BBS 10_DS - Sensor for Compressive Stresses in Concrete

With ultrasound, the stress is captured in the building directly and in real time. All changes can be transferred online via the Internet or satellite radio of the elite. The sensors are either placed directly in the building, or subsequently attached to exposed to. Construction elements such as vehicles or bridges bearing may be easily monitored. The sensors are constantly active on or in the building. The simple design and small size allow the full application of all structures made of steel or concrete. All civil engineering works are static loads and stresses and small dynamic changes.
After the procedure, many important civil engineering works could be monitored worldwide. The costs of such controls are minimal.
The collapse of buildings goes hand in hand with a measurable change of stresses and loads. These are correlated with the stove data of seismic events worldwide available and checked for plausibility. This surveillance of buildings of all kinds on damage caused by disasters (soil landslides, earthquake, mudslide, etc.) also is possible.


Retrofitting the sensors in holes 1 inch are built into the concrete parts. With swelling mortar we a force-fit composite with concrete part achieved.

A low overall height of the sensors was elected to allow installation in boreholes for many different applications. The installation of the sensors is diameter holes approximately 1 inch.
Each sensor is clearly identifiable with the encoding of sensor in ROM.

Approx. up to 50.000 measurements per second can be made with a suitable control and evaluation unit.

The monitoring of all possible curtails and structural parameters during the construction and operation of buildings is the basis for the State and safety analysis of the building. On-line measuring method with the sensors from IBJ Technology force and load measurement, especially stress in concrete, are not to replace their validity and relevance.

Further applications arise as transducers for dynamic load changes.

The usability of buildings can be so online monitor.
According to seismic effects, changes in the load capacity of foundations are recognized immediately.