Low-power water flow measurement featured in inductive sensing reference design

This reference design from Texas Instruments illustrates a highly-integrated solution for this application utilising an inductive sensing technique enabled by the CC1350 SimpleLink Wireless MCU and FemtoFET MOSFET. The design also affords the platform for integration of wireless communications such as wireless M-Bus, Sigfox, or a proprietary protocol. Water utility providers who want to add Automatic Meter Reading ability face the choice of substituting all of their existing meters or installing a simple electronic add-on module, that will precisely measure the water flow rate and wirelessly transmit the results. These add-on modules can afford the least expensive solution to provide AMR features to consumers.