07554 Korbußen/b. Gera
Tel.: 036602-141 0
Fax: 036602-141 41
Main contact person:
Mrs. Franziska Mittag
The surface of the earth is constantly moving. Liftings and lowerings occur wherever fault zones or weakness zones are found in the Earth's crust or human activities have permanently changed the earth.
These processes are often recognized only when damage has already occurred to plants, buildings or roads.
With the help of SAR interferometry it is possible to recognize such movements during an early stage.
The basis for this technology is the evaluation of the phase difference of the microwaves reflected from the surface of the earth.
On the one hand, this allows the derivation of very precise elevation models from two images of the same area independently of the weather and time of day. On the other hand, shifting of the terrain can be detected with sub-centimeter precision on the basis of multitemporal data without the need for elaborate and costly terrestrial surveying. Satellite photographs with different resolution and wavelengths are employed.
These enable the tracking of processes that would otherwise require enormous times and expenses. Within a few hours satellites deliver high-resolution images of any point on the earth.
Whether for the analysis and visualization of deformations in buildings or for settlement measurements of endangered objects, TRIGIS organizes the corresponding measurement campaigns and delivers the relevant data, in real time as well.
We offer deformation and safety measurements especially for industries with high requirements for accuracy (mining, industrial and ordnance surveys). Here we make use of digital precision leveling instruments, "Invar(code)lattenausrüstung", water level gauges and other special accessories.
Vertical inclinometers are used to determine horizontal surface deformation.
They are most commonly used to keep track of construction pits and construction pit sheeting or monitor slope movements.
To this effect, vertical measuring points are created from inclinometer gauge tubes (drilled) and are measured and evaluated periodically.
Effective ranges: ± 30°, ± 60°, ± 90°
System accuracy: ± 2 mm over 25 m (for ± 30°