JP6791175B2 - 材質判別方法 - Google Patents
材質判別方法 Download PDFInfo
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- JP6791175B2 JP6791175B2 JP2018003912A JP2018003912A JP6791175B2 JP 6791175 B2 JP6791175 B2 JP 6791175B2 JP 2018003912 A JP2018003912 A JP 2018003912A JP 2018003912 A JP2018003912 A JP 2018003912A JP 6791175 B2 JP6791175 B2 JP 6791175B2
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- thickness
- resin
- transparent resin
- elastic wave
- sound velocity
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- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
- Length Measuring Devices Characterised By Use Of Acoustic Means (AREA)
Description
V’=D/T …(2)
1a,1b 接触部
2 超音波式厚さ計
2a 探触子
D 超音波
S 対象物
Claims (1)
- 機械的板厚測定手段を用いて透明樹脂の厚さAを測定するステップと、
前記厚さAの測定箇所近傍における前記透明樹脂中の弾性波の伝播時間Bを測定するステップと、
前記伝播時間Bに対する前記厚さAの比Cを算出し、比Cの値が予め設定された範囲内にあるか否かを判別することにより、前記透明樹脂がアクリル樹脂と塩化ビニル樹脂又はポリカーボネート樹脂とのどちらであるかを判別するステップと、
を含むことを特徴とする材質判別方法。
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JP2018003912A JP6791175B2 (ja) | 2018-01-15 | 2018-01-15 | 材質判別方法 |
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JP2018003912A JP6791175B2 (ja) | 2018-01-15 | 2018-01-15 | 材質判別方法 |
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JP2019124504A JP2019124504A (ja) | 2019-07-25 |
JP6791175B2 true JP6791175B2 (ja) | 2020-11-25 |
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Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63107850U (ja) * | 1986-12-27 | 1988-07-12 | ||
EP0600093B1 (en) * | 1992-06-25 | 1996-09-25 | Hitachi Construction Machinery Co., Ltd. | Apparatus for ultrasonic measurement |
JPH0611491A (ja) * | 1992-06-25 | 1994-01-21 | Hitachi Constr Mach Co Ltd | 鋳物の物理特性測定方法および超音波測定装置 |
JPH0792142A (ja) * | 1993-09-21 | 1995-04-07 | Hitachi Constr Mach Co Ltd | 超音波測定装置 |
JPH08271488A (ja) * | 1995-03-30 | 1996-10-18 | Sekisui Chem Co Ltd | Frpm管の材質評価方法 |
JP2001153849A (ja) * | 1999-11-29 | 2001-06-08 | Toshiba Tungaloy Co Ltd | 熱可塑性樹脂成形品の不良品判別測定機 |
JP4656754B2 (ja) * | 2001-05-01 | 2011-03-23 | 秀郎 西野 | 管パラメーター推定方法、管材質の状態評価方法及び管の検査方法並びにこれらに用いられる管パラメーター推定装置 |
JP5612535B2 (ja) * | 2011-04-28 | 2014-10-22 | 大阪瓦斯株式会社 | 敷設鋳鉄管の材質判定方法及び敷設鋳鉄管材質判定システム |
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