Patent ID: 9537540
Date: 2017-01-03
CPC Classifications: B23Q,H01F,H02J,H04B

Claim:
1. A method for inductive transmission of electrical power by a rotary transmitter for machine tools from a stator part which is fixed to a machine and has a primary circuit, to a rotor part which is fixed to a tool and has a secondary circuit, comprising the steps of: connecting a test resistor into the secondary circuit; ascertaining a measure for an electrical load in the primary circuit or the secondary circuit as a function of a frequency fp of an alternating circuit in the primary circuit; ascertaining an optimum frequency fo p t of an alternating current in the primary circuit at which an electrical load power is at a maximum; and setting an operating frequency of the alternating current in the primary circuit for transmitting electrical power from the stator part to the rotor part, a value of the operating frequency corresponding to the optimum frequency fo pt .