Title :
A wireless pressure-measurement system based on SAW transponder technique
Author :
Schimetta, G. ; Dollinger, F. ; Springer, A. ; Weigel, R.
Author_Institution :
Inst. for Commun. & Inf. Eng., Linz Univ., Austria
Abstract :
A hybrid sensor system for tire pressure measurements is presented. We use a combination of a conventional capacitive pressure sensor together with a passive SAW transponder to build an impedance loaded reflective delay line which can be read out wirelessly. The sensor system together with a transceiver unit achieved a pressure resolution of at least ± 0.15 kPa within a measurement range of 100 to 400 kPa
Keywords :
capacitive sensors; pressure measurement; pressure sensors; surface acoustic wave delay lines; surface acoustic wave sensors; transceivers; transponders; 100 to 400 kPa; capacitive pressure sensor; hybrid sensor system; impedance loaded reflective delay line; passive SAW transponder; tire pressure measurements; transceiver unit; wireless pressure-measurement system; Capacitive sensors; Delay lines; Impedance; Pressure measurement; Sensor systems; Surface acoustic waves; Tires; Transceivers; Transponders; Wireless sensor networks;
Conference_Titel :
Microwaves, Radar and Wireless Communications. 2000. MIKON-2000. 13th International Conference on
Conference_Location :
Wroclaw
Print_ISBN :
83-906662-3-5
DOI :
10.1109/MIKON.2000.913946
