Jean Lutz sa
The Jean Lutz company specializes in design, manufacture and implementation of sensors and special measurement and control devices for monitoring ground improvement techniques on major works worldwide, including deep foundation and geotechnical instrumentation used in the construction of dams, tunnels, subways and roads. The range of Jean Lutz SA instrumentation meets all the measurement, recording and automation needs of Special Foundations.
Displacement
D90
Displacement sensor with a long stroke.
The D90 sensor consists of an incremental rotary encoder driven by a toothed belt, held taut by a spiral spring.
The D90 exists in two versions: 7 and 15 m.
F82
Linear displacement sensor for depth measurement.
The F82 uses the principle of the pulley that rolls without sliding along a cable stretched between the two ends to be measured.
The measurement signal is delivered by an incremental rotary encoder.
P82
The P82 sensor uses the principle of the wheel that rolls on the surface whose displacement is to be measured.
The axis of the wheel is integral with an incremental rotary encoder.
The assembly is mounted at the end of an oscillating arm of adjustable length. Its axis is mounted on a rubber tension block that can be prestressed to produce a suitable bearing force.
C82
The sensor C82 is an incremental rotary displacement sensor; it is usually mounted at the end of a pulley shaft.
It is a robust, waterproof sensor made of stainless materials (bronze, brass, stainless steel).
When mounting, it is essential to provide an elastic coupling between the power take-off and the C82 axis