Use of a ring magnet to achieve a magnetic sensor pulse train output

A method of utilizing a ring magnet for magnetic sensing applications thereof, said method comprising the step of:

• providing a ring magnet comprising a sensing target, wherein said ring magnet is located proximate to a magnetoresistive sensor device that is insensitive to magnetic pole polarities;
• configuring said magnetoresistive sensor device to comprise at least one anisotropic magnetoresistive bridge circuit, such that said magnetoresistive sensor device comprises a two-pulse per pole anisotropic magnetoresistive sensor device;
• magnetizing said ring magnet to comprise at least fifty-eight magnetic poles, wherein at least one pole thereof is larger than at least one other pole thereof;
• and
• producing an output signal from said magnetoresistive sensor device, wherein said output signal is independent of a rotation of said sensing target.

A system for utilizing a ring magnet in magnetic sensing applications thereof, said system comprising:

• a magnetoresistive sensor device that is insensitive to magnetic pole polarities;
• a ring magnet located comprising a sensing target, wherein said ring magnet is associated with said magnetoresistive sensor device and is magnetized to comprise a plurality of magnetic poles, wherein at least one pole thereof is larger than at least one other pole thereof;
• and
• a digital circuit for producing an output signal from said magnetoresistive sensor device, wherein said output signal is independent of a rotation of said sensing target and wherein said digital circuit is associated with said magnetoresistive sensor device.

A system for utilizing a ring magnet in magnetic sensing applications thereof, said system comprising:

• a magnetoresistive sensor device associated with a ring magnet, wherein said magnetoresistive sensor device is insensitive to magnetic pole polarities and comprises at least one anisotropic magnetoresistive bridge circuit thereby forming a two-pulse per pole anisotropic magnetoresistive sensor device thereof;
• a ring magnet associated with said magnetoresistive sensor device, wherein said ring magnet is symmetrically magnetized and comprises a sensing target and is magnetized to include a plurality of magnetic poles, wherein at least one pole thereof is larger than at least one other pole thereof;
• and
• a digital circuit for producing an output signal from said magnetoresistive sensor device, wherein said output signal is independent of a rotation of said sensing target and wherein said magnetoresistive sensor device is rotationally insensitive due to a symmetrical magnetization of said ring magnet.