Capacitive Level Sensors

A capacitive Level Sensor is also called an RF capacitance level meter. Capacitive Level Sensor is a liquid level (level) transmitter for liquid, oil, solid, and interface measurement.

Capacitive Level Sensors

Capacitive Level Sensors can be used for point level detection and continuous level measurement, particularly in liquids. The measuring principle is based on the change of the capacitance in a capacitor. The electrically conductive tank wall and a probe inside of the tank form a capacitor, The capacity changes of which are used to determine the level. This animation shows the measuring principle in conductive liquids and non-conductive liquids. The Capacitive Level Sensor can convert the changes of various levels and the height of the liquid level into standard current signals. Level Sensors can also support wireless transmission, RS485 digital communication transmission, etc.

Featured Capacitive Level Sensors

Extended reading: ​Solid flow meter | For bulk solids-powder-soybean-cement 

Capacitive level sensor working principle

The capacitive level sensor is based on the change of capacitance to perform liquid/level measurement. The level gauge electrode and the container form two electrodes of a capacitor. The capacitance value varies with the container.

The level of the material medium changes and changes, and is converted to the corresponding level output signal.

A basic requirement for measuring liquid/level with a capacitance level meter is the relative medium of the measured medium.

The electrical constant (the ratio of the dielectric constant of the measured medium to the air) should not change during the measurement.

Endress+Hauser has a good explanation video about Measuring Principle Capacitance. Let’s look together.

Video source:

If you need to purchase a liquid level gauge for CO2 Cylinders, you may like:

CO2 Cylinder | Portable Liquid Level Gauge

Procurement Guide: Ultrasonic liquid level sensors

Featured Level Sensors

Read more about: Factors To Consider When Selecting A Capacitive Level Sensor

Sino-Inst offers over 10 Capacitive Level Sensors for level measurement. About 50% of these are RF level meters, 40% is the tank level sensor.

A wide variety of Capacitive Level Sensors are available to you, such as free samples, paid samples.

Sino-Inst is a globally recognized supplier and manufacturer of Capacitive Level measurement instrumentation, located in China.

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This entry was posted in Level Transmitters, Capacitive Level by KimGuo11. Bookmark the permalink.

About KimGuo11

Wu Peng, born in 1980, is a highly respected and accomplished male engineer with extensive experience in the field of automation. With over 20 years of industry experience, Wu has made significant contributions to both academia and engineering projects. Throughout his career, Wu Peng has participated in numerous national and international engineering projects. Some of his most notable projects include the development of an intelligent control system for oil refineries, the design of a cutting-edge distributed control system for petrochemical plants, and the optimization of control algorithms for natural gas pipelines.