The Bassett Convergence System is designed to measure delta X and delta Z deformations, in near real time in structures.

Primarily used in tunnels, particularly those such as illustrated below where clearances are extremely small, the system is robust, simple and proven.

The Soil Instruments Bassett convergence system uses pairs of solid state servo sensors arranged within short and long arms to provide delta x and delta z data in mm of a tunnel or other structure.

The system is supplied complete with a datalogger and Soil Instruments software to display data both as a graphical representation of the tunnel and with X & Z graphs for each point. The full I-Site alarm functionality can be built into the BCS system.

The Soil Instruments Bassett Convergence System is the only system officially authorised and endorsed by Dr Richard Bassett it's inventor. A paper has been published on the system by the Institution Of Civil Engineers in London, who awarded their Halcrow prize to the authors. This paper describes the system in detail and is available from Soil Instruments.

The Soil Instruments Bassett system can also be installed using Soil Instruments Cable Free digital radio system, significantly quickening installation time and removing the need for any cables.

Very low profile system can be fitted in areas of minimum clearance such as live railway tunnels.
Low cost, simple, rugged sensor technology requiring very low power to read.
Gives a complete delta x and delta z profile.
Must be automated via data acquisition and I-Site software.
Very well established track record on major projects across the world

Click here to open datasheet.

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