JPS6483154A - Current sensor - Google Patents
Current sensorInfo
- Publication number
- JPS6483154A JPS6483154A JP62238898A JP23889887A JPS6483154A JP S6483154 A JPS6483154 A JP S6483154A JP 62238898 A JP62238898 A JP 62238898A JP 23889887 A JP23889887 A JP 23889887A JP S6483154 A JPS6483154 A JP S6483154A
- Authority
- JP
- Japan
- Prior art keywords
- hall element
- sealed
- impressed
- magnetic flux
- gap
- 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
Landscapes
- Measuring Instrument Details And Bridges, And Automatic Balancing Devices (AREA)
Abstract
PURPOSE:To obtain a sensor making it possible to measure a current with high sensitivity and in a non-contact manner and having high reliability, by a method wherein ferromagnetic pieces of high permeability are disposed in close vicinity to a Hall element and a magnetic flux density is thereby condensed and impressed on the Hall element. CONSTITUTION:A conductor 11 through which a current to be measured flows is passed through an annular ferromagnetic core 21 having a gap 22. The ferromagnetic core 21 is formed of a ferrite ring, and a thin-film-type InAs Hall element 23 sealed with resin 28 is inserted into the gap 22. The Hall element 23 has a sandwich structure wherein ferrite pieces 24A and 24B of high permeability are so disposed as to hold therebetween a magnetism-sensitive member 25 formed of an InAs thin film and a shield layer 30 formed of an Al2O3 thin film, and it is sealed monolithcally with the resin 28. The Hall element 23 is fixed to the core 21 by an adhesive 26. A sensor having such a construction as the above amplified magnetically the density of a magnetic flux impressed on the Hall element 23 to be two to five times higher, for instance, and thereby enables the multiplication of an output voltage of the Hall element 23.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62238898A JP2552683B2 (en) | 1987-09-25 | 1987-09-25 | Current sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62238898A JP2552683B2 (en) | 1987-09-25 | 1987-09-25 | Current sensor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6483154A true JPS6483154A (en) | 1989-03-28 |
| JP2552683B2 JP2552683B2 (en) | 1996-11-13 |
Family
ID=17036912
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62238898A Expired - Lifetime JP2552683B2 (en) | 1987-09-25 | 1987-09-25 | Current sensor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2552683B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001337112A (en) * | 2000-05-30 | 2001-12-07 | Hioki Ee Corp | Clamp-type current sensor |
| JP2011010512A (en) * | 2009-06-29 | 2011-01-13 | Denso Corp | Step up/down converter |
| US8415948B2 (en) | 2009-02-16 | 2013-04-09 | Kabushiki Kaisha Tokai Rika Denki Seisakusho | Current sensor |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5167305B2 (en) * | 2010-04-23 | 2013-03-21 | 株式会社タムラ製作所 | Current detector |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6136569U (en) * | 1984-08-06 | 1986-03-06 | 株式会社トーキン | current detector |
-
1987
- 1987-09-25 JP JP62238898A patent/JP2552683B2/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6136569U (en) * | 1984-08-06 | 1986-03-06 | 株式会社トーキン | current detector |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001337112A (en) * | 2000-05-30 | 2001-12-07 | Hioki Ee Corp | Clamp-type current sensor |
| US8415948B2 (en) | 2009-02-16 | 2013-04-09 | Kabushiki Kaisha Tokai Rika Denki Seisakusho | Current sensor |
| JP2011010512A (en) * | 2009-06-29 | 2011-01-13 | Denso Corp | Step up/down converter |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2552683B2 (en) | 1996-11-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE68924112D1 (en) | Current sensor. | |
| US3761804A (en) | Low saturation pole piece for a magnetic thickness gauge | |
| SE8002936L (en) | METER TRANSFORMER FOR POTENTIAL-FREE Saturation of currents or voltages | |
| GB1381307A (en) | Method for the measurement of direct currents with floating input and direct time indication | |
| US3560846A (en) | Magnetic proximity detector | |
| JPS5488110A (en) | Vertical magnetization recorder-reproducer | |
| JPS6483154A (en) | Current sensor | |
| JPS5743483A (en) | Magnetoelectric transducer | |
| JPS55101044A (en) | Flaw detector | |
| JPS54158960A (en) | Position detector | |
| JPS5730943A (en) | Detecting method for defect in ferromagnetic material | |
| JPS54133367A (en) | Eccentricity inspection device of steel cored cables | |
| JPS5757204A (en) | Method of measuring thickness of film formed on surface of ferromagnetic substance | |
| JPS54127363A (en) | Portable electronic watch | |
| JPS5651681A (en) | Measuring instrument for magnetic characteristic | |
| GB1144538A (en) | Improvements in or relating to devices for measuring the thickness of members of ferromagnetic material | |
| JPS57161631A (en) | Detecting device for surface stress | |
| JPS5721883A (en) | Magnetic reluctance effect element | |
| JPS5633521A (en) | Device for measuring stress | |
| JPS59154085A (en) | Magneto-resistance effect element | |
| JPS57175235A (en) | Load detecting sensor | |
| JPS57179709A (en) | Magnetic sensor | |
| JPS53101411A (en) | Mr type magnetic head | |
| JPH0674977A (en) | Non-contact type ammeter | |
| JPS5783074A (en) | Magneto-resistive effect type thin film magnetic sensor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| S111 | Request for change of ownership or part of ownership |
Free format text: JAPANESE INTERMEDIATE CODE: R313115 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20080822 Year of fee payment: 12 |
|
| R360 | Written notification for declining of transfer of rights |
Free format text: JAPANESE INTERMEDIATE CODE: R360 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20080822 Year of fee payment: 12 |
|
| R360 | Written notification for declining of transfer of rights |
Free format text: JAPANESE INTERMEDIATE CODE: R360 |
|
| R371 | Transfer withdrawn |
Free format text: JAPANESE INTERMEDIATE CODE: R371 |
|
| S531 | Written request for registration of change of domicile |
Free format text: JAPANESE INTERMEDIATE CODE: R313531 |
|
| S111 | Request for change of ownership or part of ownership |
Free format text: JAPANESE INTERMEDIATE CODE: R313115 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20080822 Year of fee payment: 12 |
|
| R350 | Written notification of registration of transfer |
Free format text: JAPANESE INTERMEDIATE CODE: R350 |
|
| EXPY | Cancellation because of completion of term | ||
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20080822 Year of fee payment: 12 |