CGEO-IPIA IPIB IPID In-Place Inclinometer

Description

CGEO-IPIA/IPIB/IPID series (MEMS) In-Place Inclinometer, when connected through stainless steel tube and wheel assembly, are installed in standard inclinometer tubes with guide grooves, moving synchronously with the tubes. They are used to monitor the tilt, horizontal displacement, or settlement deformation of structures such as slopes, landslide bodies, dams, highways, and impermeable walls. These inclinometers can automatically perform continuous monitoring when connected with automated data collection equipment. By installing multiple sensors, deflection deformation curves along the axial direction of the inclinometer tube can be obtained.

The CGEO-IPIA model can be installed in vertical inclinometer casing to measure horizontal displacement at different depths of the structure, and offers the option of biaxial sensors. The CGEO-IPIB model can be installed in horizontally distributed inclinometer tubes to measure vertical displacement at different depths, or to monitor uneven settlement profiles of dams, embankments, roadbeds, etc. It can also be installed on sloped surfaces, such as the concrete panels of rockfill dams, to monitor panel deflection, and can be customized for any slope installation direction.

Uniaxial sensors can measure tilt changes in one direction, while biaxial sensors can simultaneously measure tilt changes in two directions. The sensors have built-in temperature sensors to measure the environmental temperature at the monitoring point. The measurement range of the CGEO-IPIA and IPIB In-Place Inclinometers can be customized.

The CGEO-IPID In-Place Inclinometer uses an RS485 interface and provides digital output for tilt and temperature measurements using the standard Modbus protocol.

Applications

Slopes and landslides

Shear and slip zones

Diaphragm or sheet pile walls

Bending in piles

Dams

Ground movement

Retaining walls

Concrete slabs and tank bases

Operation

The tilt sensors are installed in inclinometer casing within a borehole, a sprung wheel assembly on the IPI engages into the keyways of the inclinometer casing to ensure alignment. Multiple IPIs are installed at varying depths and secured using gauge rods

connected to the next and previous IPI.

The final gauge rod is secured at the top of the borehole using a top support assembly. Each IPI is connected to a datalogger which powers the sensors, initiates readings and retrieves the data.

Each tilt sensor also contains a thermistor to permit temperatures to be recorded.The smart IPI sensors are connected to each other by means of a four-wire bus cable. Each sensor has a length of this cable exiting from the top and bottom of the sensor housing. The same cable (customer specified length) connects the uppermost sensor to the chosen readout (PC or datalogger, system, etc.).

Features

Accurate and precise measurements using MEMS sensors

Robust design and reliable

Fit for manual or remote reading

Key Features

Available in uniaxial and biaxial versions

In-built temperature compensation

Specifications