Water flow sensor is a kind of water flow induction instrument which output pulse, current or voltage signal through induction to the water flow. The output of the signal has a certain linearly proportional to the water flow, thus can be served to the management of water control and flow calculation depend on the relevant conversation formula and comparison curve. Actually, as a core component of water flow sensor, water flow sensor magnet has long been a typical application of injection molded ferrite magnet.
Basic Principle of Water Flow Sensor
Water flow sensor is mainly composed of copper valve body, water flow rotor assembly, steady flow system and hall component. Water flow sensor is usually mounted on the inlet of the heater to measure influent flow, and magnetic rotor assembly rotates when water flow through it. Hall component output and feedback corresponding pulse signal to controller, then controller adjust current of proportional valve and hence gas usage according to the flow rate.
About Water Flow Sensor Magnets
Water flow rotor assembly mainly consists of turbine switch housing, magnetic rotor, and brake ring. Water flow sensor magnet is essentially a hall effect sensor magnet. Hall component will conduct when different magnetic poles toward it, then cut off once away.
