How does the sensor faucet work?

The faucets that we see in the toilets of many public places do not use valve switches like traditional faucets. Instead, they reach out and the water flows out. This is the sensor faucet. The use of sensor faucets is very convenient, and many families also choose to install sensor faucets. So, how does the sensor faucet work ?

How faucets work

The sensor faucet is mainly composed of an infrared emission tube, an infrared integrated receiving tube, a main control MCU, a solenoid valve and the like. The principle of sensor faucet is mainly through the principle of infrared emission to achieve water retention.

The sensor faucet is reflected by infrared. When a person's hand is placed in the infrared region of the faucet, the infrared rays emitted by the infrared-ray emitting tube are reflected by the hands to the infrared-ray receiving tube, and the signal is sent to the pulse through the micro-computer processing in the integrated line. Solenoid valve and solenoid valve receive the signal and then press the specified instruction to open the valve core to control the tap water; when the human hand leaves the infrared induction range, the solenoid valve does not receive the signal, and the solenoid valve core is reset through the internal spring to control the tap. Off the water.

The sensor faucet AC power supply or DC power supply, using infrared sensors, hand in the induction area, that is, water, leave the sensor area to close, stop the water, switch water is automatically completed by the sensor without touching the faucet, which can effectively prevent bacterial cross-infection.

The machine is controlled by a microcomputer and the optimal sensing distance is determined according to the shape of the basin. No manual adjustment is required. There is also a one-minute overtime washing and water shutoff function to prevent the waste of water resources caused by the foreign matter in the sensing range for a long time. The DC power supply uses the alkaline dry battery ( 6V, 3V, 4.5V), built-in filter to avoid impurities into the electromagnetic valve, easy to clean, beautiful appearance, solid structure, suitable for crowded places.