JPS5244695A - Iron piece detector - Google Patents

Iron piece detector

Info

Publication number
JPS5244695A
JPS5244695A JP50119949A JP11994975A JPS5244695A JP S5244695 A JPS5244695 A JP S5244695A JP 50119949 A JP50119949 A JP 50119949A JP 11994975 A JP11994975 A JP 11994975A JP S5244695 A JPS5244695 A JP S5244695A
Authority
JP
Japan
Prior art keywords
iron piece
piece detector
change
iron
detector
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.)
Pending
Application number
JP50119949A
Other languages
Japanese (ja)
Inventor
Kosaku Tano
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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 by Individual filed Critical Individual
Priority to JP50119949A priority Critical patent/JPS5244695A/en
Publication of JPS5244695A publication Critical patent/JPS5244695A/en
Pending legal-status Critical Current

Links

Landscapes

  • Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
  • Geophysics And Detection Of Objects (AREA)

Abstract

PURPOSE: Magnetic flux from a permanent magnet passing through the iron cores of a transformer is changed by the presence of an iron piece, and this change is measured as change in current, whereby the presence or absence of the iron piece is quantitatively and highly sensitively detected.
COPYRIGHT: (C)1977,JPO&Japio
JP50119949A 1975-10-03 1975-10-03 Iron piece detector Pending JPS5244695A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP50119949A JPS5244695A (en) 1975-10-03 1975-10-03 Iron piece detector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP50119949A JPS5244695A (en) 1975-10-03 1975-10-03 Iron piece detector

Publications (1)

Publication Number Publication Date
JPS5244695A true JPS5244695A (en) 1977-04-07

Family

ID=14774159

Family Applications (1)

Application Number Title Priority Date Filing Date
JP50119949A Pending JPS5244695A (en) 1975-10-03 1975-10-03 Iron piece detector

Country Status (1)

Country Link
JP (1) JPS5244695A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4721658U (en) * 1971-03-15 1972-11-10

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4721658U (en) * 1971-03-15 1972-11-10

Similar Documents

Publication Publication Date Title
JPS5396428A (en) Transformer for earthing resistance measuring device
JPS5682443A (en) Transformation rate measuring apparatus of steel material
JPS5244695A (en) Iron piece detector
JPS5337898A (en) Permanent magnet of enclosed construction
JPS5220063A (en) Location detector
JPS5224593A (en) Material detecting device
JPS532045A (en) Coordinates read method and its device
JPS5275356A (en) Magnetic flowmeter
JPS5265469A (en) Gap detector
JPS52136578A (en) Electron beam exposure apparatus
JPS5229247A (en) Metal detecting method
JPS5224592A (en) Material detecting device
JPS5427941A (en) Method of detecting unbalance in balanced power source
JPS51126165A (en) Direct-acting type position detector
JPS549652A (en) Differential transformer type sensor
JPS5251978A (en) Method of measuring coercive force of ferromagnetic materials
JPS5222668A (en) Electro magnet brake
JPS5251970A (en) Electromagnetic flowmeter
JPS5382399A (en) Coin discriminator
JPS5588181A (en) Counter with read device
JPS51141655A (en) Detecting method of magnetic metal divided from non-magnetic product
JPS51140344A (en) Method and apparatus for automatically closing anti-smoke fire door
JPS5319896A (en) Detecting apparatus of magnetic body
JPS51140663A (en) Magnetometer
JPS5253474A (en) Minute magnetism measuring apparatus