JP2009192478A - 磁性体検出装置 - Google Patents

磁性体検出装置 Download PDF

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Publication number
JP2009192478A
JP2009192478A JP2008036035A JP2008036035A JP2009192478A JP 2009192478 A JP2009192478 A JP 2009192478A JP 2008036035 A JP2008036035 A JP 2008036035A JP 2008036035 A JP2008036035 A JP 2008036035A JP 2009192478 A JP2009192478 A JP 2009192478A
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JP
Japan
Prior art keywords
phase difference
magnetic
magnetic body
signal
difference data
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
JP2008036035A
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English (en)
Japanese (ja)
Other versions
JP2009192478A5 (enExample
Inventor
Katsumi Takahashi
克実 高橋
Kazuhisa Koizumi
和久 小泉
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.)
Canon Inc
Original Assignee
Canon Inc
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 Canon Inc filed Critical Canon Inc
Priority to JP2008036035A priority Critical patent/JP2009192478A/ja
Priority to US12/372,349 priority patent/US8185006B2/en
Publication of JP2009192478A publication Critical patent/JP2009192478A/ja
Publication of JP2009192478A5 publication Critical patent/JP2009192478A5/ja
Pending legal-status Critical Current

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    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G15/00—Apparatus for electrographic processes using a charge pattern
    • G03G15/06—Apparatus for electrographic processes using a charge pattern for developing
    • G03G15/08—Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer
    • G03G15/0822—Arrangements for preparing, mixing, supplying or dispensing developer
    • G03G15/0848—Arrangements for testing or measuring developer properties or quality, e.g. charge, size, flowability
    • G03G15/0849—Detection or control means for the developer concentration
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G15/00—Apparatus for electrographic processes using a charge pattern
    • G03G15/06—Apparatus for electrographic processes using a charge pattern for developing
    • G03G15/08—Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer
    • G03G15/0822—Arrangements for preparing, mixing, supplying or dispensing developer
    • G03G15/0848—Arrangements for testing or measuring developer properties or quality, e.g. charge, size, flowability
    • G03G15/0849—Detection or control means for the developer concentration
    • G03G15/0853—Detection or control means for the developer concentration the concentration being measured by magnetic means
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G2215/00—Apparatus for electrophotographic processes
    • G03G2215/06—Developing structures, details
    • G03G2215/0602—Developer
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G2215/00—Apparatus for electrophotographic processes
    • G03G2215/06—Developing structures, details
    • G03G2215/0634—Developing device

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
  • Dry Development In Electrophotography (AREA)
  • Measuring Magnetic Variables (AREA)
JP2008036035A 2008-02-18 2008-02-18 磁性体検出装置 Pending JP2009192478A (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2008036035A JP2009192478A (ja) 2008-02-18 2008-02-18 磁性体検出装置
US12/372,349 US8185006B2 (en) 2008-02-18 2009-02-17 Magnetic material detecting device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2008036035A JP2009192478A (ja) 2008-02-18 2008-02-18 磁性体検出装置

Publications (2)

Publication Number Publication Date
JP2009192478A true JP2009192478A (ja) 2009-08-27
JP2009192478A5 JP2009192478A5 (enExample) 2011-04-07

Family

ID=40955242

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2008036035A Pending JP2009192478A (ja) 2008-02-18 2008-02-18 磁性体検出装置

Country Status (2)

Country Link
US (1) US8185006B2 (enExample)
JP (1) JP2009192478A (enExample)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5521935B2 (ja) * 2010-09-17 2014-06-18 富士ゼロックス株式会社 画像形成装置
CN103630602A (zh) * 2013-11-27 2014-03-12 国家电网公司 变压器类电力设备线圈材质的检测装置及方法
CN107991631B (zh) * 2017-11-20 2020-10-13 哈尔滨工业大学 一种不依赖相位的磁信号测量装置的测量方法
CN108097902A (zh) * 2017-12-04 2018-06-01 南京钢铁股份有限公司 一种在线快速检测电磁搅拌磁场强度的方法

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63235972A (ja) * 1987-03-24 1988-09-30 Tdk Corp トナ−濃度検出装置
JPH04368975A (ja) * 1991-06-18 1992-12-21 Fujitsu Ltd 現像装置
JPH0566671A (ja) * 1991-09-06 1993-03-19 Fujitsu Ltd 現像装置におけるトナー補給方法
JPH11190933A (ja) * 1997-12-25 1999-07-13 Canon Inc 画像形成装置
JP2000066502A (ja) * 1998-08-14 2000-03-03 Canon Inc 画像形成装置
JP2003057938A (ja) * 2001-08-10 2003-02-28 Ricoh Co Ltd トナー濃度検知方法
JP2006091299A (ja) * 2004-09-22 2006-04-06 Fuji Xerox Co Ltd トナー濃度制御装置および画像形成装置

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3175776B2 (ja) * 1991-01-31 2001-06-11 ミノルタ株式会社 トナー補給方法

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63235972A (ja) * 1987-03-24 1988-09-30 Tdk Corp トナ−濃度検出装置
JPH04368975A (ja) * 1991-06-18 1992-12-21 Fujitsu Ltd 現像装置
JPH0566671A (ja) * 1991-09-06 1993-03-19 Fujitsu Ltd 現像装置におけるトナー補給方法
JPH11190933A (ja) * 1997-12-25 1999-07-13 Canon Inc 画像形成装置
JP2000066502A (ja) * 1998-08-14 2000-03-03 Canon Inc 画像形成装置
JP2003057938A (ja) * 2001-08-10 2003-02-28 Ricoh Co Ltd トナー濃度検知方法
JP2006091299A (ja) * 2004-09-22 2006-04-06 Fuji Xerox Co Ltd トナー濃度制御装置および画像形成装置

Also Published As

Publication number Publication date
US20090208234A1 (en) 2009-08-20
US8185006B2 (en) 2012-05-22

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