Method of determining the temperature of a workpiece in a flexible manufacturing system

US4895454A · kind A · utility

Assignee

• Carl Zeiss Stiftung · DE

Inventors

• Bernd Kammleiter · Oberkochen, DE
• Karl Schepperle · Oberkochen, DE

Key dates

• Filing date: Sep 6, 1988
• Grant date: Jan 23, 1990
• Expiry date: Sep 6, 2008

Classification

• Technology area (CPC G): Physics
• CPC primary: G01K1/024
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

The invention is directed to a method providing for the automatic temperature measurement with a precision which is required for the correction of errors introduced by temperature in a coordinate measurement made on a workpiece. To achieve this automatic temperature measurement, a self-sufficient sensor assembly is attached to the workpiece carrier or the workpiece itself and includes a temperature sensor, a measuring electronic circuit and a voltage supply. The sensor assembly runs through the material flow on the pallet with the workpiece and wirelessly transmits the measured temperature values of the workpiece to appropriate remote stations.