Electrodes embedded in the front of the capacitive liquid level sensor detect changes in the capacitance as the fluid nears the sensor face. Video describing how capacitive liquid level sensors work. The capacitive level sensor has the conducting plates in the form of electrically isolated aluminium tubes, a smaller tube in a larger tube. The space between the tubes is the dielectric.

When the tube is empty, the space is occupied by air.

Out-of-Phase (OoP) technique eliminates any proximity interference such as a human hand either nearby or in contact with the container. Rigid-flex circuit allows the sensors to be placed on various shaped surfaces. A guide to understanding how a capacitance level sensor works. Find all the manufacturers of capacitive level sensor and contact them directly on DirectIndustry.

Liquid height resolution 1mm. CONTACT MOLEX ABOUT THIS PRODUCT . Capacitive Fluid Level Sensors. The sensors can be designed to sense material with .

It has, typically, high-impedance sensor, particularly at low frequencies, as clear from the impedance (reactance) expression for a capacitor. Also, capacitive sensor is a non- contacting device in the common usage. In this research, water level sensor. Our capacitive level technology accurately measures the change in fluid level within standard and irregular tanks.

As the liquid level changes, the amount of dielectric material between the plates changes, which causes the capacitance to change as well. A second pair of capacitive sensors (shown as C2) is used as a reference. Balluff capacitive sensors detect objects and the fill level of materials, liquids, pellets, and powders directly or through a non-metallic container wall including mini capacitive sensors, level sensors , flexible capacitive sensors and analog capacitive sensors. Built-in Amplifiers to save space.

Maximum measurement resolution is achieved with this level sensor. Thanks to having no moving parts the level sensor is wear free and therefore maintenance free. Small changes in level create large changes in frequency.

As a result Pointek capacitance level switshes have greater sensitivity and consistently outperform conventional devices. With their robust aluminum enclosures and process connections, Siemens Pointek switches are proven superior performers even in tough bulk . Figure 2: Ultrasonic liquid level sensor. Conductivity measurement: Two conductive electrodes are used to measure conductivity.

This method is reliable, compared to mechanical and ultrasonic measurements, but it cannot be used for beverages or flammable liquids. Wide selection of capacitive level sensor by OMEGA Engineering.

Order online with live technical customer support. Solid-state capacitive liquid level sensors for fuel, oil, water and other liquids. Standard and custom level sensor configurations offering high accuracy and long -term reliability in harsh environments.

The specified applications including proximity detection, gesture recognition and liquid level sensing. For limit level sensing of conductive liquids (water).