JPS5960278A - 自己診断式金属検出器 - Google Patents
自己診断式金属検出器Info
- Publication number
- JPS5960278A JPS5960278A JP57169646A JP16964682A JPS5960278A JP S5960278 A JPS5960278 A JP S5960278A JP 57169646 A JP57169646 A JP 57169646A JP 16964682 A JP16964682 A JP 16964682A JP S5960278 A JPS5960278 A JP S5960278A
- Authority
- JP
- Japan
- Prior art keywords
- phase
- contact piece
- amplitude
- induced voltage
- circuit
- 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
- 239000002184 metal Substances 0.000 title claims abstract description 22
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 22
- 238000007689 inspection Methods 0.000 claims abstract description 19
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 claims abstract description 7
- 230000001360 synchronised effect Effects 0.000 claims description 19
- 238000004092 self-diagnosis Methods 0.000 claims description 4
- 230000005672 electromagnetic field Effects 0.000 claims 1
- 238000001514 detection method Methods 0.000 abstract description 7
- 230000035945 sensitivity Effects 0.000 abstract description 6
- 238000000034 method Methods 0.000 abstract description 2
- 150000002500 ions Chemical class 0.000 abstract 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 16
- 238000010586 diagram Methods 0.000 description 11
- 229910052742 iron Inorganic materials 0.000 description 8
- 229910001220 stainless steel Inorganic materials 0.000 description 7
- 239000010935 stainless steel Substances 0.000 description 7
- 239000013078 crystal Substances 0.000 description 3
- 230000002950 deficient Effects 0.000 description 3
- 230000006698 induction Effects 0.000 description 3
- 238000012790 confirmation Methods 0.000 description 2
- 238000003745 diagnosis Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 241001385733 Aesculus indica Species 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000000881 depressing effect Effects 0.000 description 1
- -1 ferrous metals Chemical class 0.000 description 1
- 238000004898 kneading Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V13/00—Manufacturing, calibrating, cleaning, or repairing instruments or devices covered by groups G01V1/00 – G01V11/00
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- General Physics & Mathematics (AREA)
- Geophysics (AREA)
- Geophysics And Detection Of Objects (AREA)
- Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP57169646A JPS5960278A (ja) | 1982-09-30 | 1982-09-30 | 自己診断式金属検出器 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP57169646A JPS5960278A (ja) | 1982-09-30 | 1982-09-30 | 自己診断式金属検出器 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5960278A true JPS5960278A (ja) | 1984-04-06 |
JPS6335946B2 JPS6335946B2 (enrdf_load_stackoverflow) | 1988-07-18 |
Family
ID=15890334
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP57169646A Granted JPS5960278A (ja) | 1982-09-30 | 1982-09-30 | 自己診断式金属検出器 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5960278A (enrdf_load_stackoverflow) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2011237287A (ja) * | 2010-05-11 | 2011-11-24 | Eminet Co Ltd | 金属検出装置 |
JP2019002709A (ja) * | 2017-06-12 | 2019-01-10 | 日新電子工業株式会社 | 金属検出装置及び診断方法 |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0248848U (enrdf_load_stackoverflow) * | 1988-09-29 | 1990-04-04 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5047684A (enrdf_load_stackoverflow) * | 1973-08-14 | 1975-04-28 | ||
JPS5526427U (enrdf_load_stackoverflow) * | 1978-08-10 | 1980-02-20 |
-
1982
- 1982-09-30 JP JP57169646A patent/JPS5960278A/ja active Granted
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5047684A (enrdf_load_stackoverflow) * | 1973-08-14 | 1975-04-28 | ||
JPS5526427U (enrdf_load_stackoverflow) * | 1978-08-10 | 1980-02-20 |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2011237287A (ja) * | 2010-05-11 | 2011-11-24 | Eminet Co Ltd | 金属検出装置 |
JP2019002709A (ja) * | 2017-06-12 | 2019-01-10 | 日新電子工業株式会社 | 金属検出装置及び診断方法 |
Also Published As
Publication number | Publication date |
---|---|
JPS6335946B2 (enrdf_load_stackoverflow) | 1988-07-18 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US5001424A (en) | Apparatus for measuring magnetic particles suspended in a fluid based on fluctuations in an induced voltage | |
US3192474A (en) | Method and apparatus for determining the quality of a weld or solder joint by measurement of the dynamic resistance of the joint | |
US2455792A (en) | Limiter circuit for electric testing apparatus | |
KR840001338A (ko) | 통전되는 회전부재에서 이상검출을 위한 방법 및 그 장치 | |
US2005011A (en) | Magnetic testing apparatus and method | |
JPS5979810A (ja) | 2本の別々なダクト内の2つの流れの間の差の測定装置 | |
JPS5960278A (ja) | 自己診断式金属検出器 | |
JPS5960274A (ja) | 金属検出装置 | |
US2894203A (en) | Multiple frequency eddy current testing apparatus | |
US3721896A (en) | Improved phase sensitive eddy current defect detector utilizing frequency doubling of detected signal prior to phase detection | |
JPS642904B2 (enrdf_load_stackoverflow) | ||
JPH0125347Y2 (enrdf_load_stackoverflow) | ||
JPS637634B2 (enrdf_load_stackoverflow) | ||
JPH09292471A (ja) | 金属検出装置 | |
US3576489A (en) | Phase detection and comparison apparatus for determining the phase derivative with respect to frequency of an eddy current test signal | |
JPS6332157B2 (enrdf_load_stackoverflow) | ||
US2045258A (en) | Electrical analysis | |
JPH112624A (ja) | 異品検出装置 | |
JPS626163A (ja) | 回転磁界型渦流探傷方法 | |
US2045257A (en) | Electrical analysis | |
JPH01269068A (ja) | 交流き電回路の異周波電源混触検出法 | |
US2454776A (en) | Indicating circuit for alternating current bridges | |
SU1056041A1 (ru) | Вихретоковый дефектоскоп | |
SU953543A1 (ru) | Вихретоковый дефектоскоп | |
SU864106A1 (ru) | Способ магнитошумовой структуроскопии изделий из ферромагнитных материалов |