High-precision self-Leveling Borehole Tiltmeter for geotechnical applications

Overview

The LILY Series (500 Series) ultra-high precision inclinometers are designed for geophysical monitoring applications such as volcano observation, seismology, hydraulic fracturing, and borehole measurements.
These inclinometers consist of two sensing elements (X, Y) integrated into a stainless steel or titanium sealed housing (51 mm diameter), capable of withstanding pressures up to 350 bar.

In addition to their exceptional accuracy (resolution: 5 nanoradians, measuring range: ±330 µrad), these sensors are distinguished by unmatched repeatability thanks to an automatic leveling mechanism.

The LILY inclinometer is available with RS-232 or RS-485 interface.
Sampling frequency is configurable (from 10 Hz to one reading per day).
Data can be collected continuously or stored on internal memory (2 MB for up to 64,000 readings) for autonomous operation.
Each data record includes GPS position, timestamp (internal clock), and angle values.

Specifications

Installation

LILY inclinometers are installed underground (up to 3,500 m) or submerged (200 to 350 bar).
Electrical connection is made via a 6-pin terminal block or a 6-pin connector mounted on the inclinometer.
Optional connectors and cables are available.
Admissible supply voltage: 7 to 28 VDC.

Applications

LILY inclinometers are particularly suited for monitoring the following applications:

• Volcanoes
• Seismic activity
• Oil and gas wells

• diametre: 51 mm
• longueur: 1068.4 mm

• Special calibration
• Titanium housing

• Cable
• Datalogger