Irrigation flow sensor systems and methods of detecting irrigation flow

This invention describes a system to measure water flow in an irrigation pipe. It uses a small paddle wheel with a magnet attached that spins as water flows past it. A sensor detects each time the magnet passes, generating an electrical pulse, which temporarily changes an electrical current. The frequency of these current changes indicates how fast the water is flowing, and this data can be sent to an external irrigation controller.

Why it matters: While the core sensing technology is mature, advancements in low-cost embedded systems and standardized communication protocols since 2024 could simplify integrating robust flow data into diverse smart irrigation platforms.

Status: Not in forceListed as no longer active. The specific reason is not in the record we hold.
How hard to build: ModerateCustom housing, paddle wheel, magnetic sensor, current loop, comms.

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