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김지웅(Ji woong Kim),백승호(Seung ho Peak),김호식(Ho sik Kim),임석봉(Seuk bong Lim) 한국자동차공학회 2007 한국자동차공학회 춘 추계 학술대회 논문집 Vol.- No.-
In response to the requirement of high precious dimension in optical torque and angle sensor in motor driven power steering (MOPS). Specially, 2 optical disks detecting twisted angle between torsion bar have complex shapes and windows. Disks playa significant role in system performance. Not only dimension and electroforming condition should be considered in torque detection mechanism using lighting source and photo array. Other process like machining and press is too expensive and poor tolerance to make a required performance. Also optical characteristics are affected by shadow profile which is detected from optical array. This paper shows the design considerations of optical disk for optical sensor in motor driven power steering application. Disk requirements, optical characteristics and other critical design issues of such electroforming will also be discussed.