Patent ID: 7710287
Filing Date: 2010-05-04
Classification: B23Q,H02J

Abstract:
1. Sensor system for a machine tool with a sensor comprising a. at least one measurement instrument which measures a physical quantity occurring within the machine tool which is related to a machining process performed by the machine tool; b. a first energy supply for supply of said at least one measurement instrument of said sensor, wherein said first energy supply produces electric energy from a surrounding electromagnetic field in a wireless way; c. a second energy supply for supply of said at least one measurement instrument of said sensor, wherein said second energy supply comprises at least one battery; d. a transmitter or receiver for data transmission; and electronics configured such that in the absence of a machining process and when a surrounding electromagnetic field is not present, said electronics switches off said at least one measurement instrument of said sensor system and checks for said data transmission periodically with a first time period t