JPS55101873A - Measuring method for magnetic characteristics of permanent magnet and device therefor - Google Patents
Measuring method for magnetic characteristics of permanent magnet and device thereforInfo
- Publication number
- JPS55101873A JPS55101873A JP1013379A JP1013379A JPS55101873A JP S55101873 A JPS55101873 A JP S55101873A JP 1013379 A JP1013379 A JP 1013379A JP 1013379 A JP1013379 A JP 1013379A JP S55101873 A JPS55101873 A JP S55101873A
- Authority
- JP
- Japan
- Prior art keywords
- magnet
- gap
- spacer
- measured
- flux density
- 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 Magnetic Variables (AREA)
Abstract
PURPOSE: To accurately measure magnetic flux density of operating point at a desired permeance factor by a method wherein a thin magnet to be measured is made to firmly contact a spaser of high permeability and unified the variations in magnetic flux density on the surface of magnet itself to uniform level.
CONSTITUTION: A magnet 11 to be measured and yoke form a magnetic circuit in which a gap 12 is formed. Between this gap 12 and the magnet 11, a spacer 9 is spaced so as to contact the magnet 11. The spacer 9 is of high permeability material and has size the same as or slightly larger than the magnet 11, with thickness smaller than the magnet 11. Thus, the magnet 11 is held by pole 7 and the spacer 9 so that both parallel faces firmly contact them. Then, specific pulse current is passed through magnetization coil 13 to cause the magnet 11 to be magnetized to saturation. Magnetic flux density within the gap 12 is measured by hole element inserted in the gap 12 and gauss meter. the magnet 11, after measurement, can be removed by rotating nut 14 and by moving the pole 7 upward.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1013379A JPS55101873A (en) | 1979-01-31 | 1979-01-31 | Measuring method for magnetic characteristics of permanent magnet and device therefor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1013379A JPS55101873A (en) | 1979-01-31 | 1979-01-31 | Measuring method for magnetic characteristics of permanent magnet and device therefor |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS55101873A true JPS55101873A (en) | 1980-08-04 |
Family
ID=11741783
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1013379A Pending JPS55101873A (en) | 1979-01-31 | 1979-01-31 | Measuring method for magnetic characteristics of permanent magnet and device therefor |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55101873A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2006170951A (en) * | 2004-12-20 | 2006-06-29 | Nissan Motor Co Ltd | Magnetic measuring instrument and its method |
-
1979
- 1979-01-31 JP JP1013379A patent/JPS55101873A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2006170951A (en) * | 2004-12-20 | 2006-06-29 | Nissan Motor Co Ltd | Magnetic measuring instrument and its method |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
Pareti et al. | Direct observations of first-order magnetization processes in single-crystal Nd 2 Fe 14 B | |
GB1525310A (en) | Method and apparatus for measuring the current flowing in a workpiece | |
JPS5743483A (en) | Magnetoelectric transducer | |
US3409853A (en) | Method and apparatus for producing duplicate magnetized articles and articles produced thereby | |
JPS55101873A (en) | Measuring method for magnetic characteristics of permanent magnet and device therefor | |
JPS5651681A (en) | Measuring instrument for magnetic characteristic | |
SU667922A1 (en) | Inductor-receiver of barkhausen magnetic noise | |
GB1144538A (en) | Improvements in or relating to devices for measuring the thickness of members of ferromagnetic material | |
US1942384A (en) | Method of and instrument for measuring surge currents | |
CN103308872B (en) | Combined magnetic field sensor and weak magnetic fields measurement device | |
JPS554722A (en) | Magnetoresistance effect head | |
JPS6483154A (en) | Current sensor | |
JPS641981A (en) | Magnetic field detector | |
JPS5555504A (en) | Method of magnetizing permanent magnet | |
US4137498A (en) | Magnetic flux standard and method for calibrating fluxmeters | |
JPS55136961A (en) | Moving coil type device | |
JPS5721883A (en) | Magnetic reluctance effect element | |
JPS57161631A (en) | Detecting device for surface stress | |
SU761965A1 (en) | Permanent magnet residual magnetisation measuring apparatus | |
JPH01248077A (en) | Method and apparatus for measuring magnetic characteristic of magnetic body | |
SU598001A1 (en) | Method of testing permanent magnets | |
SU1651251A1 (en) | Device for control of ferromagnetic articles | |
JPS56168282A (en) | Magnetic sensor device | |
JPS5669542A (en) | Magnetic field device | |
JPS5673302A (en) | Measuring method for hardened layer depth |