JPH0371068B2 - - Google Patents
Info
- Publication number
- JPH0371068B2 JPH0371068B2 JP59281384A JP28138484A JPH0371068B2 JP H0371068 B2 JPH0371068 B2 JP H0371068B2 JP 59281384 A JP59281384 A JP 59281384A JP 28138484 A JP28138484 A JP 28138484A JP H0371068 B2 JPH0371068 B2 JP H0371068B2
- Authority
- JP
- Japan
- Prior art keywords
- coil
- circuit
- voltage
- detection
- drive
- 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
Links
- 238000001514 detection method Methods 0.000 claims description 50
- 239000003990 capacitor Substances 0.000 claims description 13
- 239000004020 conductor Substances 0.000 description 16
- 238000010586 diagram Methods 0.000 description 12
- 230000035945 sensitivity Effects 0.000 description 7
- 230000008859 change Effects 0.000 description 4
- 230000007423 decrease Effects 0.000 description 4
- 239000000696 magnetic material Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000010363 phase shift Effects 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 229910001369 Brass Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 239000010951 brass Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000012850 discrimination method Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 229910000859 α-Fe Inorganic materials 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/72—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Geophysics And Detection Of Objects (AREA)
- Dry Development In Electrophotography (AREA)
- Measuring Magnetic Variables (AREA)
- Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59281384A JPS61149859A (ja) | 1984-12-24 | 1984-12-24 | 磁気的検知装置 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59281384A JPS61149859A (ja) | 1984-12-24 | 1984-12-24 | 磁気的検知装置 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61149859A JPS61149859A (ja) | 1986-07-08 |
| JPH0371068B2 true JPH0371068B2 (en]) | 1991-11-11 |
Family
ID=17638384
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59281384A Granted JPS61149859A (ja) | 1984-12-24 | 1984-12-24 | 磁気的検知装置 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61149859A (en]) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0633484Y2 (ja) * | 1987-05-19 | 1994-08-31 | ティーディーケイ株式会社 | トナ−濃度検出装置 |
| JPH01210979A (ja) * | 1988-02-19 | 1989-08-24 | Hitachi Metals Ltd | 現像装置 |
| JPH0789151B2 (ja) * | 1990-07-31 | 1995-09-27 | 西松建設株式会社 | Ｍ式深鉄筋探査器 |
| FR2810738A1 (fr) * | 2000-06-26 | 2001-12-28 | Jean Pierre Martin | Dispositif permettant de realiser une image electromagnetique d'un corps dit "a investiguer" par rapport a un corps de reference |
| JP2002357517A (ja) * | 2001-03-27 | 2002-12-13 | Hitachi Chem Co Ltd | Ｖｏｃ捕集用パッシブサンプラー |
| JP6069158B2 (ja) * | 2013-09-30 | 2017-02-01 | 京セラドキュメントソリューションズ株式会社 | トナーセンサー及び画像形成装置 |
-
1984
- 1984-12-24 JP JP59281384A patent/JPS61149859A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61149859A (ja) | 1986-07-08 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |