IR thermometer thermal isolation tip assembly
First Claim
Patent Images
1. A thermometer having an IR tip assembly, the IR tip assembly comprising:
- an IR sensor disposed within said IR tip assembly;
a heat sink coupled to said IR sensor base;
a shroud overlying said IR sensor and said heat sink, said shroud including at least one cover attachment feature; and
an airflow feature configured to provide an airflow at least partially over an outer surface of the shroud.
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Abstract
An IR tip assembly includes a shroud having at least one feature that permits releasable attachment of a disposable cover fitted to a shroud. When the disposable cover is fitted to the shroud, at least one air gap is defined between the shroud and the disposable cover. An IR sensor disposed within the IR tip assembly is mechanically and thermally coupled to a heat sink. The at least one defined air gap creates a thermal isolation between the disposable cover and the disposed IR sensor. There can also be airflow through the at least one air gap. Apparatus and methods to create the airflow are described.
61 Citations
30 Claims
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1. A thermometer having an IR tip assembly, the IR tip assembly comprising:
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an IR sensor disposed within said IR tip assembly; a heat sink coupled to said IR sensor base; a shroud overlying said IR sensor and said heat sink, said shroud including at least one cover attachment feature; and an airflow feature configured to provide an airflow at least partially over an outer surface of the shroud. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 27)
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22. A method to enhance the thermal isolation of an IR thermometer IR sensor during a temperature measurement comprises the steps of:
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providing an IR thermometer having at least one air gap disposed between an IR sensor and a disposable cover; and causing airflow through said at least one air gap during a temperature measurement to reduce a temperature change of said IR sensor caused by undesired heat flow across said disposable cover. - View Dependent Claims (23, 24, 25, 26)
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28. A thermometer having an IR tip assembly, the IR tip assembly comprising:
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an IR sensor disposed within the IR tip assembly; a heat sink coupled to the IR sensor base; a shroud overlying the IR sensor and the heat sink, said shroud including a cover attachment feature; a cover attached to the shroud via the cover attachment feature; and an air gap disposed between an inner surface of the cover and an outer surface of the shroud; and an airflow feature configured to provide an airflow to the air gap. - View Dependent Claims (29, 30)
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Specification