Title:
RAILWAY WHEEL SENSOR EMPLOYING HALL EFFECT DEVICES
Document Type and Number:
WIPO Patent Application WO2007003040
Kind Code:
A9
Abstract:
A sensor for detecting the presence of wheels of a rail vehicle is disclosed. The sensor comprises first and second Hall Effect devices, a magnet for supplying a magnetic field to the first and second Hall Effect devices, means for mounting the first and second Hall Effect devices and the magnet adjacent to the rail, whereby a railway vehicle wheel changes the magnetic field in the Hall Effect devices to produce wheel indication signals, and a processing circuit for receiving the wheel indication signals from the first and second Hall Effect devices and for producing an output signal in response to the wheel indication signals. A method of detecting the presence of a wheel is also provided.
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Inventors:
APPLEBY GLEN (CA)
BROWN STEPHEN W (CA)
PAPAZOGLOU KOSTAS (CA)
BROWN STEPHEN W (CA)
PAPAZOGLOU KOSTAS (CA)
Application Number:
PCT/CA2006/001073
Publication Date:
May 03, 2007
Filing Date:
June 29, 2006
Export Citation:
Assignee:
PORTEC RAIL PRODUCTS LTD (CA)
APPLEBY GLEN (CA)
BROWN STEPHEN W (CA)
PAPAZOGLOU KOSTAS (CA)
APPLEBY GLEN (CA)
BROWN STEPHEN W (CA)
PAPAZOGLOU KOSTAS (CA)
International Classes:
B61L1/08; B61L1/06
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