发明申请
US20100314300A1 STIFFNESS DETECTOR, STIFFNESS DETECTION METHOD, AND PAPER SHEET PROCESSOR INCLUDING STIFFNESS DETECTOR
有权
硬度检测器，强度检测方法和包含强度检测器的纸张处理器
- 专利标题： STIFFNESS DETECTOR, STIFFNESS DETECTION METHOD, AND PAPER SHEET PROCESSOR INCLUDING STIFFNESS DETECTOR
- 专利标题（中）： 硬度检测器，强度检测方法和包含强度检测器的纸张处理器
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申请号： US12717383申请日： 2010-03-04
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公开(公告)号： US20100314300A1公开(公告)日： 2010-12-16
- 发明人: Kazuhiro Itsumi , Takahiro Yamamoto , Takahisa Nakano , Seiji Ikari , Junji Miura , Tsutomu Saito , Takanobu Nishimura
- 申请人： Kazuhiro Itsumi , Takahiro Yamamoto , Takahisa Nakano , Seiji Ikari , Junji Miura , Tsutomu Saito , Takanobu Nishimura
- 申请人地址： JP Tokyo
- 专利权人： KABUSHIKI KAISHA TOSHIBA
- 当前专利权人： KABUSHIKI KAISHA TOSHIBA
- 当前专利权人地址： JP Tokyo
- 优先权： JP2009-140375 20090611
- 主分类号： B07C5/34
- IPC分类号： B07C5/34 ; G01N3/40
摘要：
A stiffness detector transmits acoustic waves to a paper sheet at a predetermined angle to excite Lamb waves. The stiffness detector receives leaky waves of the Lamb waves propagated through the paper sheet at different angles with respect to the paper sheet by a plurality of reception sensors. The stiffness detector is configured to specify a maximum leak angle at which a leak amount of the acoustic waves from the paper sheet becomes maximum based on outputs from the plurality of reception sensors in the reception module and to judge a degree of fatigue of the paper sheet based on the specified maximum leak angle.