Location

Williamsburg, VA

Start Date

1-1-1988 12:00 AM

Description

Optimization of the speed of production and the control of quality of extruded aluminum products requires the measurement of the temperature of the extruded product during processing. This temperature measurement should be by a non-contact sensor placed as close as possible to the extrusion die, and the measurement should be accomplished and reported with sufficient rapidity to be used in a feedback control loop. For this purpose, an eddy current sensor which performs an on-line measurement of resistivity and converts the measurement to the corresponding temperature has been developed. This project is being conducted jointly by The Aluminum Association and the National Bureau of Standards.

Book Title

Review of Progress in Quantitative Nondestructive Evaluation

Volume

7B

Chapter

Chapter 7: Characterization of Materials

Section

Process Control

Pages

1599-1605

DOI

10.1007/978-1-4613-0979-6_87

Language

en

File Format

application/pdf

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Jan 1st, 12:00 AM

An Eddy Current Sensor for the Measurement of Resistivity and Temperature of Aluminum Rod during Extrusion Processing

Williamsburg, VA

Optimization of the speed of production and the control of quality of extruded aluminum products requires the measurement of the temperature of the extruded product during processing. This temperature measurement should be by a non-contact sensor placed as close as possible to the extrusion die, and the measurement should be accomplished and reported with sufficient rapidity to be used in a feedback control loop. For this purpose, an eddy current sensor which performs an on-line measurement of resistivity and converts the measurement to the corresponding temperature has been developed. This project is being conducted jointly by The Aluminum Association and the National Bureau of Standards.