Laser Tiltmeter

The Worldsensing Laser Tiltmeter is a 3-in-1 device combining laser distance meter, inclinometer and data logger to deliver precise and reliable data monitoring inclinations, movements, and differential settlements of slopes and structures. It uses a laser to measure distance to reference points and a tiltmeter to detect vertical deviations in ground or structures.
With a communication range of up to 10 km when using repeaters, it offers robust connectivity even underground and integrates seamlessly with Worldsensing’s single-net and multi-net configurations.

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Datasheet

Product information:

Key Features

Field-proven, non-intrusive method for convergence monitoring with minimal interference to tunneling activities
±90° range with 3-Axis inclination measurement providing flexible installation options across various site conditions
Easy relocation design enables quick relocation into the final lining after the measured relative displacements are stabilized, ideal for tunneling projects
Near-real time data allows to correlate changes with the excavation phases
Setup Wizard via App simplifying configuration of multiple devices within the same project
New monitoring applications such as vertical settlement at a tunnel crown by measuring the relative distance and the angle

Applications

Monitor convergence across entrance ramps, tunnels, galleries, and any underground excavations
Monitor static deflections of piles, piers, and decks

Technical specifications

Sensor type: 2-in-1 Laser Distance Meter and 3-axis MEMS accelerometer
Power source: 2 x 3.6 V C-size replaceable batteries
Memory: 100 000 readings including time, distance and 3 axis tiltmeter measurements
Data transmission: LoRa radio communications (ISM sub GHz)
Operating temperature: -20º C to 60º C
Weather protection: IP68
System configuration: Locally via Worldsensing App or remotely using CMT Edge on single-net deployments and CMT Cloud on multi-net deployments

Laser distance meter

Sensor: Visible laser class II with 655nm
Laser power: 0.75 to 0.95 mW
Resolution: 0.1 mm
Repeatability (1 sigma): 0.15 mm
Accuracy: ±1 mm at 10 m ±4 mm at 50 m ±16 mm at 150 m

Tiltmeter

Sensor: 3-axis MEMS accelerometer
Range: ±90º
Accuracy (±4º): ±0.005
Repeatability: <0.0003º
Resolution: ±0.0001º
Temperature sensor resolution: 0.1ºC