1305 近赤外線画像に基づく自動化に適した歯当たり評価手法(歯車の振動特性,一般講演)

概要

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Tooth contact evaluation has been conventionally performed visually in the gear manufacturing fields. With automation, the boundary of the contact area is unclear due to scattered light when visible light is used to obtain an image to evaluate tooth contact. We have focused on the use of a near-infrared to prevent scattered light First, it is confirmed that the tooth contact image obtained by image binarization is hardly affected by the image threshold. Second, we propose a new method to extract the boundary part of the tooth contact by differential calculation of the fine near-infrared image. These methods make it possible to automatically divide a near-infrared image into the contact area, the boundary and the non-contact area Finally, the obtained result is compared with the tooth contact calculated from the measured tooth surface. As a result, we demonstrated that the near-infrared image method is effective for automatic tooth contact evaluation.
2010-04-18