GEO Instrumentation
FR EN
Downloads Contact
Expertise

From design
to measurement

We are not resellers. We design, we manufacture, and we follow our sensors in the field — twenty years after installation included. That is what lets us answer an unusual request rather than turn it down for want of a catalogue number.

Engineering office

Every structure sets its own problem: a geometry that will not fit, an unusual measurement range, access that disappears once the sensor is in. Our engineering office designs and develops sensors and systems for the case in front of us.

  • Mechanical design and sizing
  • Adaptation of existing sensors to a site constraint
  • Development of custom solutions
Cutaway view of a vibrating wire sensor

Manufacturing

Manufacturing is kept in house, which is how we hold tolerances and stay in control of lead times.

  • Machining of mechanical parts
  • Assembly of the wire and the coils
  • Sealing and preparation of the connections
Range of extensometers in different lengths

Inspection and calibration

A sensor embedded in a base slab cannot be replaced. Every instrument is checked before it leaves, and comes with its coefficients.

  • Inspection at every manufacturing stage
  • Calibration and individual calibration record
  • Traceability by serial number
Sensor opened up, coils and connections visible

We stay with you throughout the life of the structure

Diagnosis

A reading that drifts, a silent sensor, a doubt about a batch: we look into it and tell you where you stand, including when the answer is that the instrument is still good.

Technical support

Choice of sensor, installation method, reading of the first measurements. Support starts before the order and does not stop at delivery.

Instrument assessment

Inspection and overhaul of instruments in service, old ones included. We know the equipment we built.

On-site work

Installation, commissioning, measurement campaigns. In France and abroad, in galleries and at remote sites.

Training

Your teams learn to install, read and maintain the instrumentation. A structure monitored in house costs less than one monitored by a contractor.

Long-term follow-up

A structure is monitored for decades. We stay available for additions to the installed base, for parts and for replacements.

In the field
GEO Instrumentation device installed in an inspection gallery

In the gallery

Instrument installed in an inspection gallery, two-axis measurement
Sensors fitted to a ground anchor tie rod

On a tie-rod

Sensors fitted to a ground anchor tie rod