Design of a new type of water meter with nonmagnetic and low power is described.All kinds of flow measurements are analyzed
and the principle of the nonmagnetic sensor which uses LC oscillating circuit to measure water flow are discussed in detail.The MSP430FW427 is used as control MCU.The function is realized by the SCAN IF module without IC circuit external
which improves the precision and sensitivity of flow measurement.The realization of the fluid flow measurement and the correlative design of hardware and software are introduced.