Portable tiltmeter system monitors machine movements

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Portable tiltmeter system monitors machine movementsInertial Aerosystems is introducing a new low-cost portable tiltmeter system for monitoring and measuring the movement of multiple machines or structures. The system consists of the Model 800P portable tiltmeter and the Model 870 readout module, which is a handheld, battery-powered device. Manufactured by Applied Geomechanics of the USA, the 800P has no moving parts, hence it needs no maintenance and virtually no calibration.

When continuous monitoring is not required, the 800P can be used to make scheduled measurements at an unlimited number of points. Applications include monitoring the long-term movement of machinery, structures and foundations, and measuring the mechanical response to applied loads and changes in surface levels.

Angular position is measured with reference to the unchanging vertical gravity vector, so the tiltmeter simply has to be placed on the surface to begin taking measurements.

Operating modes

Users can operate the system primarily in two modes: the first is the Tilt Plate Option, where measurements are taken from tilt plates that have been attached to horizontal or vertical surfaces; the second mode is the Metrology Option, in which the instrument can be levelled manually. This enables the continuous monitoring of any horizontal or vertical surface. Software is available to convert a set of inclination measurements into a contour map of surface relief.

The tiltmeter has an angular range of +/-5 degrees from the null position, with linearity of 1 per cent of full scale and a resolution of 0.36 arc seconds. Operating temperature range is -25 to 70degC. Measuring 143 x 102 x 127mm and weighing 2.7kg, the tiltmeter is constructed from stainless steel with a plastic sensor housing.

Power for the tiltmeter comes from the readout module, which also switches the tiltmeter output to the digital display. A single 9V battery provides up to 24 hours of continuous tilt meter operation.

For further information contact Richard Bowman or Derek Noble on +44 (0)203 258 0023 or visit

Follow the link to request a free brochure.

15 December 2009

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