A Wireless Pressure Measurement System Based on TiO2 Interdigitated Sensors

Author

Arshak, K. ; Arshak, A. ; Morris, D. ; Korostynska, O. ; Jafer, E.

Author_Institution

Limerick Univ.

fYear

2005

fDate

Oct. 30 2005-Nov. 3 2005

Firstpage

12

Lastpage

15

Abstract

The ability to monitor pressure remotely is of particular importance in medical and environmental applications as it is less labour intensive, safer and offers peace of mind to the general public. To meet this demand, a prototype system using TiO₂ thick film interdigitated capacitors has been developed. The circuit is based on the principle of capacitance-frequency-voltage conversion and has been designed to minimize power consumption. The sensor was tested under hydrostatic pressure ranging from 0-17 kPa and high sensitivity (DeltaV=47 mV) with low hysteresis (4 %) was recorded. It can be seen that this approach may provide cost effective, reliable devices for wireless sensing applications

Keywords

capacitive sensors; monitoring; pressure measurement; pressure sensors; thick film capacitors; 0 to 17 kPa; TiO₂; capacitance frequency voltage conversion; environmental applications; hydrostatic pressure; medical applications; power consumption; pressure measurement system; pressure monitoring; thick film interdigitated capacitors; wireless sensing applications; Biomedical monitoring; Capacitance; Capacitors; Circuits; Pressure measurement; Prototypes; Remote monitoring; Sensor systems; Thick films; Wireless sensor networks;

fLanguage

English

Publisher

ieee

Conference_Titel

Sensors, 2005 IEEE

Conference_Location

Irvine, CA

Print_ISBN

0-7803-9056-3

Type

conf

DOI

10.1109/ICSENS.2005.1597625

Filename

1597625