Geotechnics

Continuous monitoring of rock movements and fissure shifts

The fissurometer is a length variation sensor that measures changes in length via a linear potentiometer. It can be applied for rock formations or building structures to measure the movement and shift size of gaps and fissures between two walls that are positioned parallel or vertically to each other.

Measuring expansion and tension

An extensometer (strain sensor) is used to measure the elongation in situations of tension, compression or bending. In environmental monitoring extensometers are used to monitor buildings and rock formations and thus in road and railway construction as well as in civil protection. For this purpose analogue and incremental position sensors are applied. With their signal the elongation (strain) is calculated according to a reference value measured before.

Monitoring ground vibrations

Geophones are used to measure vibrations and concussions (shocks) in the ground and of big rock formations. The geophone transforms a mechanical vibration to an analogue voltage signal. The sensors are shock-resistant and most suitable for applications in the field and at extreme conditions. Sensitive capturing of even mild vibrations is possible. On demand it is possible to mount a vibrating plate together with the geophone for controlled and regular practice alarms.