APPLICATIONS
The BBS-X series of acousto elastic sensors is used to measure variations in compressive stress and load, which allows stress evaluation when the material’s modulus of elasticity is unknown or anisotropic and inhomogeneous. Typical examples are measurements of the load distribution under bridge bearing, where these instruments can be used include:

• Concrete under bridges bearings
• Tunnel supports
• Mining, pillars, walls
• Dams and nuclear power plants
• Structural members of buildings and bridges
• Piles and caissons
• Under anchor plate by rock bolts and rebars
DESCRIPTION
The sensor detects the compression of a metal body. This metal body is 2 components resin and protected housing. The housing is arranged in concrete or in the iron braid of reinforcement.
The compression are measured with ultrasonic pulse-echo method. In the case of concrete tension sensor, an ultrasonic sensor is included. The runtime in the measuring element is measured in high resolu