Importance

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Abstract

Exemplary embodiments of the present disclosure are generally directed to a thermally-dissipative flow monitoring system. In exemplary embodiments, a solid state flow sensor system heats a first thermistor (“flow thermistor”) to a heat to” temperature and allows the first thermistor to cool to a “cool to” temperature. The flow sensor system measures the time it takes the first thermistor to reach a “heat to” temperature and/or a “cool to” temperature. These times can be used to determine if the flow rate is above or below a particular threshold (e.g., as in the case of a flow switch), or to determine the flow rate (e.g., as in the case of a flow sensor). The “heat to” temperature and “cool to” temperatures are set using a second thermistor (“fluid thermistor”) which is measures the surrounding fluid temperature.

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First Claim