A Novel Love Wave Mode Sensor Waveguide Layer with Microphononic Crystals
| Autor: | Honglang Li, Wei Luo, Litian Wang, Wencan Chen, Xihui Mu, Lu Zixiao, Yahui Tian |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Technology
QH301-705.5 Acoustics QC1-999 Microfluidics love wave mode surface acoustic wave law.invention law sensor General Materials Science Sensitivity (control systems) Biology (General) phononic crystals Instrumentation QD1-999 Fluid Flow and Transfer Processes Process Chemistry and Technology Attenuation Physics Surface acoustic wave General Engineering Engineering (General). Civil engineering (General) delay line Line (electrical engineering) Computer Science Applications Love wave Chemistry Transmission (telecommunications) TA1-2040 Waveguide |
| Zdroj: | Applied Sciences Volume 11 Issue 17 Applied Sciences, Vol 11, Iss 8123, p 8123 (2021) |
| ISSN: | 2076-3417 |
| DOI: | 10.3390/app11178123 |
| Popis: | Surface acoustic wave (SAW) sensors have been applied in various areas with many advantages, such as their small size, high sensitivity and wireless and passive form. Love wave mode sensors, an important kind of SAW sensor, are mostly used in biology and chemistry monitoring, as they can be used in a liquid environment. Common Love wave mode sensors consist of a delay line with waveguide and sensitive layers. To extend the application of Love wave mode sensors, this article reports a novel Love wave mode sensor consisting of a waveguide layer with microphononic crystals (PnCs). To analyze the properties of the new structure, the band structure was calculated, and transmission was obtained by introducing delay line structures and quasi-three-dimensional models. Furthermore, devices with a traditional structure and novel structure were fabricated. The results show that, by introducing the designed microstructure of phononic crystals in the waveguide layer, the attenuation was barely increased, and the frequency was shifted by a small amount. In the liquid environmental experiments, the novel structure with micro PnCs shows even better character than the traditional one. Moreover, the introduced microstructure can be extended to microreaction tanks for microcontrol. Therefore, this novel Love wave mode sensor is a promising application for combining acoustic sensors and microfluidics. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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