EL Tiltmeters
Introduction  |  EL Tiltmeter |  Portable Tiltmeter |  EL Beam Sensor | EL Track Monitor

Applications

EL tiltmeters are used to monitor changes in the inclination of a structure. They provide an accurate history of movement and early warning of potential structural damage. Applications for tiltmeters 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

The EL tiltmeter consists of an electrolytic tilt sensor housed in a compact, waterproof enclosure. The tilt sensor is a precision bubble-level that is sensed electrically as a resistance bridge. The bridge circuit outputs a voltage proportional to the tilt of the sensor.

When the tiltmeter is read manually, changes in inclination are found by comparing the current reading to the initial reading. EL tiltmeters 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.

Narrow-Angle and Wide-Angle Models

The narrow-angle EL tiltmeter (shown with cover removed) measures tilt over a range of +/- 40 arc minutes. It can detect changes as small as one arc second (0.00028 degree). It is supplied with a two-point mounting bracket for use with groutable anchors.