New inductive displacement sensors from Micro-Epsilon provide micrometre precision and application flexibility

By Setform

For precise, fast displacement measurements on metal targets in harsh environments

The eddyNCDT 3005 is a high-performance inductive (eddy-current) sensor system for precise, fast displacement measurements on metal targets in harsh environments

The sensor system is suitable for industrial measurement tasks and automation solutions due to its compact controller housing, high-temperature stability, and robust design.

The robust design of the eddyNCDT 3005 sensors makes them suited for integration into machines and systems. The sensor head, cable, and controller are sealed against pressure and liquid ingress. The system can operate in environments with pressure, dirt, oil, and high temperatures.

It provides a unique combination of micrometre precision, robustness, and flexibility by adapting the system to the customer’s application. Active temperature compensation ensures accurate measurement results, even in environments with large temperature fluctuations.

The sensors have been developed for ambient temperatures up to 125°C as standard, and can be custom-engineered for temperatures from -20°C to 180°C. The measuring system is suitable for ambient pressures up to 10 bar. The system is factory-calibrated for ferromagnetic or non-ferromagnetic materials, depending on customer requirements, with special calibration options for specific target or mounting geometries.

The design of the controller, with a diameter of 12mm, enabled integration into confined and hard-to-reach installation spaces. The measurement signal is delivered via analogue voltage or through RS485, unlocking networking possibilities and compatibility with modern industrial Ethernet interfaces via a gateway module.

Glenn Wedgbrow, business development manager at Micro-Epsilon UK, said, “The eddyNCDT 3005 sets new standards in terms of eddy current displacement measurement. The complete conditioning electronics are miniaturised and mounted into a compact cylindrical housing, integrated into the sensor cable, one metre from the sensor head. Having the electronics remote from the sensor enables more compact sensor head dimensions and higher operating temperatures, compared to sensors with integrated electronics.

“With a very competitive pricing structure, the system can be supplied from stock. Equally, for higher volume applications, the system can be modified to suit individual OEM requirements. The sensors are ideal for companies that need to measure vibration, shaft runout, concentricity, gap, tip timing, eccentricity, oil film thickness and position, to micrometre level accuracies.”

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