Extensometers

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Extensometers

GXM Magnetic Extensometer Range

The GXM Magnetic Extensometer range consists of precise instruments designed for monitoring settlement and deformation in soil and structures. They are widely used for geotechnical monitoring, including in embankments, foundations and critical structures.

They function by tracking the relative movement of magnetic targets within an access tube. A sensor probe detects the location of each target relative to a fixed reference point, allowing for precise measurement of the depth, position and total amount of settlement. The range features models such as:

GXM-100 (including the “P” and “T” models)
GXM-200 (including the “P” and “T” models)
GXM-300 (including the “i” model)

The GXM Range features robust designs, enabling reliable performance in harsh conditions, including saturated soils and construction sites. The range is compatible with most data collection systems and the modular designs allow for easily customisable installation. This makes the range more flexible to site and project requirements. The GXM Magnetic Extensometer range is a reliable and robust piece of geotechnical instrumentation. It can prove crucial to any project, enabling early detection of ground movement and supporting the safety and stability of projects.

Extensometers

In-Place Extensometer (IPX)

The In-Place Extensometer (IPX) from Osprey Measurement Systems is a versatile and advanced solution for monitoring ground movement, specifically designed to integrate seamlessly with existing magnetic extensometer installations, such as 25mm access tubes and 70mm inclinometer casings. The system is engineered to provide highly accurate settlement data, with sensors that align precisely with installed spider or plate magnets. The IPX’s use of a fibre-reinforced rod ensures stability and reliability in various environmental conditions. Data retrieval is streamlined through RS-485 communication, eliminating the need for complex data conversion processes, and allowing for immediate and actionable insights.

Extensometers

IPX Magnet system

The IPX Magnet System is engineered for detailed monitoring of ground movement, including both settlement and heave, in various geotechnical contexts. This system is centred around an access tube fitted with magnetic targets at precise intervals, which interact with a Reed Switch Probe to capture accurate data on ground displacement. It is particularly well-suited for applications involving foundations, excavations, embankments, and areas requiring large movement tracking. The system’s versatility allows it to be adapted to different site conditions, including boreholes and fill areas. The IPX Magnet System offers several configurations to ensure the system meets the specific needs of each project, providing reliable data crucial for assessing and managing ground stability. This adaptability makes the IPX Magnet System an essential tool for maintaining structural integrity and safety in complex geotechnical environments.