| Autor: |
T. Aftab, Adnan Yousaf, J.-M. Boccard, Leonhard Reindl, Joachim Hoppe, R. Hutter |
| Rok vydání: |
2014 |
| Předmět: |
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| Zdroj: |
WiSEE |
| DOI: |
10.1109/wisee.2014.6973077 |
| Popis: |
This paper presents a novel wireless and passive temperature measurement system for temperatures up to 700°C. The sensor is based on a dielectric resonator composed of zirconium tin titanate (Zr 0.8 Sn 0.2 TiO 4 , ZST) and operates at 2.37 GHz. The measurements are conducted in a chamotte stone oven at a distance of 1.20 m between the sensor and the reader antenna. The external electromagnetic fields of the dielectric resonator were adequate for the far-field coupling without the need to use any conducting part on its surface. This measurement method allows to retain a quality factor higher than 670 at 700°C, which is sufficient for the used RADAR based interrogation unit to keep a satisfying temperature measurement accuracy. The effect of temperature on the tracked sensor resonance frequency, signal-to-noise ratio (SNR) and Q factor are presented. Moreover the concept is suitable for applications operating at high temperatures such as aerospace applications, where the use of passive, wireless and metalization-free sensors is mandatory. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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