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A Wireless LC Sensor Coated with Ba0.9Bi0.066TiO3 for Measuring Temperature.

Radovanovic M, Mojic-Lante B, Cvejin KN, Srdic VV, Stojanovic GM - Sensors (Basel) (2015)

Bottom Line: This paper presents a passive LC wireless sensor for measuring temperature.The sensor is designed as a parallel connection of a spiral inductor and an interdigitated capacitor and it was fabricated in a conductive layer using LTCC (Low Temperature Co-fired Ceramic) technology.The measurements of S-parameter of the sensor were performed using a Vector Network Analyzer (E5071B, Agilent Technologies, Santa Clara, CA, USA), whose port was connected to the antenna coil that was placed around the sensor in order to be able to wirelessly detect temperature, in the temperature range from 25 °C to 165 °C.

View Article: PubMed Central - PubMed

Affiliation: Faculty of Technical Sciences, University of Novi Sad, Trg Dositeja Obradovica 6, Novi Sad 21000, Serbia. rmilan@uns.ac.rs.

ABSTRACT
This paper presents a passive LC wireless sensor for measuring temperature. The sensor is designed as a parallel connection of a spiral inductor and an interdigitated capacitor and it was fabricated in a conductive layer using LTCC (Low Temperature Co-fired Ceramic) technology. The inderdigitated capacitor electrodes were coated with a thin film of bismuth doped barium titanate (Ba0.9Bi0.066TiO3), whose permittivity changes with temperature, which directly induces changes in the capacitance of the interdigitated capacitor and consequently changes the resonant frequency of the sensor. The measurements of S-parameter of the sensor were performed using a Vector Network Analyzer (E5071B, Agilent Technologies, Santa Clara, CA, USA), whose port was connected to the antenna coil that was placed around the sensor in order to be able to wirelessly detect temperature, in the temperature range from 25 °C to 165 °C.

No MeSH data available.


X-ray diffractogram of the BBT powder.
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sensors-15-11454-f007: X-ray diffractogram of the BBT powder.

Mentions: X-ray diffraction of the powder confirmed the presence of BaTiO3 tetragonal phase, since all the characteristic diffractions were observed (Figure 7). Additionally, the presence of small amount of BaCO3 was detected.


A Wireless LC Sensor Coated with Ba0.9Bi0.066TiO3 for Measuring Temperature.

Radovanovic M, Mojic-Lante B, Cvejin KN, Srdic VV, Stojanovic GM - Sensors (Basel) (2015)

X-ray diffractogram of the BBT powder.
© Copyright Policy
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4481984&req=5

sensors-15-11454-f007: X-ray diffractogram of the BBT powder.
Mentions: X-ray diffraction of the powder confirmed the presence of BaTiO3 tetragonal phase, since all the characteristic diffractions were observed (Figure 7). Additionally, the presence of small amount of BaCO3 was detected.

Bottom Line: This paper presents a passive LC wireless sensor for measuring temperature.The sensor is designed as a parallel connection of a spiral inductor and an interdigitated capacitor and it was fabricated in a conductive layer using LTCC (Low Temperature Co-fired Ceramic) technology.The measurements of S-parameter of the sensor were performed using a Vector Network Analyzer (E5071B, Agilent Technologies, Santa Clara, CA, USA), whose port was connected to the antenna coil that was placed around the sensor in order to be able to wirelessly detect temperature, in the temperature range from 25 °C to 165 °C.

View Article: PubMed Central - PubMed

Affiliation: Faculty of Technical Sciences, University of Novi Sad, Trg Dositeja Obradovica 6, Novi Sad 21000, Serbia. rmilan@uns.ac.rs.

ABSTRACT
This paper presents a passive LC wireless sensor for measuring temperature. The sensor is designed as a parallel connection of a spiral inductor and an interdigitated capacitor and it was fabricated in a conductive layer using LTCC (Low Temperature Co-fired Ceramic) technology. The inderdigitated capacitor electrodes were coated with a thin film of bismuth doped barium titanate (Ba0.9Bi0.066TiO3), whose permittivity changes with temperature, which directly induces changes in the capacitance of the interdigitated capacitor and consequently changes the resonant frequency of the sensor. The measurements of S-parameter of the sensor were performed using a Vector Network Analyzer (E5071B, Agilent Technologies, Santa Clara, CA, USA), whose port was connected to the antenna coil that was placed around the sensor in order to be able to wirelessly detect temperature, in the temperature range from 25 °C to 165 °C.

No MeSH data available.