Micro-Epsilon developed a new manufacturing technology for eddy current sensors. Using “Embedded Coil Technology” (ECT), the sensor is housed in an inorganic carrier material, which provides temperature and shape stability. The electronics are either integrated in the sensor or are housed separately. The significant benefits of ECT technology are its high operating temperatures of up to 350°C, extreme temperature stability, high mechanical load capacity and the fact that it is suitable for use in strong electromagnetic fields. Due to a hermetically sealed enclosure, the sensors can also be used in ultra high vacuums.