Transactions of the Korean Society for Noise and Vibration Engineering (한국소음진동공학회논문집)

The Korean Society for Noise and Vibration Engineering (한국소음진동공학회)
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Analysis of Magnetic Characteristics for a Noncontact Magnetostrictive Sensor Simultaneously Measuring Rotational Speed and Force

회전속도와 탄성파를 동시에 측정하는 비접촉 자왜형 센서의 자기적 특성 분석

  • 이호철 (대구가톨릭대학교 기계자동차공학부)
  • Published : 2009.04.20
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Abstract

This work is the attempt to give qualitative explanations to complex magnetic phenomena which are observed in the previously proposed magnetostrictive sensor capable of ultrasonic waves and rotational speed measurement. The law of approach is adopted as analysis tool in order to account for some extraordinary output patterns and proved to be effective. The distance between the anhysteretic curve current magnetic state and the variation of anhysteretic curve by stress mainly determine the sensor output shapes and their uniqueness. It is also experimentally verified that the precisely determined bias magnetic field strength can not only remove the unusual output parts but also maximize its sensitivity.

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References

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