Type 3 sensors measure the linear position of targets whose symmetry axis point along the measuring direction (axially). The target can rotate freely about this axis without influence on the measurement. This is particularly useful for Float Level Sensing, since it allows for a cylindrical float which can run freely in a cylindrical chamber. Axial sensors are generally designed to operate at large gaps, so that they can be placed outside the float chamber.
Please contact CambridgeIC for the status of development kits and samples.