Eddy current sensor TX

The eddy current sensor series IC with integrated electronics guarantees highly accurate measurements thanks to linearized characteristic curve. Accuracy has been improved by up to a factor of 20 compared to previous models. The teach-in function allows the measuring range of the eddy current sensor to be optimally adapted to the respective application. Installation tolerances or material properties of the measured object can be compensated directly. Setting individual measuring range limits offers the user the greatest possible flexibility and simplifies sensor integration. As the complete analysis electronics are built into the sensor, installation and mounting are also extremely uncomplicated.

The CM-Sensors are specially designed for demanding applications: They withstand high pressures up to 100 bars (and more) at temperatures up to 190 °C. At conventional sensors with a similar size the probe head must be kept free from surrounding conductive objects, in order to avoid pre-attenuation of the measuring system. In contrast, the socket for the CM-sensor does not require additional notches or holes.This feature arises from the utilization of zirconium oxide as housing material and ferritic components with a focusing effect. The CM-sensor is typically applied to monitor the orbit of a turbocharger’s shaft.Its ball bearings have a squeeze film damper to reduce the rotor vibration. In order to optimize the entire system the CM-sensors detect the exact position of the turbine- and compressor wheel under real operating conditions.

With an extended measuring range up to 45mm, the new eddy current sensor series completes the product portfolio of eddylab GmbH and at the same time combines all advantages of a non-contact eddy current measuring principle: With wear-free distance and displacement measurement, eddy current sensors are characterized by highest precision and dynamics. The new T14/T20/T40 series can withstand extreme temperatures in a range of -40...+150 °C without any problems and is insensitive to external influences such as dirt and dust. The new sensors with measuring ranges between 14 mm and 45 mm are also extremely compact and robust. This makes them ideal for use in difficult industrial environments or vibration measurements with larger amplitudes. Together with the TX electronics from eddylab GmbH and the eddy current software eddyMOTION, measurement data can be analyzed, visualized, and documented.

eddyMOTION is a Windows-based analysis and configuration tool for eddy current probes. In combination with the TX electronics from eddylab GmbH, the software tool combines several performance features: The functional areas oscilloscope, FFT analysis, data logger and waterfall diagram, enables the visualization and documentation of mechanical movements. eddyMOTION also suites the on-site linearization of eddy current sensors in a traceable manner, without external assistance. In addition to the TX electronics and an eddylab eddy current sensor, a reference probe is required for this purpose: Together with the eddy current sensor, this probe measures the distance to the same material, with the reference probe serving to check the sensor.