On-Site Magazine

Digital sensor for predictive monitoring

By Adam Freill   

Bridges Concrete Infrastructure

Developed to help prevent civil disasters, Heidenhain’s ESR digital strain sensor is available to monitor the structural health of such structures as bridges and buildings to provide preventative maintenance information.

A fatigue-free measurement device that provides high-resolution digital input into a system of choice, the sensor offers structural engineers and inspectors the ability to detect and analyze acute risk and continual loading on a bridge or building, thus monitoring strain and allowing them to make necessary adjustments to avoid potential tragedies.

The sensor can detect strain of down to 0.025 microns per metre and measure dynamic vibration of up to 30 kHz.  It has a measuring range of plus-or-minus 5,000 microns per metre, can operate in a temperature range from -40°C to +100°C, and is housed in an IP66-rated enclosure.

Easy to install and transferable to other locations, it is suitable for use in exposed conditions and harsh environments.




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