Title :
Study on a novel SAW sensor in TPMS based on the P-matrix model
Author :
Zheng, Liang ; Liu, Tie ; Hu, Hong ; Li, Tian L.
Author_Institution :
Dept. of Natural Sci., Harbin Inst. of Technol., Shenzhen
Abstract :
Tire pressure monitoring system (TPMS) is an electronic system monitoring the air pressure in a pneumatic tire at real time. The goal of this paper is to analyze and optimize the design of a novel wireless passive SAW sensor used in TPMS, via theoretical derivation and simulations. For this purpose, a P- matrix with new expression is derived utilizing the coupling-of-modes (COM) theory. The applicability and accuracy of the new P-matrix expression in analyzing the unitary symmetry IDT and the reflector have been validated. The analysis of the insert loss (IL) of the novel SAW sensor based on this P-matrix model reveals that this design has excellent performance after the parametric optimization.
Keywords :
matrix algebra; pneumatic systems; pressure measurement; surface acoustic wave sensors; P-matrix model; air pressure monitoring; coupling-of-modes theory; insert loss analysis; parametric optimization; pneumatic tire; tire pressure monitoring system; unitary symmetry IDT; wireless passive SAW sensor; Analytical models; Design optimization; Insertion loss; Monitoring; Performance analysis; Performance loss; Real time systems; Surface acoustic waves; Tires; Wireless sensor networks; P-matrix; SAW sensor; TPMS; insert loss;
Conference_Titel :
Nano/Micro Engineered and Molecular Systems, 2008. NEMS 2008. 3rd IEEE International Conference on
Conference_Location :
Sanya
Print_ISBN :
978-1-4244-1907-4
Electronic_ISBN :
978-1-4244-1908-1
DOI :
10.1109/NEMS.2008.4484372
