DGSI. Durham Geo Slope Indicator

EL Tilt Sensor

Applications

EL Tilt Sensor

EL tilt sensors are narrow-angle, high-resolution sensors used to monitor changes in the inclination of a structure. They can provide an accurate history of movement and early warning of potential structural damage. Applications for tilt sensors include:

  • Monitoring the rotation of retaining walls, piers, and piles.
  • Monitoring the behavior of structures under load.
  • Documenting effects of nearby excavations and providing early warning of potential damage.

Operation

An EL tilt sensor consists of an electrolytic tilt sensor housed in a compact, weatherproof enclosure. The bridge circuit outputs a voltage proportional to the tilt of the sensor.

The EL Tilt Sensor has a very narrow range, so it is necessary to "null" the sensor at installation time. This provides the maximum measurement range and also takes advantage of the sensor's best characteristics. The EL Nulling Device or the MEMS/EL Data Recorder are convenient tools for the nulling operation.

When the tiltmeter is read manually, changes in inclination are found by comparing the current reading to the initial reading. EL Tilt Sensors may also be connected to a data logger, which can obtain frequent readings, perform calculations, and trigger alarms if tilt or the rate of change exceeds preset limits.

Advantages

High-Resolution: The EL Tilt Sensor measures tilt over a range of +/- 40 arc minutes. It can can detect changes as small as one arc second (0.00028 degree).

Easy-Installation: Versatile brackets allow for quick and easy placement of the sensors. The bracket allows for the tilt sensor to be mounted to the floor, wall, or ceiling.

Robust and Reliable: The sensor has no moving parts and is protected by a weatherproof enclosure.

Ready for Data Logging: The EL tilt sensor is compatible with most data loggers but can also be read manually.

For more information

Please download the datasheet and manual for the EL Tilt Sensor. These documents can be viewed and printed with Adobe Acrobat Reader.