JPH02144765U - - Google Patents
Info
- Publication number
- JPH02144765U JPH02144765U JP4969390U JP4969390U JPH02144765U JP H02144765 U JPH02144765 U JP H02144765U JP 4969390 U JP4969390 U JP 4969390U JP 4969390 U JP4969390 U JP 4969390U JP H02144765 U JPH02144765 U JP H02144765U
- Authority
- JP
- Japan
- Prior art keywords
- level
- discrimination
- frequency
- pair
- secondary coils
- 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 claims description 7
- 238000001514 detection method Methods 0.000 claims description 6
- 230000010355 oscillation Effects 0.000 claims 3
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1990049693U JPH0428059Y2 (is) | 1990-05-10 | 1990-05-10 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1990049693U JPH0428059Y2 (is) | 1990-05-10 | 1990-05-10 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH02144765U true JPH02144765U (is) | 1990-12-07 |
JPH0428059Y2 JPH0428059Y2 (is) | 1992-07-07 |
Family
ID=31567607
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1990049693U Expired JPH0428059Y2 (is) | 1990-05-10 | 1990-05-10 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0428059Y2 (is) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2012063259A (ja) * | 2010-09-16 | 2012-03-29 | Nikka Densoku Kk | 金属検出機 |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101032465B1 (ko) * | 2009-10-30 | 2011-05-03 | 한국전력공사 | 송전선 부식 탐지기 및 방법 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5087097U (is) * | 1973-12-12 | 1975-07-24 | ||
JPS52495A (en) * | 1975-06-21 | 1977-01-05 | Nippon Koinko Kk | Electronic coin examining device |
-
1990
- 1990-05-10 JP JP1990049693U patent/JPH0428059Y2/ja not_active Expired
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5087097U (is) * | 1973-12-12 | 1975-07-24 | ||
JPS52495A (en) * | 1975-06-21 | 1977-01-05 | Nippon Koinko Kk | Electronic coin examining device |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2012063259A (ja) * | 2010-09-16 | 2012-03-29 | Nikka Densoku Kk | 金属検出機 |
Also Published As
Publication number | Publication date |
---|---|
JPH0428059Y2 (is) | 1992-07-07 |
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