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E31.2 E32.2

MEMS Tilt Beam

GeosenseTiltBeamGeosense® MEMS Tilt Beams are used to measure tilt or differential settlement on structures and infrastructure. The can be mounted horizontally or vertically and are best used as chain of beams that can pick up differential displacement over the chain.

A highly accurate MEMS sensor and operation circuitry is sealed in a weathertight enclosure and mounted on a rigid GRP beam. The GRP beam has a very low coefficient of thermal expansion, reducing thermal effects on measurement. 

The design of the beam and end fixings means the beam can easily be cut to any length on site to accommodate any unexpected changes or constraints.

Each unit is individually calibrated to provide the ultimate in system accuracy and repeatability. It can be used in conjunction with a hand-held readouts or automatic data acquisition systems. Units are typically supplied with a RS485/Digital BUS output. 

Applications

  • Monitoring tilt in retaining walls, diaphragm walls, concrete dams, party walls, structures and bridge piers
  • Differential displacement within tunnels
  • Monitoring of displacement of structures during compensation grouting

Features

  • Uniaxial or Biaxial configurations
  • Low sensativity to thermal expansions
  • MEMS sensors are resistant to long term drift
  • Beamlength can be changed on site. 
  • Integral temperature sensors 

Specifications

Models

 IPTB-M

 5-V-1-485 

 IPTB-M

 5-H-1-485 

 IPTB-M

 10-V-1-485 

 IPTB-M

 10-H-1-485 

 IPTB-M

 15-V-1-485 

 IPTB-M

 15-H-1-485 

Range  ± 5°  ± 5°  ± 10°  ± 10°  ± 15°  ± 15°
Axis  Uniaxial   Uniaxial   Uniaxial   Uniaxial   Uniaxial   Uniaxial 
Orientation  Vertical 

 Horizontal 

 Vertical   Horizontal   Vertical   Horizontal 
Accuracy

 ±0.0013°

 ±4.68 arc sec 

 ±0.02 mm/m

 ±0.013% FS

 ±0.0013°

 ±4.68 arc sec 

 ±0.02 mm/m

 ±0.013% FS

 ±0.002°

 ±7.2 arc sec

 ±0.035 mm/m 

 ±0.01% FS 

 ±0.002°

 ±7.2 arc sec

 ±0.035 mm/m 

 ±0.01% FS  

 ±0.004°

 ±13.5 arc sec

 ±0.065 mm/m 

 ±0.0125% FS 

 ±0.004°

 ±13.5 arc sec

 ±0.065 mm/m 

 ±0.0125% FS  

Resolution

 0.0005°

 2 arc sec

 0.01 mm/m

 0.005% FS

 0.0005°

 2 arc sec

 0.01 mm/m

 0.005% FS

 0.0005°

 2 arc sec

 0.01 mm/m

 0.005% FS

 0.0005°

 2 arc sec

 0.01 mm/m

 0.005% FS

 0.0005°

 2 arc sec

 0.01 mm/m

 0.005% FS

 0.0005°

 2 arc sec

 0.01 mm/m

 0.005% FS

Repeatability

 ±0.002°

 ±7.2 arc sec

 ±0.34 mm/m

 ±0.02% FS

 ±0.002°

 ±7.2 arc sec

 ±0.34 mm/m

 ±0.02% FS

 ±0.002°

 ±7.2 arc sec

 ±0.34 mm/m

 ±0.02% FS

 ±0.002°

 ±7.2 arc sec

 ±0.34 mm/m

 ±0.02% FS

 ±0.002°

 ±7.2 arc sec

 ±0.34 mm/m

 ±0.02% FS

 ±0.002°

 ±7.2 arc sec

 ±0.34 mm/m

 ±0.02% FS

Shared specifications

 Operating Temperature   -40 to +85°C
 Thermal Stability  ±0.005% FS/°C 
 Supply Input  8-15 V DC
 Output Signal  RS-485/digital Bus 
 Output Units  Sine of angle
 Sensor Type  MEMS
 Beam Dimensions  50 x 50 x 6 mm L Section 
 Beam Length*  0.5, 1 or 2 m
 Material  GRP / Aluminium
 Sensor Enclosure  Aluminium
 Enclosure rating  IP 67

*Beams can be manufactured to other lengths if required, beam can be cut to length on site. 

VIC:

Melbourne

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t (03) 9938 3830

m 0428 315 502

NSW:

Sydney

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t (02) 9986 1857

m 0418 381 709

QLD:

Brisbane

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t (07) 3040 6166

m 0419 477 715

WA:

Perth (Head Office)

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t (08) 9322 4020

m 0408 034 668

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