Non-contact power transmission between inductive stationary and moving - has transmission provided by transformer mounted on unit

摘要

An instrumentation or control unit (11) is free to move on guides (12) along a rail (12) and is supplied with electrical power from a stationary unit (3). The supply is in the form of an electrical transformer (3) that has a pair of supply wires (4,5) that are arranged in parallel to the guide rails (9). Mounted on the housing of the instrumentation or control unit is a transformer with the secondary winding connected to the unit. The primary winding surrounds the supply wires and provides a non contact inductive transmission path. ADVANTAGE - Does not involve sliding contact power transfer.