NTC thermistor ferrite composite for temperature sensing with reduced humidity influence
Конференцијски прилог (Објављена верзија)
Метаподаци
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Negative temperature coefficient (NTC) thermistor semiconducting oxides, such as ferrites used as resistance-based temperature sensors, remain in research focus, as they are basic building blocks of many electronic systems. In this work we have investigated NTC thermistor properties of a ferrite composite (MnFe2O4/Fe2O3) ceramics obtained by solid-state sintering in the form of a bulk sample with a diameter of 8.7 mm and thickness of 1.8 mm. We obtained a thermal (material) constant (B10,90) of 4390 K from measured impedance at 100 Hz in the temperature range 10 - 90 C and temperature sensitivity (alpha) of -4.87 %/K at 25 oC, that was within the range required for a commercial NTC thermistor material (B between 2000 and 5000, between -2 and 6% K at room temperature -25 oC). The influence of relative humidity (RH) in the range 30-90% at 25 and 50 C on impedance in the frequency range 50 Hz – 1 MHz was monitored. The obtained results showed that at 100 Hz the change in impedance was... from 8.15 to 3.56 Mohm at 25 oC and 2.81 to 1.65 Mohm for RH from 30 to 90%, indicating that the humidity influence was reduced compared to other NTC thermistor materials. Future work will focus on applying this ferrite composite in flexible printed temperature sensors.
Кључне речи:
Temperature sensing / NTC thermistor / ferrite composite / humidityИзвор:
Conference program and extended abstracts of the 47th International Spring Seminar on Electronics Technology "Trends in Electronics Manufacturing, Interconection Technology, and Microelectronics Packaging", 15-19 May 2024, Prague, Czech Republic, 2024, 24-25Издавач:
- Czech Technical University in Prague, Faculty of Electrical Engineering, Prague, Czech Republic
Финансирање / пројекти:
- Министарство науке, технолошког развоја и иновација Републике Србије, институционално финансирање - 200053 (Универзитет у Београду, Институт за мултидисциплинарна истраживања) (RS-MESTD-inst-2020-200053)
Институција/група
Institut za multidisciplinarna istraživanjaTY - CONF AU - Nikolić, Maria Vesna AU - Vasiljević, Zorka Z AU - Dojčinović, Milena PY - 2024 UR - http://rimsi.imsi.bg.ac.rs/handle/123456789/3210 AB - Negative temperature coefficient (NTC) thermistor semiconducting oxides, such as ferrites used as resistance-based temperature sensors, remain in research focus, as they are basic building blocks of many electronic systems. In this work we have investigated NTC thermistor properties of a ferrite composite (MnFe2O4/Fe2O3) ceramics obtained by solid-state sintering in the form of a bulk sample with a diameter of 8.7 mm and thickness of 1.8 mm. We obtained a thermal (material) constant (B10,90) of 4390 K from measured impedance at 100 Hz in the temperature range 10 - 90 C and temperature sensitivity (alpha) of -4.87 %/K at 25 oC, that was within the range required for a commercial NTC thermistor material (B between 2000 and 5000, between -2 and 6% K at room temperature -25 oC). The influence of relative humidity (RH) in the range 30-90% at 25 and 50 C on impedance in the frequency range 50 Hz – 1 MHz was monitored. The obtained results showed that at 100 Hz the change in impedance was from 8.15 to 3.56 Mohm at 25 oC and 2.81 to 1.65 Mohm for RH from 30 to 90%, indicating that the humidity influence was reduced compared to other NTC thermistor materials. Future work will focus on applying this ferrite composite in flexible printed temperature sensors. PB - Czech Technical University in Prague, Faculty of Electrical Engineering, Prague, Czech Republic C3 - Conference program and extended abstracts of the 47th International Spring Seminar on Electronics Technology "Trends in Electronics Manufacturing, Interconection Technology, and Microelectronics Packaging", 15-19 May 2024, Prague, Czech Republic T1 - NTC thermistor ferrite composite for temperature sensing with reduced humidity influence EP - 25 SP - 24 UR - https://hdl.handle.net/21.15107/rcub_rimsi_3210 ER -
@conference{ author = "Nikolić, Maria Vesna and Vasiljević, Zorka Z and Dojčinović, Milena", year = "2024", abstract = "Negative temperature coefficient (NTC) thermistor semiconducting oxides, such as ferrites used as resistance-based temperature sensors, remain in research focus, as they are basic building blocks of many electronic systems. In this work we have investigated NTC thermistor properties of a ferrite composite (MnFe2O4/Fe2O3) ceramics obtained by solid-state sintering in the form of a bulk sample with a diameter of 8.7 mm and thickness of 1.8 mm. We obtained a thermal (material) constant (B10,90) of 4390 K from measured impedance at 100 Hz in the temperature range 10 - 90 C and temperature sensitivity (alpha) of -4.87 %/K at 25 oC, that was within the range required for a commercial NTC thermistor material (B between 2000 and 5000, between -2 and 6% K at room temperature -25 oC). The influence of relative humidity (RH) in the range 30-90% at 25 and 50 C on impedance in the frequency range 50 Hz – 1 MHz was monitored. The obtained results showed that at 100 Hz the change in impedance was from 8.15 to 3.56 Mohm at 25 oC and 2.81 to 1.65 Mohm for RH from 30 to 90%, indicating that the humidity influence was reduced compared to other NTC thermistor materials. Future work will focus on applying this ferrite composite in flexible printed temperature sensors.", publisher = "Czech Technical University in Prague, Faculty of Electrical Engineering, Prague, Czech Republic", journal = "Conference program and extended abstracts of the 47th International Spring Seminar on Electronics Technology "Trends in Electronics Manufacturing, Interconection Technology, and Microelectronics Packaging", 15-19 May 2024, Prague, Czech Republic", title = "NTC thermistor ferrite composite for temperature sensing with reduced humidity influence", pages = "25-24", url = "https://hdl.handle.net/21.15107/rcub_rimsi_3210" }
Nikolić, M. V., Vasiljević, Z. Z.,& Dojčinović, M.. (2024). NTC thermistor ferrite composite for temperature sensing with reduced humidity influence. in Conference program and extended abstracts of the 47th International Spring Seminar on Electronics Technology "Trends in Electronics Manufacturing, Interconection Technology, and Microelectronics Packaging", 15-19 May 2024, Prague, Czech Republic Czech Technical University in Prague, Faculty of Electrical Engineering, Prague, Czech Republic., 24-25. https://hdl.handle.net/21.15107/rcub_rimsi_3210
Nikolić MV, Vasiljević ZZ, Dojčinović M. NTC thermistor ferrite composite for temperature sensing with reduced humidity influence. in Conference program and extended abstracts of the 47th International Spring Seminar on Electronics Technology "Trends in Electronics Manufacturing, Interconection Technology, and Microelectronics Packaging", 15-19 May 2024, Prague, Czech Republic. 2024;:24-25. https://hdl.handle.net/21.15107/rcub_rimsi_3210 .
Nikolić, Maria Vesna, Vasiljević, Zorka Z, Dojčinović, Milena, "NTC thermistor ferrite composite for temperature sensing with reduced humidity influence" in Conference program and extended abstracts of the 47th International Spring Seminar on Electronics Technology "Trends in Electronics Manufacturing, Interconection Technology, and Microelectronics Packaging", 15-19 May 2024, Prague, Czech Republic (2024):24-25, https://hdl.handle.net/21.15107/rcub_rimsi_3210 .