The microcoil inductive sensor works like linear variable differential transformer (LVDT) or a resolver and has the same advantages: high resolution, high accuracy and high immunity against magnetic fields and electromagnetic perturbations.
The target consists of a PCB with copper patterns. The eddy currents created in the copper patterns modulate the coupling between the primary and secondary windings of the microcoil sensor. These targets are simple and low-cost single-sided PCB with one copper layer covered by a solder mask, and thus resistant against liquids and mechanical impact. Rotational targets with different diameters and linear targets up to 300mm are available from stock.
Factory programming allows an optimal sensor-configuration for varying applications: high-speed (up to 50 m/s), high-resolution (below 1um) or wide airgap (up to 1 mm). Different output formats are available: A quad B, Analog Ratiometric or PWM.