What is a liquid level sensor

Liquid level sensor is a device used to detect liquid levels, widely used in industries, agriculture, environmental protection, and households. Its working principle is based on the principle that liquid static pressure is proportional to liquid height. By using isolated diffusion silicon sensitive elements or ceramic capacitive pressure sensitive sensors, static pressure is converted into electrical signals, which are then temperature compensated and linearly corrected, and finally converted into standard electrical signals (generally 4-20mA or 1-5VDC) to achieve automation control and safety protection.

Liquid level sensors play an important role in multiple fields. In industrial production, it is used to measure the liquid level height of equipment such as boilers, oil tanks, and water tanks to ensure production safety; In food and pharmaceutical production, it is used to measure the liquid level height in mixing tanks to ensure the stability and consistency of the production process; In sewage treatment and the oil and gas industry, it is used to monitor liquid level height, ensuring the safety and efficiency of transportation and storage.