JPH089653Y2 - トナー検知用センサ回路 - Google Patents

トナー検知用センサ回路

Info

Publication number
JPH089653Y2
JPH089653Y2 JP1989042560U JP4256089U JPH089653Y2 JP H089653 Y2 JPH089653 Y2 JP H089653Y2 JP 1989042560 U JP1989042560 U JP 1989042560U JP 4256089 U JP4256089 U JP 4256089U JP H089653 Y2 JPH089653 Y2 JP H089653Y2
Authority
JP
Japan
Prior art keywords
coil
toner
voltage
circuit
output
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.)
Expired - Lifetime
Application number
JP1989042560U
Other languages
English (en)
Japanese (ja)
Other versions
JPH02133689U (en]
Inventor
士郎 中川
健裕 今井
泰佐 土門
敦子 土田
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.)
TDK Corp
Original Assignee
TDK Corp
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 TDK Corp filed Critical TDK Corp
Priority to JP1989042560U priority Critical patent/JPH089653Y2/ja
Publication of JPH02133689U publication Critical patent/JPH02133689U/ja
Application granted granted Critical
Publication of JPH089653Y2 publication Critical patent/JPH089653Y2/ja
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
  • Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
  • Dry Development In Electrophotography (AREA)
JP1989042560U 1989-04-12 1989-04-12 トナー検知用センサ回路 Expired - Lifetime JPH089653Y2 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1989042560U JPH089653Y2 (ja) 1989-04-12 1989-04-12 トナー検知用センサ回路

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1989042560U JPH089653Y2 (ja) 1989-04-12 1989-04-12 トナー検知用センサ回路

Publications (2)

Publication Number Publication Date
JPH02133689U JPH02133689U (en]) 1990-11-06
JPH089653Y2 true JPH089653Y2 (ja) 1996-03-21

Family

ID=31554210

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1989042560U Expired - Lifetime JPH089653Y2 (ja) 1989-04-12 1989-04-12 トナー検知用センサ回路

Country Status (1)

Country Link
JP (1) JPH089653Y2 (en])

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007138746A1 (ja) * 2006-05-30 2007-12-06 Diesel United, Ltd. 磁性体濃度計測装置及び磁性体濃度計測方法

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5155588B2 (ja) * 2007-04-09 2013-03-06 株式会社ディーゼルユナイテッド 導電体濃度計測装置及び導電体濃度計測方法

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6078378A (ja) * 1983-10-05 1985-05-04 Anritsu Corp 金属検出装置
JPH0781989B2 (ja) * 1986-03-18 1995-09-06 ティーディーケイ株式会社 磁気的検知装置
JPH0355895Y2 (en]) * 1986-03-18 1991-12-13

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007138746A1 (ja) * 2006-05-30 2007-12-06 Diesel United, Ltd. 磁性体濃度計測装置及び磁性体濃度計測方法

Also Published As

Publication number Publication date
JPH02133689U (en]) 1990-11-06

Similar Documents

Publication Publication Date Title
EP0067974B1 (en) Torque sensor
US6335619B1 (en) Inductive proximity sensor comprising a resonant oscillatory circuit responding to changes in inductive reaction
US5287059A (en) Saturable core magnetometer with a parallel resonant circuit in which the W3 DC level changes with a change in an external magnetic field
US7298131B2 (en) Current sensors
JP3645116B2 (ja) 磁気インピーダンス効果マイクロ磁気センサ
JPH089653Y2 (ja) トナー検知用センサ回路
JP2579413Y2 (ja) 磁気的検知装置
JP2001165910A (ja) 磁気センサ
JP2008166055A (ja) 高周波発振型近接センサ
JPH10104934A (ja) 磁気的センサ
JPH0371067B2 (en])
JP2000131120A (ja) 磁性体のレベル検知装置
JP4938740B2 (ja) 磁界検出装置
JPH06289717A (ja) 磁気的検知装置
JPH0371068B2 (en])
JP2000131406A (ja) 差動トランス、磁気的センサ及び磁気的検知装置
JP2001004309A (ja) 位置センサ回路
JPH0355895Y2 (en])
JPS5896424A (ja) 近接スイツチ
JPS62215863A (ja) 磁気的検知装置
JPH05172781A (ja) 差動増幅型トナーセンサー
SU892376A1 (ru) Магнитометр
JP2001021306A (ja) 位置センサ回路
JP2001091607A (ja) 磁気的検知装置及び電子写真現像装置
JP2004037243A (ja) トナー濃度検出センサおよび画像形成装置

Legal Events

Date Code Title Description
EXPY Cancellation because of completion of term