with the continuous development of intelligent, more and more intelligent home appliances into our life, intelligent home appliances have an important function, that is liquid level detection, this function can directly affect the user experience, so small home appliance water level detection liquid level method what? Non-contact liquid level sensor does not need to be installed in the water tank, suitable for the water tank does not need to move the equipment, the principle is the use of capacitance principle, low power consumption, sensitive response, compared to the floating ball switch, higher stability, stronger reliability. Photoelectric separation liquid level sensor is designed in the traditional structure of the prism on the water tank, prism and the water tank, the sensor in the outside of the water tank, the middle of the air, this method is suitable for the water tank needs to move equipment, the water tank without external structural interference, easier to clean, to avoid the sensor corner of bacteria breeding.
