JP2011095033A - 張力測定方法 - Google Patents
張力測定方法 Download PDFInfo
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- JP2011095033A JP2011095033A JP2009247647A JP2009247647A JP2011095033A JP 2011095033 A JP2011095033 A JP 2011095033A JP 2009247647 A JP2009247647 A JP 2009247647A JP 2009247647 A JP2009247647 A JP 2009247647A JP 2011095033 A JP2011095033 A JP 2011095033A
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- 230000005291 magnetic effect Effects 0.000 claims abstract description 62
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- 230000005415 magnetization Effects 0.000 claims abstract description 33
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Abstract
【解決手段】磁性体の張力測定を開始する前に、磁性体にその飽和漸近磁化範囲の磁界下で使用荷重領域の上限値以上の荷重を負荷する工程を1回以上実施して、その磁化状態を理想磁化曲線に近づけておき、測定開始時に計測誤差の主因となる非可逆磁化変化が生じないようにすることにより、測定開始時から精度よく張力測定を行えるようにしたのである。
【選択図】図3
Description
2 磁化器
3 スペーサ
4 ホール素子
5 増幅器
6 ヨーク
7 永久磁石
11 測定用磁性体
12 引張試験機
13 試験用ケーブル
14 接続部品
15 ロードセル
A 磁性体
Claims (3)
- 磁性体の一部を長手方向に飽和漸近磁化範囲まで直流磁化して、前記磁性体の磁化区間の長手方向中央部の表面近傍の空間磁界強度を検出し、その検出値に基づいて磁性体に作用する張力を測定する張力測定方法において、前記磁性体の張力測定を開始する前に、前記磁性体にその飽和漸近磁化範囲の磁界下で使用荷重領域の上限値以上の荷重を負荷する工程を1回以上実施しておくことを特徴とする張力測定方法。
- 前記磁性体が複数の鋼線を撚り合わせた撚り線構造を有するものであることを特徴とする請求項1に記載の張力測定方法。
- 前記磁性体が鋼棒であることを特徴とする請求項1に記載の張力測定方法。
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JP2009247647A JP4961625B2 (ja) | 2009-10-28 | 2009-10-28 | 張力測定方法 |
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JP2009247647A JP4961625B2 (ja) | 2009-10-28 | 2009-10-28 | 張力測定方法 |
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JP2011095033A true JP2011095033A (ja) | 2011-05-12 |
JP4961625B2 JP4961625B2 (ja) | 2012-06-27 |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2014092390A (ja) * | 2012-11-01 | 2014-05-19 | Sumitomo Denko Steel Wire Kk | 張力測定方法 |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP6004340B2 (ja) * | 2013-01-09 | 2016-10-05 | 住友電工スチールワイヤー株式会社 | Pc鋼材の張力表示器及びその表示方法 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS587532A (ja) * | 1981-07-06 | 1983-01-17 | Yazaki Corp | 荷重検出装置 |
JPS63261124A (ja) * | 1987-04-17 | 1988-10-27 | Nitsukooshi Kk | 磁気歪効果を利用した応力検出器 |
JP2006300902A (ja) * | 2005-04-25 | 2006-11-02 | Nissan Motor Co Ltd | 応力検出方法及び装置 |
-
2009
- 2009-10-28 JP JP2009247647A patent/JP4961625B2/ja active Active
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS587532A (ja) * | 1981-07-06 | 1983-01-17 | Yazaki Corp | 荷重検出装置 |
JPS63261124A (ja) * | 1987-04-17 | 1988-10-27 | Nitsukooshi Kk | 磁気歪効果を利用した応力検出器 |
JP2006300902A (ja) * | 2005-04-25 | 2006-11-02 | Nissan Motor Co Ltd | 応力検出方法及び装置 |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2014092390A (ja) * | 2012-11-01 | 2014-05-19 | Sumitomo Denko Steel Wire Kk | 張力測定方法 |
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JP4961625B2 (ja) | 2012-06-27 |
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