AIRFLOW SENSOR WITH THERMAL CONDUCTIVITY & DIFFUSIVITY SENSING

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 downstreamresistive 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. 本发明的实施方案整体用于感测流体的热性质的传感器并且可包括：上游电阻元件，该上游电阻元件具有随温度变化的第一电阻；下游电阻元件，该下游电阻元件具有随温度变化的第二电阻，其中在流体的流动方向上，下游电阻元件位于上游电阻元件的下游；以及至少一个尾电阻器，该至少一个尾电阻器被配置为确定流体的一个或多个热性质，其中上游电阻元件和下游电阻元件操作性地