Importance

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Abstract

A vessel transport system in a liquid handler system includes vessel movers that transport a sample vessel using a magnetic base. A track provides a selective magnetic field to propel the magnetic base of each vessel mover along the track using a plurality of multilayer printed circuit boards (PCB) arranged along a transport path. Each PCB has a plurality of multi-layer conductive coils within layers of the PCB and each coil has a plurality of single-layer spirals electrically coupled with one another to form a multilayer coil. A processor is configured to control selective application of currents to the plurality of multi-layer coils to create the selective magnetic field. At least a subset of the multi-layer conductive coils are stacked relative to one another below a surface of the track, such that the selective application of currents selects one of a plurality of branching paths along the track.

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First Claim