrangement are in an electrical connection with the capacitive structure via connector lines. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 18)
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11. A method of forming a level sensing system comprising:
forming a level sensor label including, printing a first capacitive element; printing a second capacitive element, separate from the first capacitive element, a predetermined distance from the first capacitive element, wherein the first capacitive element and the second capacitive element form a capacitive structure; printing a first inductive element in an electrical connection with the capacitive structure; printing a second inductive element in electrical connection arrangement with the first inductive element arrangement with the capacitive structure; and printing electrical connections between the capacitive structure and the inductive elements, wherein the electrical connection of the first inductive element arrangement and the second inductive element arrangement is an electrical series connection through a connector, and wherein the first inductive element arrangement and the second inductive element arrangement are in an electrical connection with the capacitive structure via connector lines. - View Dependent Claims (12, 13, 14, 15, 16, 17)
Specification