Title:
CAPACITIVE PRESSURE SENSOR
Document Type and Number:
WIPO Patent Application WO2003103992
Kind Code:
A3
Abstract:
A capacitive pressure sensor comprises a pair of conductive plates (36,38) surrounding a compressible dielectric (34) to form a capacitor. Changes in pressure create changes in the capacitance of the capacitor which in turn may be measured to determine the changes in pressure. The pressure sensor may be constructed to be temperature and rotational force compensated so that it may be positioned in a tyre. A further embodiment uses the conductive plates (36,38) to form a radiating element for the sensor such that it may wirelessly communicate with a remote interrogator.
Inventors:
FORSTER IAN J
Application Number:
PCT/IB2003/003158
Publication Date:
February 26, 2004
Filing Date:
June 06, 2003
Export Citation:
Assignee:
MARCONI INTELLECTUAL PTY (US)
International Classes:
B60C23/04; (IPC1-7): B60C23/04
Foreign References:
| DE3023218A1 | 1982-02-25 | |||
| US20010008083A1 | 2001-07-19 |
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