liquid level sensor

Liquid level sensor is an intelligent device for measuring liquid height. It can accurately measure the height of liquid by non-contact or contact, so as to realize the monitoring and control of liquid. Liquid level sensors are widely used in industry, agriculture, environmental protection, medical treatment and other fields, and can play an important role in improving production efficiency, ensuring safe production and saving resources.

Working principle of liquid level sensor

The working principle of liquid level sensor is designed based on the difference of dielectric constant between liquid and air. When the dielectric constant of liquid and air is different, the liquid level sensor can determine the height of liquid level by measuring the dielectric constant above the liquid level. The contact measurement mode of liquid level sensor is realized by liquid level meter, and the non-contact measurement mode is realized by sound wave, infrared ray and other technologies.

Operating steps of liquid level sensor

The operation steps of liquid level sensor mainly include installation, calibration and use.

1. device

The installation of liquid level sensor needs to be selected according to specific application scenarios. Generally speaking, the liquid level sensor can be installed on the top or side of the liquid container, or it can be connected by pipes to measure the liquid level. When installing the liquid level sensor, it is necessary to pay attention to the position and direction of the sensor to ensure that it can accurately measure the liquid level height.

calibrate

The calibration of liquid level sensor is an important step to ensure its measurement accuracy. When calibrating the liquid level sensor, the liquid must be injected into the container first, and the liquid level must be stable. Then, connect the liquid level sensor to the reader for calibration. In the calibration process, it is necessary to adjust the sensitivity of the sensor according to the dielectric constant and liquid level height of the liquid to ensure its measurement accuracy meets the requirements.

use

When using the liquid level sensor, pay attention to the following aspects:

(1) Ensure the normal working state of the sensor and the stability of the connection between the sensor and the reader.

(2) Check the sensitivity and measurement accuracy of the sensor regularly, and carry out calibration and maintenance in time.

(3) During use, we should pay attention to the changes of parameters such as temperature and pressure of the liquid, and the influence of the tilt and vibration of the container on the liquid level sensor.

Application of liquid level sensor

Liquid level sensors are widely used in various fields, mainly including the following aspects:

(1) industrial application: the liquid level sensor can be used for liquid level monitoring and control in the process of liquid storage and transportation in chemical, pharmaceutical, food, beverage and other industries.

(2) Agricultural application: The liquid level sensor can be used for water level monitoring and control in agricultural irrigation, rice planting and other processes.

(3) Environmental protection application: The liquid level sensor can be used for liquid level monitoring and control in environmental protection fields such as sewage treatment and water quality monitoring.

(4) Medical application: The liquid level sensor can be used to monitor and control the liquid level in medical equipment, such as infusion and hemodialysis.