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ENGINEERING
REVIEW TECH INNOVATION

High precision gap

monitoring in plant and

machinery

With the eddyNCDT 3060, Micro-Epsilon has developed
a powerful displacement measuring system based on the
eddy current principle, which combines precision, speed and
temperature stability in a unique way. These characteristics are
complemented with maximum ease of use and an excellent price/
performance ratio. The system shows its strengths primarily with
gap measurements in harsh ambient conditions.
he eddyNCDT 3060 system is enable easy integration into machines and is performed via a modern, user-friendly
designed for displacement and systems. web interface that is accessed via an
Tdistance measurements. Due to Ethernet interface.
its robust design and high measurement Individual adaption possibilities
accuracy, the system is used to monitor Another particularity feature of note is Gap analysis in axial piston pumps
the lubricating gap and thermal the distance-independent multi-point The eddyNCDT 3060 eddy current
expansion, as well as to determine shaft calibration which enables the customer to measuring system also shows its
movement and radial run out of machine carry out field linearization in addition to strengths when analyzing the gaps
parts and drive components. Factory- the factory-calibration. The measurement in axial piston pumps, where sensors
calibrated for either ferromagnetic or non- accuracy can even be increased using the monitor the gasket gaps in very limited
ferromagnetic materials, the inductive DT3061 controller model for a 5-point space while being exposed to high
displacement measuring system consists linearization. Furthermore, the DT3061 rotational speeds and harsh ambient
of a compact controller, a sensor and a offers switching outputs and temperature conditions. Axial piston pumps convert
cable. With more than 400 compatible outputs and allows the storage of multiple mechanically generated kinetic energy
sensor models, high speed and smart characteristic curves. Parameter set up into hydraulic energy. This means they
signal processing, the eddyNCDT 3060 are often used in slow-moving machines
product series from Micro-Epsilon defines that simultaneously perform, in addition to
a new performance class in inductive their motion, hydraulic movements such
displacement measurement. as lifting, turning or gripping, for example
The powerful eddyNCDT 3060 eddy via blades or crane booms. Inside the
current displacement measuring system pump, a cylinder with a piston rotates
is ideal for fast, non-contact displacement between two fixed plates in order to build
measurements onto metallic targets. up hydraulic pressure. These plates can
As sensor and controller are actively be used to control the desired pressure by
temperature-compensated, very high regulating the flow opening.
measurement accuracies down to the To ensure that the connected
micrometer range can be achieved even The eddyNCDT 3060 system is mechanical parts can rotate optimally and
in fluctuating temperatures. The sensors designed for displacement and distance for as long as possible, friction should be
measurements. With more than
are designed for ambient temperatures up 400 compatible sensor models, high minimal. Therefore, narrow gaps between
to a maximum of +200°C and an ambient speed and smart signal processing, the components ensure the best sliding
pressure up to 20bar. The measurements the eddyNCDT 3060 product series properties. Most of these gaps are under
are performed at a frequency response from Micro-Epsilon defines a new 20 microns wide, sometimes even less
up to 20kHz. The compact controller performance class in inductive than 10 microns. In addition to reducing
design as well as the fieldbus connection displacement measurement. friction, these so-called sealing gaps also

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