Study on a novel SAW sensor in TPMS based on the P-matrix model

Zheng, Liang; Li, Shipeng; Hu, Hong; Li, T.L.

doi:10.1109/nems.2008.4484372

Cited by 1 publication

(1 citation statement)

References 14 publications

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“…A P-matrix with new expression derived utilizing the COM theory is used to analyze the tire pressure monitoring system (TPMS). [15] The analysis of insertion loss (IL) of the novel SAW sensor based on the new P-matrix model revealed that this design had excellent performance after the parametric optimization. Trivedi et al [16] presented the 3D finite element simulation and analysis of Love wave resonator with different guiding layer materials and investigation of high mass sensitivity caused by the coupled resonance effect with ZnO nanorods on the device surface.…”

Section: Introductionmentioning

confidence: 99%

Finite element simulation of Love wave sensor for the detection of volatile organic gases

Wang¹,

Liang²,

Shang³

et al. 2022

Chinese Phys. B

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The 3D finite element (3D-FE) simulation and analysis of Love wave sensors based on PIB layers/SiO2/ST-90°X quartz structure, as well as the investigation of coupled resonance effect on the acoustic properties of the devices, are presented in this paper. The mass sensitivity of the basic Love wave device with SiO2 guiding layers solved analytically. And the highest mass sensitivity of 128 m2/kg is obtained as h s/λ =0.175. The sensitivity of the Love wave sensors for sensing VOCs is greatly improved due to the presence of coupled resonance induced by the PIB nanorods on the device surface. The frequency shifts of the sensor corresponding to CH2Cl2, CHCl3, CCl4, C2Cl4, CH3Cl and C2HCl3 with the concentration of 100 ppm are 1.431 kHz, 5.507 kHz, 13.437 kHz, 85.948 kHz, 0.127 kHz and 17.879 kHz, respectively. The viscoelasticity influence of sensitive material on the characteristics of SAW sensors is also studied. Taking account of the viscoelasticity of PIB layers, the sensitivities of SAW sensors with the PIB film and PIB nanorods decay in different degree. The gas sensing property of Love wave sensor with PIB nanorods is superior to that of the PIB films. Meanwhile, the Love wave sensors with PIB sensitive layers show good selectivity to C2Cl4, making it an ideal selection for gas sensing applications.

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Section: Introductionmentioning

confidence: 99%