Tiltmeters and Inclinometers

MEMS In place Inclinometer (IPI)

///MEMS In place Inclinometer (IPI)


The In Place Inclinometers (IPI) we offer are composed of an integrated system, where power supply electronics, transmission signal electronics and MEMS (Micro Electro-Mechanical System) sensors, are housed together in one probe casing. The instrument is fully waterproof and is suitable for use in conventional inclinometer columns. It is normally used with an inclinometer tube in drilled holes for the monitoring of horizontal movement in soil, landslides and deformations of structure.

Generally this type of sensor is used to form chains inserted into the same tube, thereby providing automatic measurement of the deformation of an inclinometer column (as an alternative to systems with manual probe inclinometer).

In place Inclinometers Applications:

The IPI system is used to monitor movements in soil or movement of structures. Usually the In-Place Inclinometer (IPI) is used to measure lateral displacement within a borehole. Commonly, the IPI is used in a system where multiple IPIs are installed at varying depths to monitor the response of concrete or CCM dams to filling, the movements of potential landslides and hydraulic fractures, and the response of large structures and buildings to various influences.

In place inclinometer tubes can be used for many applications:

  • Landslides
  • Identification of shear zones
  • Diaphragms
  • Piles
  • Dams
  • Tunnels
  • Bridges
  • Road and railway embankments
  • Various

Features and Benefits:

  • Accuracy of measurements
  • Precision of manufacture
  • Versatility
  • Low cost
  • Built-in electronics
  • Removable instrument
  • The IPI system has also been designed for monitoring in horizontal applications:

Sono disponibili sistemi per applicazioni in colonne verticali e per  colonne  orizzontali (o comunque inclinate).

Technical Specifications:

Probe dimension diameter 30 mm, length 1400 mm
Wheel base 1000 mm
Made of probe AISI 316
Made of wheel AISI 316
Sensor type  biaxial MEMS
Range from +/- 5° to +/- 20°
Resolution 0.005°
Accuracy < +/-0.1% F.S
Power supply 12-15 Vdc
Analog output version 4-20 mA (3 wires)
Digital output version RS485 MODBUS RTU protocol
2400, 4800, 9600, 19200, 38400, 57600 Boud Rate
(connection up to n° 128 sensors with one cable type 2x2x0,5 mm)
Working temperature -10…+40 °C
Long term stability < 0.05°

Technical Assistance

If you have any requests or questions about our instruments or if you have special needs that require different solutions from the standard, please contact us. Our team will provide all the necessary information and will be very happy to work with you to study, develop and customize instruments and solutions suitable for your specific needs.

All information in our datasheet is subject to change without prior notice.

Please check the datasheet/details carefully and contact Pizzi Instruments for further information