Air duct airflow sensor

A method, comprising:

• measuring a first differential pressure measurement regarding a flow of fluid within a channel with a first pressure sensor, the first differential pressure measurement having an associated first uncertainty value;
• measuring a second differential pressure measurement regarding the flow with a second pressure sensor, the second differential pressure measurement having an associated second uncertainty value different than the first uncertainty value;
• sending, via the first pressure sensor, the first differential pressure measurement to a controller;
• sending, via the second pressure sensor, the second differential pressure measurement to the controller;
• determining, via the controller, a first flow measurement based on the first differential pressure measurement, the first flow measurement having a third uncertainty value based on the first uncertainty value;
• determining, via the controller, a second flow measurement based on the second differential pressure measurement, the second flow measurement having a fourth uncertainty value based on the second uncertainty value;
• and
• determining, via the controller, an estimated flow based on the first flow measurement, the second flow measurement, the third uncertainty value, and the fourth uncertainty value, the estimated flow having an associated fifth uncertainty value that is less than the third uncertainty value and the fourth uncertainty value.

A controller comprising one or more processors and a memory, the one or more processors configured to:

• measure, via a plurality of pressure sensors, a plurality of flow measurements regarding an flow within a channel;
• determine a plurality of uncertainty values regarding the plurality of flow pressure measurements, wherein a first uncertainty value of the plurality of uncertainty values is different than a second uncertainty value of the plurality of uncertainty values;
• and
• determine an estimated flow based on the plurality of flow measurements, wherein the estimated flow has an associated third uncertainty value that is less than the first uncertainty value and the second uncertainty value.