JPS5687864A - Method and device for measuring electric current - Google Patents
Method and device for measuring electric currentInfo
- Publication number
- JPS5687864A JPS5687864A JP16479779A JP16479779A JPS5687864A JP S5687864 A JPS5687864 A JP S5687864A JP 16479779 A JP16479779 A JP 16479779A JP 16479779 A JP16479779 A JP 16479779A JP S5687864 A JPS5687864 A JP S5687864A
- Authority
- JP
- Japan
- Prior art keywords
- conductor
- core
- measure
- coil
- wall surface
- 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.)
- Pending
Links
Landscapes
- Measuring Instrument Details And Bridges, And Automatic Balancing Devices (AREA)
Abstract
PURPOSE: To make it possible to measure current value of a conductor indirectly with safety and facility and also to measure distance between a wall surface and the conductor at the same time, by using a detecting unit which is so prepared that a detecting coil of a particular length is wound on an open end, particularly, on a core.
CONSTITUTION: A detecting unit is prepared by winding a detecting coil 3 on a straight-line section of a platelike or barlike core 5 so that it can have an effective coil length L being 6 times as large as a diameter of a conductor 1 embedded in a wall surface 4. Now, by arranging the core 5 so that it can form a right angle with the conductor 1 through, which current passes measuring induced voltage by the flux with a voltmeter V connected to the detecting coil 3, preparing in advance calibration curves for an induced voltage and a distance (h) between the conductor 1 and the core 5, and tracing on the calibration curves the voltage measured by the voltmeter V, it is possible to measure indirectly with safety and facility the value of current passing through the conductor 1, and at the same time, it is also possible to measure a distance between the wall surface 4 and the conductor 1. Further, even if position of the core 5 is to be shifted a little due to a specifically set effective coil length L of the detecting coil 3, it is still possible to conduct an accurate measurement.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16479779A JPS5687864A (en) | 1979-12-20 | 1979-12-20 | Method and device for measuring electric current |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16479779A JPS5687864A (en) | 1979-12-20 | 1979-12-20 | Method and device for measuring electric current |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5687864A true JPS5687864A (en) | 1981-07-16 |
Family
ID=15800111
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16479779A Pending JPS5687864A (en) | 1979-12-20 | 1979-12-20 | Method and device for measuring electric current |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5687864A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8051912B2 (en) | 2004-07-27 | 2011-11-08 | Baker Hughes Incorporated | Armored flat cable signalling and instrument power acquisition |
| JP2019215329A (en) * | 2018-05-09 | 2019-12-19 | フルークコーポレイションＦｌｕｋｅ Ｃｏｒｐｏｒａｔｉｏｎ | Position dependent non-contact voltage and current measurement |
-
1979
- 1979-12-20 JP JP16479779A patent/JPS5687864A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8051912B2 (en) | 2004-07-27 | 2011-11-08 | Baker Hughes Incorporated | Armored flat cable signalling and instrument power acquisition |
| JP2019215329A (en) * | 2018-05-09 | 2019-12-19 | フルークコーポレイションＦｌｕｋｅ Ｃｏｒｐｏｒａｔｉｏｎ | Position dependent non-contact voltage and current measurement |
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