Wind Turbine Monitoring for Foundations and Tower Bases

The 6D sensor measures tilt and settlement at the base of the mast in a single installation, with repeatability of ±50 µm and ±0.1°, wirelessly and without requiring a power connection to the structure.

Detect tower tilting and foundation settlement early

These companies rely on our sensor technology

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You can't see the changes that occur in the foundation over the course of its service life

Wind turbines transfer varying loads from wind and rotor operation through the tower and tower base into the foundation. These loads act on the subsoil throughout the entire operational life of the turbine. Settlement of the foundation and tilting of the tower base develop slowly over months and years.
A routine inspection assesses the condition as of a specific date. Any foundation movement that occurs between two inspections remains undetected until the next inspection. Cracks at the junction between the foundation and the tower often do not become apparent until the movement is already well advanced.

Our sensors continuously monitor the foundation and mast base

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Install the sensor at the base of the mast or at the junction between the foundation and the tower

Install the sensor at the base of the mast or at the junction between the foundation and the tower

The reference object and sensor are each secured with two screws to the mast base, the foundation, or the junction between the foundation and the tower. No special tools are required, and no structural modifications are needed. Activation is triggered by placing a magnet against the device or connecting the battery cable. The system remains operational during installation.

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6D Instructions

Automatically transfer measured values

Once the sensor is active, it wirelessly transmits data on tilting and settlement to our data hub. Data is transmitted via LTE-M and Wi-Fi. The movement history can be viewed at any time as a timeline, without anyone needing to be on-site.

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Immediate notification if the threshold is exceeded

Immediate notification if the threshold is exceeded

You define the critical values for each measurement point in advance. If these values are exceeded, our system sends an email notification to the designated recipients. The complete history of changes is also available as documentation for the next equipment inspection.

Measurement Points in Wind Turbine Monitoring
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Recommended Sensors for Wind Turbine Monitoring

There is a sensor to suit every measurement point and motion pattern.

6D sensor

The solution for monitoring at the base of the mast. Measures tilt and settlement at the same measurement point in six dimensions with a single installation. The tilt of the tower is the key measurement.

Features:
  • Measurement in six dimensions (X, Y, Z, and rotation around three axes)
  • Repeatability: ±50 µm (translation), ±0.1° (rotation)
  • Built-in temperature sensor (±0.5 °C)
  • 10-year battery life with hourly measurements
  • Wireless transmission via LTE-M and Wi-Fi
  • Patent EP3792587B1

3D sensor

For measurement points at the foundation-to-tower transition where the crack width and displacement (excluding rotational components) are to be measured.

Features:
  • Measurement in three spatial axes (X, Y, Z)
  • Repeatability ±50 µm
  • Built-in temperature sensor
  • 10-year battery life with daily measurements
  • Wireless transmission via LTE-M and Wi-Fi
  • Compact design with no external cables
3D sensor
What's changing for you

Specific differences compared to spot inspections and conventional sensor technology.

Six dimensions in a single measurement
Tilt and settlement in a single measurement

Tilt and settlement at the same measurement point within a single sensor. Other sensor systems require multiple devices or multiple setups to capture the same motion profile at the base of the mast. Patent EP3792587B1.

SuessCo Datahub Dashboard
All measurement data in a single dashboard. CSV export for structural engineers and reports, API integration for third-party sensors, and multi-tenant support for complex projects.
Datahub in Detail
Every hour over a period of ten years
Complete data on operating time

A system remains in place for years. With a battery life of ten years, our sensors continuously monitor slow foundation movement without requiring battery replacement during standard inspection intervals.

Early warning
Early warning when thresholds are exceeded

If a threshold is exceeded, our system automatically sends an email notification. Progressive foundation movement is detected early, before it compromises the safe operation of the system.

Wirelessly connected
Wireless and self-contained at the base of the mast

The sensors operate without wiring and without an external power connection to the tower. Data is transmitted via LTE-M and Wi-Fi, and the sensors are mounted with two screws. Even on the hard-to-reach base of a wind turbine, no on-site visit is required to retrieve the data.

Real-world projects

Selected wind power monitoring projects using our sensors.

May1

Brentenberg Tunnel

Real-time structural monitoring following a tunnel fire to enable rapid reopening during ongoing restoration work.

Building:
Tunnel
Location:
Austria
Sensors:
3D sensor
Read the case study
Brentenberg Tunnel

Rastatt Tunnel

Wireless 3D measurement of concrete segments in tunnel construction.

Building:
Tunnel
Location:
Germany
Sensors:
3D Sensor XT
Read the case study
Rastatt Tunnel

Stuttgart 21

Continuous monitoring of structural movements in the historic reception building during the critical construction phase

Building:
Historic train station building
Location:
Stuttgart, Germany
Sensors:
6D sensor, GNSS sensor
Read the case study
Stuttgart 21

Residential building

High-precision building monitoring of settlement and crack development to assess damage caused by subway construction work.

Building:
Historic building
Location:
Central Europe
Sensors:
3D sensor, 6D sensor, GNSS sensor
Read the case study
Residential building

Danube Bridge

Monitoring of bearing and abutment movements and structure temperature during operation.

Building:
steel bridge
Location:
Lower Austria
Sensors:
6D sensor
Read the case study
Danube Bridge
May1

What our customers say

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FAQ
Frequently Asked Questions About Wind Turbine Monitoring

For the mast base, the 6D sensor is the primary solution because it measures both tilt and settlement simultaneously. Any incipient tilt of the tower is recorded with a repeatability of ±0.1°. If only the crack width and displacement—without any rotational component—need to be measured at the junction between the foundation and the tower, the 3D sensor is sufficient.

No. Our sensors measure displacement, tilt, and settlement—that is, static and slow movements at the foundation and mast base. They do not measure vibrations caused by rotor operation. The focus is on tracking settlement and tilt over the course of the turbine’s operational life.

Yes. Installation at the base of the mast or on the foundation does not require the system to be shut down. The sensor is secured with two screws and is ready for operation once the magnet is attached or the battery cable is connected.

When used for hourly measurements, the 6D sensor has a battery life of ten years. The 3D sensor has a battery life of ten years when used for daily measurements. This allows for the tracking of slow foundation movement over long periods of time without needing to replace the battery.

All measurement values are available in the Datahub as a CSV export. You can use the history of settlement and tilt as documentation for the next inspection. Any anomalies between inspections become apparent over time.

You define the critical thresholds for each measurement point in advance. If these thresholds are exceeded, our system automatically sends an email notification to the designated recipients. This allows you to initiate an unscheduled inspection before the foundation movement deteriorates to a critical level.

Discuss monitoring for your wind turbine

During the consultation, we will show you which sensor is compatible with the mast base and the foundation-to-tower junction, and how to install the sensors during operation.