Low-power hardware design of the Vortex Flowmeter

Lowpower vortex flowmeter is applied to battery power with a temperature compensationof single-phase fluid measurement.It is a low power consumption and standard industrial instrument which is suitable for the pulse or frequency of the two-wire sensor output,measurement and display of the second flowrate.The flowrate meter is designed by using TI'sultra-low power MSP430F449 MCU.It has a battery charger,liquid crystal display,multi-output mode and power-down data protection storage features.