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Chipless Wireless Temperature Sensor for Machine Tools Based on a Dielectric Ring Resonator

Alejandro, Jiménez Sáez and Polat, Ersin and Mandel, Christian and Schüßler, Martin and Kubina, Bernd and Scherer, Timo and Lautenschläger, Nils and Jakoby, Rolf (2016):
Chipless Wireless Temperature Sensor for Machine Tools Based on a Dielectric Ring Resonator.
In: Proceedings of the 30th anniversary Eurosensors Conference – Eurosensors 2016, Elsevier Ltd, Budapest (Hungary), Sepember 4th–7th, 2016, [Conference or Workshop Item]

Abstract

This paper presents a wireless temperature sensor designed for the monitoring of machine tools, where valuable workpieces are processed and a defective tool can lead to costly damage to the workpiece. Since cutting tools quickly deteriorate at high temperatures, a measurement of the tool’s temperature allows monitoring its state. A wireless measurement is advantageous due to the high angular velocities achieved by the tool. The oil used to cool down the tool and the chips coming out of the workpiece shadow the line-of-sight condition necessary for infrared measurements. In addition, temperatures above 200 ºC are achieved, making the employment of silicon-based chips hardly feasible. In this paper, the temperature is read from the resonance frequency of a dielectric resonator mounted on the tool by means of radio-frequency backscattering techniques. A successful temperature measurement has been performed up to 300 ºC to test the stability of the sensor. Furthermore, system tests have been performed in a real machine tool where the sensor is interrogated from outside the machine tool through its door, with the tool rotating at up to 10,000 rpm. With this sensor, real-time monitoring of the tool temperature becomes feasible without altering the current workflow of the machine tool.

Item Type: Conference or Workshop Item
Erschienen: 2016
Creators: Alejandro, Jiménez Sáez and Polat, Ersin and Mandel, Christian and Schüßler, Martin and Kubina, Bernd and Scherer, Timo and Lautenschläger, Nils and Jakoby, Rolf
Title: Chipless Wireless Temperature Sensor for Machine Tools Based on a Dielectric Ring Resonator
Language: English
Abstract:

This paper presents a wireless temperature sensor designed for the monitoring of machine tools, where valuable workpieces are processed and a defective tool can lead to costly damage to the workpiece. Since cutting tools quickly deteriorate at high temperatures, a measurement of the tool’s temperature allows monitoring its state. A wireless measurement is advantageous due to the high angular velocities achieved by the tool. The oil used to cool down the tool and the chips coming out of the workpiece shadow the line-of-sight condition necessary for infrared measurements. In addition, temperatures above 200 ºC are achieved, making the employment of silicon-based chips hardly feasible. In this paper, the temperature is read from the resonance frequency of a dielectric resonator mounted on the tool by means of radio-frequency backscattering techniques. A successful temperature measurement has been performed up to 300 ºC to test the stability of the sensor. Furthermore, system tests have been performed in a real machine tool where the sensor is interrogated from outside the machine tool through its door, with the tool rotating at up to 10,000 rpm. With this sensor, real-time monitoring of the tool temperature becomes feasible without altering the current workflow of the machine tool.

Volume: 168
Uncontrolled Keywords: dielectric resonator antennas; temperature sensors; machine tools; radio frequency; passive microwave remote sensing
Divisions: 16 Department of Mechanical Engineering
16 Department of Mechanical Engineering > Institute of Production Management, Technology and Machine Tools (PTW)
16 Department of Mechanical Engineering > Institute of Production Management, Technology and Machine Tools (PTW) > Machining Technology
18 Department of Electrical Engineering and Information Technology
18 Department of Electrical Engineering and Information Technology > Institute for Microwave Engineering and Photonics > Microwave Engineering
18 Department of Electrical Engineering and Information Technology > Institute for Microwave Engineering and Photonics
Event Title: Proceedings of the 30th anniversary Eurosensors Conference – Eurosensors 2016, Elsevier Ltd
Event Location: Budapest (Hungary)
Event Dates: Sepember 4th–7th, 2016
Date Deposited: 27 Feb 2017 14:05
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