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eddyNCDT // Inductive sensors based on eddy currents
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Measuring principle & fields of application Measuring principle Among inductive displacement sensors, the eddy current principle occupies a unique position. Measuring via eddy current is based on the extraction of energy from an oscillating circuit. This energy is needed for the induction of eddy currents in electrically-conductive materials. Here, a coil is supplied with an alternating current, causing a magnetic field to form around the coil. If an electrically conducting object is placed in this magnetic field, eddy currents are induced which form a field according to Faraday’s induction...

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Overview Eddy current sensor with integrated controller eddyNCDT 3001 Measuring ranges 2 - 8 mm Resolution ≥ 3 µm Frequency response 5 kHz Compact eddy current measuring system eddyNCDT 3005 Measuring ranges 1 - 6 mm Resolution ≥ 0.5 µm requency response 5 kHz F High-performance inductive measuring system eddyNCDT 3060 Measuring ranges 1 - 4 mm Resolution ≥ 0.02 μm requency response up to 20 kHz F High precision eddy current displacement measurement eddyNCDT 3300 Measuring ranges 0.4 - 80 mm Resolution ≥ 0.02 μm requency response up to 100 kHz F Turbocharger speed measurement turboSPEED...

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Resistant to media in the measuring gap 1Protection class IP67 1Pressure-resistant models up to 2000 bar Robust sensors with maximum precision eddyNCDT eddy current sensors from MicroEpsilon are often used in applications requiring maximum precision in harsh ambient conditions. Immunity to dirt, pressure and extreme temperature are their distinctive features. Advantages over conventional inductive sensors ■ High frequency response for dynamic measurements ■ High resolution in the submicron range ■ High linearity and temperature stability ■ Measurement on ferromagnetic and non-ferromagnetic...

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Standard installation situation Each eddyNCDT sensor is factory-calibrated under standardized installation conditions. These installation conditions involve mounting, positioning of the nut and surrounding materials. Deviations installation situations may affect the linearity and accuracy. Field linearization or special tuning in the factory may counteract this effect. Standard target materials eddyNCDT sensors are factory-calibrated for the following materials: Ferromagnetic target: Steel (St37) DIN1.0037 Non-ferromagnetic target: Aluminum AlCuMgPb3.1645 Customer-specific adjustment for...

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Robust M12 miniature eddy current sensor The two eddyNCDT 3001 U2 and U4 models are powerful eddy current sensors whose compact dimensions have to date only been reserved for inductive sensors and proximity sensors. These compact sensors come with integrated electronics including temperature compensation while offering an excellent price/performance ratio, as well as easy operation. Therefore, the sensors are ideally suited to OEM integration and machine building applications. The temperature-compensated design provides high stability even in fluctuating ambient temperatures. The sensors...

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Robust miniature sensors in M18 housing The U6 and U8 models of the eddyNCDT 3001 series are powerful eddy current sensors with integrated controller in an M18 design. Calibrated for ferromagnetic or nonferromagnetic materials, these compact sensors offer measuring ranges of 6 mm or 8 mm. As these sensors are temperature-compensated, they provide high signal stability even in fluctuating ambient temperatures. Due to their robust design, these sensors are used for measurement tasks in harsh, industrial environments.

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5-pin housing connector M12x1 View on pin side Measurement direction Connector side

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Compact eddy current measuring system eddyNCDT 3005 St 37 ^A! IP67 Compact and robust design High measurement accuracy For ferromagnetic and non-ferro-magnetic materials Robust eddy current measuring system The eddyNCDT 3005 is a powerful eddy current measuring system for fast, high precision displacement measurements. The system comprises a compact controller, a sensor and an integrated cable and is factory-calibrated for ferromagnetic or nonferromagnetic materials. As sensor and controller are temperature-compensated, high measurement accuracies can be achieved even in fluctuating...

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Model Measuring range Start of measuring range Temperature stability Temperature compensation Sensor type Min. target size (flat) Supply voltage Analog output with LF & HF variants Sensor: integrated cable, length 1 m, min. bending radius 18 mm Supply/signal: 5-pole M12 connector (cable see accessories) Connection Storage Temperature range Sensor: 0 … +125 °C (optional 0 … +180 °C), Controller: 0 … +70 °C Pressure resistance 10 bar (sensor, cable and controller) 15 g / 6 ms in 3 axes, 2 directions and 1000 shocks each 5 g / 10 ... 500 Hz in 3 axes, 2 directions and 10 cycles each Protection...

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When connecting a PC via the Ethernet interface, a modern web interface can be accessed without any further installation and enables the parameterization of sensor and controller. The DT3061 controller provides enhanced features such as 5-point calibration, setting of switching and temperature outputs, as well as storage of multiple characteristic curves.

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Measurement direction 1) Valid for operation with DT306x controller, referred to nominal measuring range 2) Relates to mid of measuring range 3) RMS value of the signal noise, static (20 Hz) 4) Only with DT3061 controller and 5-point linearization 5 Length tolerance cable: nominal value +30 %

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Measurement direction 1) Valid for operation with DT306x controller, referred to nominal measuring range 2) Relates to mid of measuring range 3) RMS value of the signal noise, static (20 Hz) 4) Only with DT3061 controller and 5-point linearization 5 Length tolerance cable: nominal value +30 %

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Connection cable for DT3060 portfolio sensorsSensors with integrated cable: cable type ES-xx-C-CAx Coaxial cable with Viton sheathing Cable diameter: 0 3.6 mm Minimum bending radius: static approx. 18 mm / dynamic approx. 36 mm Temperature resistance: up to 200 °C (3000 hrs.) Available length: 1 m / 3 m / 6 m (9 m on request) Coaxial cable with Viton sheathing Cable diameter: 0 3.6 mm Minimum bending radius: static approx. 18 mm / dynamic approx. 36 mm Temperature resistance: up to 200 °C (3000 hrs.) Available length: 1 m / 3 m / 6 m (9 m on request) Coaxial cable with Viton sheathing Cable...

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