| | | The eddy currents then arising in the target form a magnetic field which influences the measurement coil impedance. This changes linearly with the target position. The magnetic field of the compensation coil has in contrast no coupling with the target and the impedance of the compensation coil is largely independent of the target position. | | The electronic circuit generates a signal from the ratio of the impedance of the measurement coil and the compensation coil and converts the sleeve position into a linear electrical output signal of 4-20 mA. In achieving this, the temperature effects and the temperature gradient are essentially eliminated. With measurement ranges from 100 mm to 630 mm, the product range in the EDS series is very versatile. For OEM systems the mechanical interfaces can be adapted to the installation situation. | | |