Error proofing method for stator magnetic field of starter

The invention discloses an error proofing method for the stator magnetic field of a starter. The basic principle is as follows: a coil is adopted to approach a workpiece magnetic field; according to the Faraday electromagnetic induction principle, when the coil approaches the magnetic field workpiece, the magnetic field intensity of the coil is changed, so that induced current is generated; an amplification circuit is used for converting the induced current into a signal source capable of being processed by a PLC (programmable logic controller), and whether a product is qualified is judged according to preset parameters.