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AssigneePrecitec GmbH & Co. KG
InventorsGeorg Sporl, Stephan Biermann
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Temperature compensation in the context of capacitive distance measurement with the aid of an LC oscillator The invention relates to a method for temperature compensation of an LC oscillator (8) having a machining head (4) and serving for the capacitive measurement of a distance between the machining head (4) and a workpiece (7), in which an output signal (S) of the LC oscillator (8) is transmitted to an evaluation unit (2) arranged separately from the machining head (4). The temperature (T) of the LC oscillator (8) is measured with the aid of the temperature sensor (29) and supplied to the evaluation unit (2). In the evaluation unit (2), temperature compensation of the output signal (S) of the LC oscillator (8) is effected using the measured temperature (T) and a temperature coefficient (K) which is assigned to the machining head (4) and can likewise be transmitted from the machining head (4) to the evaluation unit (2).
Method for temperature compensation of an LC oscillator (8) having a machining head (4) and serving for the capacitive measurement of a distance between the machining head (4) and a workpiece (7), in which an output signal (S) of the LC oscillator (8) is transmitted to an evaluation unit (2) arranged separately from the machining head (4), characterized in that
Machining head (4) having an LC oscillator (8) formed partly by it and serving for the capacitive measurement of a distance between the machining head (4) and a workpiece (7) to be machined, in which an output signal (S) of the LC oscillator (8) can be transmitted to an evaluation unit (2) separate from the machining head (4), characterized in that it has at least one temperature sensor (29) for measuring the temperature (T) of the LC oscillator (8), and in that the measured temperature (T) can be transmitted to the evaluation unit (2).
Dependencies are inferred from the claim text.