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
- 230000005294 ferromagnetic effect Effects 0.000 abstract 3
- 229910000673 Indium arsenide Inorganic materials 0.000 abstract 2
- 230000004907 flux Effects 0.000 abstract 2
- RPQDHPTXJYYUPQ-UHFFFAOYSA-N indium arsenide Chemical compound [In]#[As] RPQDHPTXJYYUPQ-UHFFFAOYSA-N 0.000 abstract 2
- 230000005291 magnetic effect Effects 0.000 abstract 2
- 230000035699 permeability Effects 0.000 abstract 2
- 239000011347 resin Substances 0.000 abstract 2
- 229920005989 resin Polymers 0.000 abstract 2
- 239000010409 thin film Substances 0.000 abstract 2
- 229910000859 α-Fe Inorganic materials 0.000 abstract 2
- 239000000853 adhesive Substances 0.000 abstract 1
- 230000001070 adhesive effect Effects 0.000 abstract 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 abstract 1
- 239000004020 conductor Substances 0.000 abstract 1
- 238000010276 construction Methods 0.000 abstract 1
- 229910052593 corundum Inorganic materials 0.000 abstract 1
- 230000005389 magnetism Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 230000035945 sensitivity Effects 0.000 abstract 1
- 229910001845 yogo sapphire Inorganic materials 0.000 abstract 1
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 (4)
| 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 |
| CN118091230A (en) * | 2024-04-18 | 2024-05-28 | 苏州矩阵光电有限公司 | Hall 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 (6)
| 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 |
| CN118091230A (en) * | 2024-04-18 | 2024-05-28 | 苏州矩阵光电有限公司 | Hall Current Sensor |
| CN118091230B (en) * | 2024-04-18 | 2024-08-09 | 苏州矩阵光电有限公司 | Hall Current Sensor |
| WO2025218768A1 (en) * | 2024-04-18 | 2025-10-23 | 苏州矩阵光电有限公司 | Hall current sensor |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2552683B2 (en) | 1996-11-13 |
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