Magnetoelastic Humidity Sensors with TiO2 Nanotube Sensing Layers

ATALAY S., İZGİ T., KOLAT V. S., ERDEMOĞLU S., Inan O. O.

SENSORS, cilt.20, sa.2, 2020 (SCI-Expanded) identifier identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 20 Sayı: 2
  • Basım Tarihi: 2020
  • Doi Numarası: 10.3390/s20020425
  • Dergi Adı: SENSORS
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, Aerospace Database, Aqualine, Aquatic Science & Fisheries Abstracts (ASFA), Biotechnology Research Abstracts, CAB Abstracts, Communication Abstracts, Compendex, EMBASE, INSPEC, MEDLINE, Metadex, Veterinary Science Database, Directory of Open Access Journals, Civil Engineering Abstracts
  • Anahtar Kelimeler: magnetoelastic sensor, humidity, TiO2, QUARTZ-CRYSTAL MICROBALANCE, REMOTE QUERY MEASUREMENT, FLUID-FLOW VELOCITY, RESONANCE SENSORS, GRAPHENE OXIDE, WIRELESS, VISCOSITY, TEMPERATURE, PERFORMANCE, PH
  • İnönü Üniversitesi Adresli: Evet

Özet

In this study, TiO2 nanotubes (TiO2-NTs) are coated with a drop-casting method on Fe40Ni38Mo4B18 amorphous ferromagnetic ribbons and the humidity response of the prepared magnetoelastic sensors (MES) is investigated. The synthesis of TiO2-NTs is performed using a hydrothermal process. Sample characterization is carried out using X-ray diffraction and scanning electron microscopy. The results show that the sensors can measure moisture values in the range of 5% to 95% with very high precision and very low hysteresis. The humidity variation between 5% and 95% shows a change in the sensor resonance frequency of 3180 Hz, which is a significant change compared to many magnetoelastic humidity sensors developed so far.