JPH02133689U - - Google Patents
Info
- Publication number
- JPH02133689U JPH02133689U JP4256089U JP4256089U JPH02133689U JP H02133689 U JPH02133689 U JP H02133689U JP 4256089 U JP4256089 U JP 4256089U JP 4256089 U JP4256089 U JP 4256089U JP H02133689 U JPH02133689 U JP H02133689U
- Authority
- JP
- Japan
- Prior art keywords
- coil
- circuit
- output
- parallel resonant
- impedance conversion
- 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
- 238000001514 detection method Methods 0.000 claims description 5
- 239000003990 capacitor Substances 0.000 claims description 4
- 238000006243 chemical reaction Methods 0.000 claims description 4
- 230000035945 sensitivity Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 6
- 230000000052 comparative effect Effects 0.000 description 1
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)
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 true JPH02133689U (OSRAM) | 1990-11-06 | 
| JPH089653Y2 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 (OSRAM) | 
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title | 
|---|---|---|---|---|
| JP2008256664A (ja) * | 2007-04-09 | 2008-10-23 | Diesel United:Kk | 導電体濃度計測装置及び導電体濃度計測方法 | 
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title | 
|---|---|---|---|---|
| EP2034303B1 (en) * | 2006-05-30 | 2015-09-23 | Diesel United, Ltd. | Device and method for measuring concentration of magnetic material | 
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title | 
|---|---|---|---|---|
| JPS6078378A (ja) * | 1983-10-05 | 1985-05-04 | Anritsu Corp | 金属検出装置 | 
| JPS62215863A (ja) * | 1986-03-18 | 1987-09-22 | Tdk Corp | 磁気的検知装置 | 
| JPS62152280U (OSRAM) * | 1986-03-18 | 1987-09-26 | 
- 
        1989
        - 1989-04-12 JP JP1989042560U patent/JPH089653Y2/ja not_active Expired - Lifetime
 
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title | 
|---|---|---|---|---|
| JPS6078378A (ja) * | 1983-10-05 | 1985-05-04 | Anritsu Corp | 金属検出装置 | 
| JPS62215863A (ja) * | 1986-03-18 | 1987-09-22 | Tdk Corp | 磁気的検知装置 | 
| JPS62152280U (OSRAM) * | 1986-03-18 | 1987-09-26 | 
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title | 
|---|---|---|---|---|
| JP2008256664A (ja) * | 2007-04-09 | 2008-10-23 | Diesel United:Kk | 導電体濃度計測装置及び導電体濃度計測方法 | 
Also Published As
| Publication number | Publication date | 
|---|---|
| JPH089653Y2 (ja) | 1996-03-21 | 
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Legal Events
| Date | Code | Title | Description | 
|---|---|---|---|
| EXPY | Cancellation because of completion of term |