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Tiltmeters

Tiltmeters can provide real-time warnings of movement, monitor stability of structural elements, and track deformation of walls, ceilings, and floors. Datasheet

Tiltmeter on Pole

Tiltmeters mounted on stakes or poles can be used to trigger alerts when ground movements exceed alarm thresholds.

Tiltmeter on Bracket
Tiltmeters mounted on structures are used to monitor stability. Mounting brackets are available for nearly every environment.
Tilt-Beam
Tiltmeters mounted on arrays of vertical or horizontal beams can monitor differential settlement and deformation.

Tiltmeter Applications

Triggering Alarms

  • Landslides & Rockfalls
  • Embankment Failure

Monitoring Stability

  • Stability of piles & shoring
  • Stability of structures potentially affected by excavations or tunneling
  • Stability of piers during bridge renovations
  • Stability of building facades during interior renovations

Monitoring Deformation

  • Effects of pressure grouting
  • Differential settlement and heave

Types of Tiltmeters

Wired Tiltmeters

Wired Tiltmeters are electrolevel-based devices that are connected to a datalogger. The logger supplies powers and obtains readings. Electrolevel tiltmeters can be supplied with RS-485 interfaces when used in arrays.

Wireless Tiltmeters

Wireless Tiltmeters are MEMS-based, self- powered digital devices that provide high- resolution measurements, wide measurement ranges, built-in logger capabilities, and wireless communications to an internet gateway.

Wireless tiltmeters are preferred for their simplicity of operation, ease of installation, and high performance.

Tiltmeter Variations

Wireless laser-tilt on bridge pier
Laser-Tilts are laser distance meters with embedded tiltmeters. While the main function of the instrument is monitoring displacements with the laser, the tiltmeter can be used to verify that the laser is mounted in a stable location.

Wireless Tiltmeters

Wireless tiltmeter on MSE wall

Wireless tiltmeters monitor stabililty of MSE wall during major repair work.

Wireless tiltmeter on airport jet bridge

Airport jet bridge monitored by wireless tiltmeter during adjacent foundation work.

Wireless tiltmeters on retaining wall

Wireless tiltmeters monitor stability of 40-foot high retaining wall above public parking lot.

Tiltmeter Specifications

Analog Tiltmeter

Electrolevel Tiltmeter (Wired)

Sensor: Uniaxial electrolytic sensor.

Full Range: ± 3°.

Calibrated Range: ± 0.68°.

Resolution: 0.0003°.

Accuracy: ≤1% FS calibrated range.

Temp Rating: -20 to +50 °C.

Power: Supplied by datalogger.

Compatibility: Both analog and RS-485 versions are compatible with Campbell Scientific dataloggers.

Electrolevel Tiltmeters

Traditional Dataloggers

Flatmesh Tiltmeter

FlatMesh Wireless Tiltmeter

Sensor: 3-axis MEMS accelerometer integrated with wireless node. Reports two axes of rotation from horizontal.

Range: ±90° in each axis.

Resolution: 0.0001°.

Repeatability: ±0.0005°.

Environmental: IP68 at 1m for 24 hours, -40°C to +85°C.

Power: Internal batteries, 12 year battery life, 25 min intervals.

Compatibility: FlatMesh wireless network with gateway.

FlatMesh Tiltmeter Node

FlatMesh Wireless Network

Lorawan Tiltmeter

LoRaWan Wireless Tiltmeter

Sensor: 3-axis MEMS accelerometer integrated with wireless logger. Reports two axes of rotation from horizontal.

Range: ±90° in each axis.

Resolution: 0.00001°.

Repeatability: ±0.0003°.

Accuracy: ±0.005° @ 4° of tilt,
± 0.013° at 15° of tilt

Environmental: IP 68 at 2m, 2 hours, -40°C to +85°C.

Data Memory: 140,000 readings

Power: Internal batteries, 3 year battery life, 5 minute intervals.

Compatibility: LoRaWan wireless network with gateway.

LoRaWan Wireless Network