80GHz continuous level measurement technology

20 April 2021

A non-contact radar sensing technology from SICK opens up the prospect of robust and reliable real-time monitoring of the levels of liquids and bulk solids in challenging industrial applications.

The SicWave uses 80 gigahertz free-space radar to overcome the limitations of lower-frequency radar sensors or mechanical devices to achieve precision continuous level measurement.

The LBR SicWave is a bulk solids level sensor with a range up to 120m, while the LFR SicWave a fluid level sensor with a maximum range of 30m.  

The sensors are said to be one-thousand times more sensitive than previous-generation 26 GHz radar technologies, ensuring high availability in even the challenging environments with minimal maintenance requirements. The narrow field of view also avoids the potential for false signals caused by deposits on walls, or by other obstructions inside the vessel and ensures focused alignment to enable simple and rapid set-up.

Remote set-up and interrogation is straightforward – either using the on-board WPAN interface to a smartphone or tablet via Bluetooth or through standard HART communication, which also enables easy integration with higher level controls and diagnostic systems.  The sensors have a standard 4/20mA output, enabling signals to be monitored and displayed on a dashboard in a cloud environment using IIoT gateways.

Both sensors are available with a range of space-saving antenna designs, versatile flange or thread process connections and a variety of application-specific mounting options.  

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