Sensor Interface / Crack Sensor Node

The Crack Sensor Node can be used for a range of structural and geotechnical monitoring applications, including:

• Crack movement and displacement in concrete or masonry structures.
• Separation between piles and other structural elements.
• Movement in buildings and infrastructure.
• Expansion joint movement in bridges and other structures.
• Structural displacement in critical infrastructure.

The Crack Sensor Node connects to a compatible linear displacement sensor, which measures changes in distance or position between two points. Its high-precision sampling circuit powers the connected sensor and collects displacement measurements. These are transmitted wirelessly to a Gateway for remote monitoring and analysis.

Yes. The Crack Sensor Node can be connected to a suitable linear displacement sensor to monitor changes in crack width or movement in concrete and masonry structures. Automated wireless measurements allow engineers to track crack progression remotely and identify changes that may require further investigation.

Yes. The Crack Sensor Node can be used to monitor movement across expansion joints in structures such as bridges and other infrastructure. By collecting automated displacement measurements, it helps engineers understand how joints respond to changing environmental and structural conditions.

Yes. The Crack Sensor Node can be used with compatible linear displacement sensors to monitor separation or relative movement between piles and other structural elements. Wireless data collection enables movement to be tracked remotely, supporting monitoring during construction and throughout the operational life of an asset.

The Crack Sensor Node is available in one-channel and two-channel configurations. This allows users to connect one or two compatible linear displacement sensors to a single node, depending on the monitoring requirements and installation arrangement.

No. The Crack Sensor Node has an integrated long-life battery, eliminating the need for a mains power connection at the monitoring location. Its low-power design supports an expected battery life of 12–15 years, helping reduce maintenance requirements and site visits.

Senceive offers FlatMesh™ and GeoWAN™ versions of the Crack Sensor Node, allowing users to select the wireless communications platform best suited to their project.

The FlatMesh version operates within Senceive's FlatMesh wireless mesh network and supports remote over-the-air firmware upgrades via the Gateway. The GeoWAN version operates within Senceive's long-range GeoWAN wireless communications platform.

Yes. The Crack Sensor Node includes an integrated temperature sensor, allowing temperature measurements to be collected alongside displacement data. This provides additional environmental context when assessing structural movement, particularly where temperature-related expansion and contraction may influence measurements.

Measurements are transmitted wirelessly through the FlatMesh™ or GeoWAN™ communications network to a Gateway and onto WebMonitor™ or a 3rd party data visualisation platform. This allows users to remotely access displacement data, review changes over time and monitor structural behaviour without routinely visiting the site.