Scan lock and track fluid characterization and level sensor apparatus and method
First Claim
Patent Images
1. A liquid level sensing apparatus, comprising:
- a coaxial probe;
a transceiver for generating and receiving electrical pulses, connected to the probe; and
a digital signal processor connected to the transceiver to process electrical pulses,wherein the transceiver and digital signal processor form scan, lock, and track closed loops, andwherein the digital signal processor comprises a receiver gate control to control receiver gate operation.
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Abstract
A liquid characterization and level sensor with a coaxial probe attached to a closed loop servo circuitry combined with a DSP and novel algorithms to scan, lock and track signals to ascertain the level and purity of fluid in a container.
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Citations
28 Claims
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1. A liquid level sensing apparatus, comprising:
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a coaxial probe; a transceiver for generating and receiving electrical pulses, connected to the probe; and a digital signal processor connected to the transceiver to process electrical pulses, wherein the transceiver and digital signal processor form scan, lock, and track closed loops, and wherein the digital signal processor comprises a receiver gate control to control receiver gate operation. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method of scanning, locking, and tracking electrical impulses to determine fluid levels in a container comprising the steps of:
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providing a transceiver including a receiver switch connected to a coaxial probe positioned in the container, wherein the transceiver transmits electrical pulses guided by the probe into the container and receives electrical pulses reflected back from the container and guided by the probe; providing a DSP comprising a clock connected to the transceiver for generating electrical pulses and a receiver gate control for generating voltage command signals; generating an electrical pulse and transmitting to the probe into the container; generating and transmitting a control voltage from the DSP; controlling operation of the receiver switch with the control voltage; comparing the control voltage with the transmitted electrical pulses to determine a time differential between the transmit pulses and receiver gate operation; producing a dc output to represent the time differential; detecting an electrical pulse reflected back from the container; and
,processing the reflected pulse to determine fluid level. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28)
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Specification