System and method for determination of error parameters for performing self-calibration and other functions without an external position reference in a transducer

摘要: A system and method for determination of error parameters performing self-calibration other functions in a transducer. The utilizes the minimum maximum values output signals To obtain these values, are measured at various times according to sample timing, as read head is scanned relative scale. offset each phase determined be equal average between voltages. signal amplitudes difference voltages, divided by two. By comparing amplitude phase, mismatch found. relation may first removing errors from then two given point what they ought with no error. described provides fast calibration which requires amount data, can automatically run background mode without inhibiting normal transducer operation.