发明授权
- 专利标题： Polarization apparatus and polarization method of coaxial flexible piezoelectric cable
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申请号： US10020474申请日： 2001-12-12
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公开(公告)号： US06593681B2公开(公告)日： 2003-07-15
- 发明人: Mitsuo Ebisawa , Takeshi Nagai , Narutoshi Kanazawa , Masahiko Ito , Yuko Fujii , Tooru Sugimori
- 申请人： Mitsuo Ebisawa , Takeshi Nagai , Narutoshi Kanazawa , Masahiko Ito , Yuko Fujii , Tooru Sugimori
- 优先权： JP2000-381866 20001215; JP2001-077883 20010319; JP2001-077884 20010319; JP2001-234555 20010802
- 主分类号： H01L41087
- IPC分类号： H01L41087
摘要：
A polarization apparatus is provided wherein a piezoelectric body tube 3 is wound around a first rotation drum 5 and a second rotation drum 6 and a coaxial flexible piezoelectric body 2 is polarized while the piezoelectric body tube 3 is wound. According to the polarization apparatus, polarization can be conducted except for the coaxial flexible piezoelectric body 2 of the portion containing a defect and a defect existing in the piezoelectric body tube 3 of a given length can also be detected before an outer electrode 4 is formed.
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