Optically powered remotely interrogated liquid gauging system
First Claim
1. An optically powered pressure sensor for sensing pressure of a liquid in a tank comprising:
- a hermetically sealed housing with at least a portion of the housing having a diaphragm, the hermetically sealed housing forms at least a portion of a hermetically sealed wall of the tank;
at least one sensor within the hermetically sealed housing configured to sense the pressure of the liquid;
at least one optical emitter configured to transmit data corresponding to the sensed pressure; and
a photocell array configured to receive light and provide power to the at least one sensor and the at least one optical emitter.
1 Assignment
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Accused Products
Abstract
An optically powered pressure sensor for sensing pressure of a liquid in a tank includes a hermetically sealed housing with at least a portion of the housing having a diaphragm, at least one sensor within the hermetically sealed housing, at least one optical emitter, and a photocell array. The hermetically sealed housing forms at least a portion of a hermetically sealed wall of the tank. The at least one sensor within the hermetically sealed housing is configured to sense the pressure of the liquid. The at least one optical emitter is configured to transmit data corresponding to the sensed pressure. The photocell array is configured to receive light and provide power to the at least one sensor and the at least one optical emitter.
15 Citations
19 Claims
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1. An optically powered pressure sensor for sensing pressure of a liquid in a tank comprising:
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a hermetically sealed housing with at least a portion of the housing having a diaphragm, the hermetically sealed housing forms at least a portion of a hermetically sealed wall of the tank; at least one sensor within the hermetically sealed housing configured to sense the pressure of the liquid; at least one optical emitter configured to transmit data corresponding to the sensed pressure; and a photocell array configured to receive light and provide power to the at least one sensor and the at least one optical emitter. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A system comprising:
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an optically powered pressure sensor for sensing pressure of a liquid in a tank comprising; a hermetically sealed housing with at least a portion of the housing having a diaphragm, the hermetically sealed housing forms at least a portion of a hermetically sealed wall of the tank; at least one sensor within the hermetically sealed housing configured to sense the pressure of the liquid; at least one optical emitter configured to transmit data corresponding to the sensed pressure of the liquid; and a photocell array configured to receive light and provide power to the at least one sensor and the at least one optical emitter; and an optical interrogator configured to provide high power light to the photocell array and receive data from the at least one optical emitter. - View Dependent Claims (8, 9, 10, 11, 12, 13, 14)
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15. A method comprising:
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receiving light from an optical interrogator via a photocell array; generating, in response to receiving the light, power from the received light using the photocell array; sensing, in response to generating the power, a pressure of a liquid using at least one sensor, the at least one sensor powered by the photocell array; and transmitting, in response to measuring the pressure, data corresponding to the pressure of the liquid using at least one optical emitter. - View Dependent Claims (16, 17, 18, 19)
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Specification