New robust eddy current controller is designed for use with miniature eddy current sensor range


The eddyNCDT 3070 is a new, powerful eddy current measurement system from Micro-Epsilon that is suitable for high precision displacement, distance, position, runout, extension, thermal expansion and oil film thickness measurements in harsh industrial environments. The system is designed to work with the sub-miniature range of sensors that offer measuring ranges of less than 1mm and that measure to sub-micron accuracies at a frequency response up to 20kHz.

The system comprises a compact controller, sensor and sensor cable and can be factory-calibrated for ferrous and non-ferrous materials. The eddyNCDT 3070 is dust-proof and protected against immersion in water for a short period of time (IP67). The sensors are designed for ambient temperatures up to +200°C and ambient pressure up to 700 bar. Active temperature compensation is provided for the sensor and controller, which ensures high temperature stability of the complete measurement system. The compact and robust design, as well as its compatibility with Micro-Epsilon’s range of sub-miniature sensors, means the eddyNCDT 3070 is ideal for installation in confined spaces on machines and in OEM system applications.

The eddyNCDT 3070 is highly adaptable to suit almost any industrial displacement, distance and position measurement application. The DT3071 controller provides enhanced features such as five-point calibration, setting of switching and temperature outputs, as well as storage of multiple characteristic curves. If two or more systems operate next to each other, they do not need to be synchronised – a new frequency separation feature enables these systems to operate in parallel without influencing one another. 

Typical applications include the measurement of shaft movement (lateral and axial runout), lubrication gap (oil film thickness), thermal expansion, and the monitoring of machines in high-speed, automated production environments. Furthermore, due to the controller’s storage feature for multiple characteristic curves, the system is highly suited to test bench, R&D and laboratory applications.

The industrial-grade M12 Ethernet interface enables modern fieldbus connectivity. Due to the controller’s compact, die cast aluminium design and the fieldbus connection, the measurement system is suitable for integration into a variety of production plant, machines and systems. An easy-to-use web interface simplifies set up and configuration.

Glenn Wedgbrow, Business Development Manager at Micro-Epsilon (UK) Ltd comments: “The eddyNCDT 3070 offers some very distinct performance advantages, particularly in terms of its unique combination of resolution, linearity and temperature stability. The system is compact, robust and reliable in harsh industrial conditions. It is equipped with smart signal processing and fieldbus interfaces, which simplify integration into machines and automated production systems. High application versatility is provided with over 100 different compatible sensors.”

For more information on the eddyNCDT 3070, please call the Micro-Epsilon sales department on 0151 355 6070 or email

No.1 Shorelines Building
Shore Road
CH41 1AU
(for Sat Nav use CH41 1AW)
+44 151 355 6070
+44 151 355 6075