Method and device for normalizing temperature variations
First Claim
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1. A method of sensing the temperature of a heated object associated with a heat source and having at least a first portion and a second portion, wherein the first portion is less affected by the heat source than the second portion, comprising:
- obtaining past temperature data relating to the heated object and associated with past temperature measurements;
capturing a thermal image of the heated object;
obtaining a reference temperature of the heated object based on the captured thermal image, wherein the reference temperature is associated with the first portion of the heated object; and
calculating a normalized hotspot temperature based on at least the obtained past temperature data, the captured thermal image, and the reference temperature to compensate for environmental factors associated with the heated object, whereinthe heated object is a molten metal vehicle, and wherein the first portion of the heated object is less affected by a molten metal than the second portion of the heated object, wherein the second portion is in contact with the molten metal.
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Abstract
A method of sensing the temperature of a heated object includes obtaining past temperature data relating to the heated object, capturing a thermal image of the heated object, obtaining a reference temperature of the heated object, and calculating a normalized hotspot temperature.
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Citations
12 Claims
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1. A method of sensing the temperature of a heated object associated with a heat source and having at least a first portion and a second portion, wherein the first portion is less affected by the heat source than the second portion, comprising:
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obtaining past temperature data relating to the heated object and associated with past temperature measurements; capturing a thermal image of the heated object; obtaining a reference temperature of the heated object based on the captured thermal image, wherein the reference temperature is associated with the first portion of the heated object; and calculating a normalized hotspot temperature based on at least the obtained past temperature data, the captured thermal image, and the reference temperature to compensate for environmental factors associated with the heated object, wherein the heated object is a molten metal vehicle, and wherein the first portion of the heated object is less affected by a molten metal than the second portion of the heated object, wherein the second portion is in contact with the molten metal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A system for sensing the temperature of a heated object, comprising:
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at least one thermal imager; a memory storing past temperature data associated with the heated object; and a controller communicably coupled to the thermal imager and to the memory, the controller being adapted to receive thermal image data associated with the heated object from the thermal imager and the past temperature data from the memory, obtain current temperature data from the thermal image, and calculate a normalized hotspot temperature from the current temperature data and the past temperature data to compensate for environmental factors associated with the heated object, wherein the past temperature data includes at least one of a past hotspot temperature and a past reference temperature, and wherein the past reference temperature is obtained from a portion of the heated object less affected by a molten metal than a portion of the heated object that is in contact with the molten metal. - View Dependent Claims (10)
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11. A system for sensing the temperature of a heated object, comprising:
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at least one thermal imager; a memory storing past temperature data associated with the heated object; and a controller communicably coupled to the thermal imager and to the memory, the controller being adapted to receive thermal image data associated with the heated object from the thermal imager and the past temperature data from the memory, obtain current temperature data from the thermal image, and calculate a normalized hotspot temperature from the current temperature data and the past temperature data to compensate for environmental factors associated with the heated object, wherein the current temperature data includes at least one of a hotspot temperature and a reference temperature, and wherein the reference temperature is obtained from a portion of the heated object less affected by a molten metal than a portion of the heated object that is in contact with the molten metal. - View Dependent Claims (12)
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Specification