JPS5619466A - Method and device for measuring iron loss - Google Patents
Method and device for measuring iron lossInfo
- Publication number
- JPS5619466A JPS5619466A JP9503679A JP9503679A JPS5619466A JP S5619466 A JPS5619466 A JP S5619466A JP 9503679 A JP9503679 A JP 9503679A JP 9503679 A JP9503679 A JP 9503679A JP S5619466 A JPS5619466 A JP S5619466A
- Authority
- JP
- Japan
- Prior art keywords
- current
- exciting
- setter
- magnetic sensor
- primary coil
- 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
Abstract
PURPOSE: To prevent the exciting circuit, primary coil, etc., of a magnetic sensor from burning by exciting the primary side of the magnetic sensor by an AC electric power source and then by controlling primary-side exciting current so that a secondary output will be equal to a setter set voltage.
CONSTITUTION: A set voltage is set to secondary-output-voltage setter 9, and maximum electric current which is allowable for the exciting circuit of magnetic sensor 2 is also set to limit-current setter 21; and magnetic sensor 2 is arranged on the surface of a magnetic material and primary coil 3 of sensor 2 is excited by AC electric power source 6. Then, exciting electric current is led to operational amplifier 20 of exciting-current limiter 23 and compared to and subtracted from the set current of limit-current setter 21 and the result is fed back to AC electric power source 6, exercising control over the exciting current of primary coil 3 of sensor 2 so that it will never exceed the set current of limit current setter 21. Consequently, the exciting circuit, primary coil, etc., of the magnetic sensor can be prevented from burning.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9503679A JPS5619466A (en) | 1979-07-27 | 1979-07-27 | Method and device for measuring iron loss |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9503679A JPS5619466A (en) | 1979-07-27 | 1979-07-27 | Method and device for measuring iron loss |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5619466A true JPS5619466A (en) | 1981-02-24 |
JPH0226172B2 JPH0226172B2 (en) | 1990-06-07 |
Family
ID=14126847
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9503679A Granted JPS5619466A (en) | 1979-07-27 | 1979-07-27 | Method and device for measuring iron loss |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5619466A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60185157A (en) * | 1983-11-04 | 1985-09-20 | インスチツート、プリクラドノイ、フイジキ、アカデミー、ナウク、ベロルススコイ、エスエスエル | Device for measuring physical and mechanical characteristic of ferromagnetic substance piece |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5495034A (en) * | 1978-01-10 | 1979-07-27 | Gen Electric | Microwave oven |
-
1979
- 1979-07-27 JP JP9503679A patent/JPS5619466A/en active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5495034A (en) * | 1978-01-10 | 1979-07-27 | Gen Electric | Microwave oven |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60185157A (en) * | 1983-11-04 | 1985-09-20 | インスチツート、プリクラドノイ、フイジキ、アカデミー、ナウク、ベロルススコイ、エスエスエル | Device for measuring physical and mechanical characteristic of ferromagnetic substance piece |
Also Published As
Publication number | Publication date |
---|---|
JPH0226172B2 (en) | 1990-06-07 |
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