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
Application number
JP4969390U
Other languages
English (en)
Japanese (ja)
Other versions
JPH0428059Y2 (cs
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to JP1990049693U priority Critical patent/JPH0428059Y2/ja
Publication of JPH02144765U publication Critical patent/JPH02144765U/ja
Application granted granted Critical
Publication of JPH0428059Y2 publication Critical patent/JPH0428059Y2/ja
Expired legal-status Critical Current

Links

Landscapes

  • Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
JP1990049693U 1990-05-10 1990-05-10 Expired JPH0428059Y2 (cs)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1990049693U JPH0428059Y2 (cs) 1990-05-10 1990-05-10

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1990049693U JPH0428059Y2 (cs) 1990-05-10 1990-05-10

Publications (2)

Publication Number Publication Date
JPH02144765U true JPH02144765U (cs) 1990-12-07
JPH0428059Y2 JPH0428059Y2 (cs) 1992-07-07

Family

ID=31567607

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1990049693U Expired JPH0428059Y2 (cs) 1990-05-10 1990-05-10

Country Status (1)

Country Link
JP (1) JPH0428059Y2 (cs)

Cited By (1)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101032465B1 (ko) * 2009-10-30 2011-05-03 한국전력공사 송전선 부식 탐지기 및 방법

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5087097U (cs) * 1973-12-12 1975-07-24
JPS52495A (en) * 1975-06-21 1977-01-05 Nippon Koinko Kk Electronic coin examining device

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5087097U (cs) * 1973-12-12 1975-07-24
JPS52495A (en) * 1975-06-21 1977-01-05 Nippon Koinko Kk Electronic coin examining device

Cited By (1)

* Cited by examiner, † Cited by third party
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 (cs) 1992-07-07

Similar Documents

Publication Publication Date Title
JPH02144765U (cs)
JP2019078551A (ja) キャンセル磁界発生回路、磁界検出装置および電流センサ
JPH048377Y2 (cs)
JP2000065909A (ja) 磁気センサ回路
RU2093842C1 (ru) Измерительный преобразователь переменного тока в постоянный (варианты)
JPH11337658A (ja) 金属物体の検出装置
JP2648227B2 (ja) 直流電流検出器
JPH04183112A (ja) 非接触型近接スイッチ
JP2674012B2 (ja) 金属検出器
JPH02120006U (cs)
JPS604140Y2 (ja) 金層検知器
JPS5847182U (ja) フラツクス・ゲ−ト磁束計
JPH0334691Y2 (cs)
JPH0351721Y2 (cs)
JPS6315822Y2 (cs)
JPH01135305U (cs)
GB2025071A (en) Apparatus for the Comparison of Two Direct-current Signals
SU885904A1 (ru) Устройство дл сравнени двух переменных напр жений
JPH0222091U (cs)
JPH0792179A (ja) 回転検出装置
JPH0184004U (cs)
JPS6349826U (cs)
JPS589018A (ja) 変位速度検出装置
JPH0394488A (ja) 結合素子
JPH01180717U (cs)