Abstract A pulse generator is comprised of an asymmetrical magnet assembly and a Hall sensor operative for generating an electrical signal upon the application of a magnetic field thereto. The Hall sensor and magnet assembly are mounted for relative movement for the generation of a train of electrical signals in response to relative displacement therebetween. The asymmetrical multi-pole magnets in the magnet assembly have a plurality of symmetrically spaced pole pairs with each pole pair including a magnetic pole of predominant polarity occupying a substantially greater area than the pole of opposite polarity. The predominant pole is sufficiently strong to provide a salient magnetic field of essentially single polarity. A magnetizing head also is provided for producing the asymmetrical pole character of the magnet.
In a pulse generator comprising magnetic field means and a Hall sensor operative for generating an electrical signal upon the application of a magnetic field thereto, the Hall sensor and magnetic field means being mounted for relative movement for generating a train of electrical signals, the combination wherein the magnetic field means includes an asymmetrical multi-pole magnet having a plurality of symmetrically spaced pole pairs with each pole pair including a predominant magnetic pole of one polarity and a subservient magnetic pole of the opposite polarity.
Claim 2
Dependent Claim
86 words
In a pulse generator comprising magnetic field means and a Hall sensor operative for generating an electrical signal upon the application of a magnetic field thereto, the Hall sensor and magnetic field means being mounted for relative movement for generating a train of electrical signals, the combination wherein the magnetic field means includes an asymmetrical multi-pole magnet having a plurality of symmetrically spaced pole pairs with each pole pair including a predominant magnetic pole of one polarity and a subservient magnetic pole of the opposite polarity.
Claim 3
Dependent Claim
33 words
The pulse generator of claim 1 wherein the magnetic field means includes a pair of spaced coaxially aligned magnetic discs having an identical array of predominant and subservient poles positioned in axial alignment.
Claim 4
Dependent Claim
21 words
The pulse generator of claim 1 wherein the salient magnetic field produced by the asymmetrical multi-pole magnet is of single polarity.
Claim 5
Dependent Claim
28 words
The pulse generator of claim 1 wherein the magnet is a disc and the predominant pole occupies a segment twice as large as the pole of opposite polarity.