JPH02101256U - - Google Patents
Info
- Publication number
- JPH02101256U JPH02101256U JP1989010310U JP1031089U JPH02101256U JP H02101256 U JPH02101256 U JP H02101256U JP 1989010310 U JP1989010310 U JP 1989010310U JP 1031089 U JP1031089 U JP 1031089U JP H02101256 U JPH02101256 U JP H02101256U
- Authority
- JP
- Japan
- Prior art keywords
- steel belt
- detection unit
- electric signals
- detects
- crack
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000001514 detection method Methods 0.000 claims description 7
- 229910000831 Steel Inorganic materials 0.000 claims description 5
- 239000010959 steel Substances 0.000 claims description 5
- 238000010586 diagram Methods 0.000 description 3
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/72—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables
- G01N27/82—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws
- G01N27/90—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws using eddy currents
- G01N27/9013—Arrangements for scanning
- G01N27/9026—Arrangements for scanning by moving the material
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/72—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables
- G01N27/82—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws
- G01N27/90—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws using eddy currents
- G01N27/9046—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws using eddy currents by analysing electrical signals
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989010310U JPH089641Y2 (ja) | 1989-01-30 | 1989-01-30 | スチールベルトのクラック検出装置 |
| US07/471,372 US5146163A (en) | 1989-01-30 | 1990-01-29 | Method and apparatus having transversely offset eddy current sensors for detecting defect in elongated metal strip joined by way of welding |
| DE69012598T DE69012598T2 (de) | 1989-01-30 | 1990-01-30 | Verfahren und Vorrichtung zur Feststellung von Fehlerstellen in langen metallischen Streifen. |
| EP90101815A EP0381145B1 (en) | 1989-01-30 | 1990-01-30 | Method and apparatus for detecting defect in elongated metal strip |
| KR2019900000970U KR970000282Y1 (ko) | 1989-01-30 | 1990-01-30 | 연신된 금속 스트립의 결함 검출장치 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989010310U JPH089641Y2 (ja) | 1989-01-30 | 1989-01-30 | スチールベルトのクラック検出装置 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02101256U true JPH02101256U (US20080293856A1-20081127-C00150.png) | 1990-08-13 |
| JPH089641Y2 JPH089641Y2 (ja) | 1996-03-21 |
Family
ID=11746672
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1989010310U Expired - Lifetime JPH089641Y2 (ja) | 1989-01-30 | 1989-01-30 | スチールベルトのクラック検出装置 |
Country Status (5)
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0523249B1 (en) * | 1991-02-04 | 1997-11-05 | Nkk Corporation | Magnetic inspecting method and device therefor |
| US5426362A (en) * | 1992-09-30 | 1995-06-20 | Ninnis; Ronald M. | Damage detection apparatus and method for a conveyor belt having magnetically permeable members |
| US5512835A (en) * | 1992-12-22 | 1996-04-30 | Hughes Aircraft Company | Electrical probe and method for measuring gaps and other discontinuities in enclosures using electrical inductance for RF shielding assessment |
| US5463201A (en) * | 1993-02-04 | 1995-10-31 | Generla Electric Company | Seam-tracking apparatus for a welding system employing an array of eddy current elements |
| US6727691B2 (en) * | 2000-06-26 | 2004-04-27 | Jentek Sensors, Inc. | High resolution inductive sensor arrays for material and defect characterization of welds |
| DE102004044335A1 (de) * | 2004-09-09 | 2006-04-06 | Robert Bosch Gmbh | Verfahren zum Überwachen von redundanten Sensorsignalen |
| JP4961816B2 (ja) * | 2006-04-18 | 2012-06-27 | 富士ゼロックス株式会社 | ベルト定着装置及びこれを用いた画像形成装置 |
| FI20085451L (fi) * | 2008-05-14 | 2009-11-15 | Metso Paper Inc | Menetelmä ja laitejärjestely metallihihnan laadun tarkistamiseksi |
| CN105675713B (zh) * | 2016-04-06 | 2018-08-07 | 山西慧达澳星科技有限公司 | 一种电梯曳引钢带无损检测装置及方法 |
| CN107719790B (zh) * | 2017-10-20 | 2019-08-20 | 超威电源有限公司 | 一种打包带偏斜度在线自动检测装置 |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52127289A (en) * | 1976-04-16 | 1977-10-25 | Bando Chemical Ind | Device for detecting longitudinal split in conveyer belt |
| JPS63138259A (ja) * | 1986-12-01 | 1988-06-10 | Nkk Corp | 磁気探査法 |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2746012A (en) * | 1952-04-17 | 1956-05-15 | Tuboscope Company | Inductive electromagnetic inspection |
| US2939963A (en) * | 1956-05-18 | 1960-06-07 | Ralph R Wegner | Photoelectric inspection apparatus |
| GB1005816A (en) * | 1960-10-14 | 1965-09-29 | Gkn Group Services Ltd | Improvements relating to methods of and apparatus for the detection of flaws |
| US3141952A (en) * | 1961-02-01 | 1964-07-21 | United Aircraft Corp | Electronic seam follower |
| US3247453A (en) * | 1961-03-09 | 1966-04-19 | Api Instr Company | Magnetic flaw detector with exciting and sensing coils axially aligned on opposite sides of the material |
| US3409779A (en) * | 1965-11-02 | 1968-11-05 | Appalachian Electronic Instr | Hole detector having logic circuitry for seam skipping |
| SE301731B (US20080293856A1-20081127-C00150.png) * | 1966-02-24 | 1968-06-17 | Essem Metotest Ab | |
| US3469182A (en) * | 1967-06-23 | 1969-09-23 | Gkn Group Services Ltd | Flaw detecting apparatus with mechanical scanning of detection means |
| PL142267B1 (en) * | 1983-12-30 | 1987-10-31 | Akad Gorniczo Hutnicza | Apparatus for magnetically testing conveyor belts |
| US4808924A (en) * | 1987-02-19 | 1989-02-28 | Atomic Energy Of Canada Limited | Circumferentially compensating eddy current probe with alternately polarized transmit coils and receiver coils |
-
1989
- 1989-01-30 JP JP1989010310U patent/JPH089641Y2/ja not_active Expired - Lifetime
-
1990
- 1990-01-29 US US07/471,372 patent/US5146163A/en not_active Expired - Lifetime
- 1990-01-30 DE DE69012598T patent/DE69012598T2/de not_active Expired - Fee Related
- 1990-01-30 EP EP90101815A patent/EP0381145B1/en not_active Expired - Lifetime
- 1990-01-30 KR KR2019900000970U patent/KR970000282Y1/ko not_active IP Right Cessation
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52127289A (en) * | 1976-04-16 | 1977-10-25 | Bando Chemical Ind | Device for detecting longitudinal split in conveyer belt |
| JPS63138259A (ja) * | 1986-12-01 | 1988-06-10 | Nkk Corp | 磁気探査法 |
Also Published As
| Publication number | Publication date |
|---|---|
| KR900014808U (ko) | 1990-08-02 |
| DE69012598T2 (de) | 1995-01-19 |
| KR970000282Y1 (ko) | 1997-01-13 |
| EP0381145A3 (en) | 1990-10-17 |
| US5146163A (en) | 1992-09-08 |
| EP0381145A2 (en) | 1990-08-08 |
| DE69012598D1 (de) | 1994-10-27 |
| JPH089641Y2 (ja) | 1996-03-21 |
| EP0381145B1 (en) | 1994-09-21 |
