US Patent 10345130 Airflow sensor with thermal conductivity and diffusivity sensing
Patent 10345130 was granted and assigned to Honeywell on July, 2019 by the United States Patent and Trademark Office.
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Embodiments relate generally to a sensor for sensing a thermal property of a fluid and may comprise an upstream resistive element having a first resistance that changes with temperature; a downstream resistive element having a second resistance that changes with temperature, wherein the downstream resistive element is situated downstream of the upstream resistive element in the flow direction of the fluid; and at least one tail resistor configured to determine one or more thermal properties of the fluid, wherein the upstream resistive element and the downstream resistive element are operatively connected in a bridge circuit, wherein the at least one tail resistor is stable with temperature, and wherein the at least one tail resistor is electrically coupled to at least one of the upstream resistive element or the downstream resistive element.
US Patent 10345130 Airflow sensor with thermal conductivity and diffusivity sensing
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