Digital characterization of liquid gaging system sensors
First Claim
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1. A characterized liquid gaging system sensor, comprising:
- sensor means for sensing a depth of liquid in a tank at a particular location in the tank; and
storage means for storing characterization parameters, each parameter defining a relationship between a liquid depth and a value related to a liquid quantity, each parameter being based on tank shape and volume, on the location of the sensor means, and on a physical condition which affects the accuracy of the value related to the liquid quantity, the storage means comprising means for storing look up tables, there being a first look up table for storing a first set of parameters and a second look up table for storing a second set of parameters, the first and second set of parameters each representing a different best fit between the physical condition and the value related to the liquid quantity, the storage means being connected to the sensor means.
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Abstract
A characterized liquid gaging system sensor comprising sensor apparatus for determining a depth of liquid in a tank at a particular location in the tank. The sensor also includes storage apparatus for storing characterization parameters, each parameter being based on tank shape and volume and on the location of the sensor apparatus, each parameter defining a relationship between a liquid depth and a value related to a liquid quantity. The sensor apparatus and the storage apparatus are connected.
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Citations
22 Claims
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1. A characterized liquid gaging system sensor, comprising:
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sensor means for sensing a depth of liquid in a tank at a particular location in the tank; and storage means for storing characterization parameters, each parameter defining a relationship between a liquid depth and a value related to a liquid quantity, each parameter being based on tank shape and volume, on the location of the sensor means, and on a physical condition which affects the accuracy of the value related to the liquid quantity, the storage means comprising means for storing look up tables, there being a first look up table for storing a first set of parameters and a second look up table for storing a second set of parameters, the first and second set of parameters each representing a different best fit between the physical condition and the value related to the liquid quantity, the storage means being connected to the sensor means. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A characterized liquid gaging system sensor, comprising:
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sensor means for sensing a depth of liquid in a tank at a particular location in the tank; and storage means for storing characterization parameters, each parameter defining a volume increment related to a predetermined increment of liquid depth, each parameter being based on tank shape and volume, on the location of the sensor means, and on a physical condition which affects the accuracy of the volume increment, the storage means comprising means for storing look up tables, there being a first look up table for storing a first set of parameters and a second look up table for storing a second set of parameters, the first and second set of parameters each representing a different best fit between the physical condition and the volume increments, the storage means being connected to the sensor means. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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Specification