JPH0372946B2 - - Google Patents
Info
- Publication number
- JPH0372946B2 JPH0372946B2 JP8309284A JP8309284A JPH0372946B2 JP H0372946 B2 JPH0372946 B2 JP H0372946B2 JP 8309284 A JP8309284 A JP 8309284A JP 8309284 A JP8309284 A JP 8309284A JP H0372946 B2 JPH0372946 B2 JP H0372946B2
- Authority
- JP
- Japan
- Prior art keywords
- comparator
- voltage
- output
- proportional
- converts
- 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.)
- Expired
Links
- 230000005415 magnetization Effects 0.000 claims description 55
- 238000001514 detection method Methods 0.000 claims description 51
- 230000005291 magnetic effect Effects 0.000 claims description 49
- 230000005284 excitation Effects 0.000 claims description 31
- 239000003302 ferromagnetic material Substances 0.000 claims description 20
- 238000009499 grossing Methods 0.000 claims description 14
- 230000008859 change Effects 0.000 claims description 11
- 230000000052 comparative effect Effects 0.000 claims description 5
- 230000001066 destructive effect Effects 0.000 claims description 4
- 230000009977 dual effect Effects 0.000 claims 1
- 239000000463 material Substances 0.000 description 27
- 238000010586 diagram Methods 0.000 description 19
- 235000019589 hardness Nutrition 0.000 description 15
- 239000000523 sample Substances 0.000 description 15
- 229910001209 Low-carbon steel Inorganic materials 0.000 description 12
- 238000005259 measurement Methods 0.000 description 11
- 239000010959 steel Substances 0.000 description 10
- 229910000831 Steel Inorganic materials 0.000 description 9
- 238000000034 method Methods 0.000 description 9
- 230000035699 permeability Effects 0.000 description 6
- 230000001419 dependent effect Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 229910000746 Structural steel Inorganic materials 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 229910000859 α-Fe Inorganic materials 0.000 description 3
- 229910000990 Ni alloy Inorganic materials 0.000 description 2
- 239000003990 capacitor Substances 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 230000005347 demagnetization Effects 0.000 description 2
- 230000004907 flux Effects 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000009864 tensile test Methods 0.000 description 2
- 229910000851 Alloy steel Inorganic materials 0.000 description 1
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 1
- 101150105594 SCM3 gene Proteins 0.000 description 1
- 101100257123 Strongylocentrotus purpuratus SM50 gene Proteins 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005669 field effect Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 239000011733 molybdenum Substances 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000003908 quality control method Methods 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 102220259718 rs34120878 Human genes 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/72—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8309284A JPS60225058A (ja) | 1984-04-24 | 1984-04-24 | 強磁性材料の機械的性質非破壊測定装置 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8309284A JPS60225058A (ja) | 1984-04-24 | 1984-04-24 | 強磁性材料の機械的性質非破壊測定装置 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60225058A JPS60225058A (ja) | 1985-11-09 |
| JPH0372946B2 true JPH0372946B2 (enrdf_load_stackoverflow) | 1991-11-20 |
Family
ID=13792534
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8309284A Granted JPS60225058A (ja) | 1984-04-24 | 1984-04-24 | 強磁性材料の機械的性質非破壊測定装置 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60225058A (enrdf_load_stackoverflow) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2559401B2 (ja) * | 1987-03-30 | 1996-12-04 | 株式会社日立製作所 | 金属材料の劣化検査方法 |
| JPS6412262A (en) * | 1987-07-06 | 1989-01-17 | Mitsubishi Motors Corp | Non-destructive inspection method and apparatus for reinforced part and heat treated part of crank shaft |
| JP4708191B2 (ja) * | 2006-01-04 | 2011-06-22 | Ｊｘ日鉱日石エネルギー株式会社 | ベローズの劣化検査方法 |
| JP5026195B2 (ja) * | 2007-08-27 | 2012-09-12 | 株式会社マエダ | 金属疲労識別装置および金属疲労識別方法 |
| JP6886674B2 (ja) * | 2019-03-06 | 2021-06-16 | サガワ産業株式会社 | 非破壊検査装置 |
-
1984
- 1984-04-24 JP JP8309284A patent/JPS60225058A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60225058A (ja) | 1985-11-09 |
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