MEASURING PROBE WITH SENSING COILS AND TEMPERATURE COMPENSATION

A measuring probe for a coordinate measuring machine is provided. The measuring probe includes a stylus position detection portion with a sensing coil configuration, signal processing and control circuitry and a temperature dependent compensation portion. The temperature dependent compensation porti...

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Bibliographische Detailangaben
Hauptverfasser: HAMNER, Christopher Richard, HARSILA, Scott Allen
Format: Patent
Sprache:eng ; fre ; ger
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Beschreibung
Zusammenfassung:A measuring probe for a coordinate measuring machine is provided. The measuring probe includes a stylus position detection portion with a sensing coil configuration, signal processing and control circuitry and a temperature dependent compensation portion. The temperature dependent compensation portion includes a temperature dependent component that is coupled to at least part of the sensing coil configuration such that a change in a characteristic of the temperature dependent component due to an increase in temperature of the temperature dependent component causes a ratio of a first current to a second current to increase in the sensing coil configuration, wherein the first and second currents are in at least one first sensing coil and at least one second sensing coil, respectively, of the sensing coil configuration. Such implementations are configured to increase accuracy of the processed signals by at least partially compensating for certain affects that occur due to temperature changes.