DE2847763C2 - Verfahren zur Messung der Wandstärke von Hohlschaufeln von Gasturbinen - Google Patents
Verfahren zur Messung der Wandstärke von Hohlschaufeln von GasturbinenInfo
- Publication number
- DE2847763C2 DE2847763C2 DE19782847763 DE2847763A DE2847763C2 DE 2847763 C2 DE2847763 C2 DE 2847763C2 DE 19782847763 DE19782847763 DE 19782847763 DE 2847763 A DE2847763 A DE 2847763A DE 2847763 C2 DE2847763 C2 DE 2847763C2
- Authority
- DE
- Germany
- Prior art keywords
- wall thickness
- measuring
- coil
- blade
- cavities
- 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
- 238000000034 method Methods 0.000 title claims description 26
- 230000005291 magnetic effect Effects 0.000 claims description 18
- 230000005294 ferromagnetic effect Effects 0.000 claims description 17
- 239000000523 sample Substances 0.000 claims description 13
- 239000007788 liquid Substances 0.000 claims description 12
- 239000012530 fluid Substances 0.000 claims description 11
- 230000009969 flowable effect Effects 0.000 claims 1
- 239000000463 material Substances 0.000 claims 1
- 239000006249 magnetic particle Substances 0.000 description 5
- 238000005259 measurement Methods 0.000 description 5
- 238000001816 cooling Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000004907 flux Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000002847 impedance measurement Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000000256 polyoxyethylene sorbitan monolaurate Substances 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 238000012800 visualization Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
- G01B7/02—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width or thickness
- G01B7/06—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width or thickness for measuring thickness
- G01B7/10—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width or thickness for measuring thickness using magnetic means, e.g. by measuring change of reluctance
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D21/00—Shutting-down of machines or engines, e.g. in emergency; Regulating, controlling, or safety means not otherwise provided for
- F01D21/003—Arrangements for testing or measuring
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V3/00—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation
- G01V3/08—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with magnetic or electric fields produced or modified by objects or geological structures or by detecting devices
- G01V3/10—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with magnetic or electric fields produced or modified by objects or geological structures or by detecting devices using induction coils
- G01V3/101—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with magnetic or electric fields produced or modified by objects or geological structures or by detecting devices using induction coils by measuring the impedance of the search coil; by measuring features of a resonant circuit comprising the search coil
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Remote Sensing (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Environmental & Geological Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Electromagnetism (AREA)
- Geophysics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7733679A FR2408116A1 (fr) | 1977-11-04 | 1977-11-04 | Procede de mesure de l'epaisseur des parois de pieces creuses et du volume des cavites |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DE2847763A1 DE2847763A1 (de) | 1979-05-10 |
| DE2847763C2 true DE2847763C2 (de) | 1987-01-22 |
Family
ID=9197420
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19782847763 Expired DE2847763C2 (de) | 1977-11-04 | 1978-11-03 | Verfahren zur Messung der Wandstärke von Hohlschaufeln von Gasturbinen |
Country Status (3)
| Country | Link |
|---|---|
| DE (1) | DE2847763C2 (el) |
| FR (1) | FR2408116A1 (el) |
| GB (1) | GB2009414B (el) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6012265A (ja) * | 1983-07-01 | 1985-01-22 | Nippon Kokan Kk <Nkk> | 凝固層厚さの測定方法 |
| CN112361929B (zh) * | 2020-10-30 | 2022-04-08 | 海南方能测试技术有限公司 | 一种建筑主体结构保护层厚度检验装置 |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB547714A (en) * | 1941-05-12 | 1942-09-08 | Alan Marsh Armour | Improvements in or relating to the detection of variation in wall thickness of tubes of magnetic material |
| DE1009400B (de) * | 1956-04-04 | 1957-05-29 | Karl Deutsch | Anordnung und Sonde zum Messen der Dicke nichtferromagnetischer Schichten auf ferromagnetischer Unterlage |
| NL6403501A (el) * | 1964-04-02 | 1965-10-04 |
-
1977
- 1977-11-04 FR FR7733679A patent/FR2408116A1/fr active Granted
-
1978
- 1978-11-02 GB GB7843026A patent/GB2009414B/en not_active Expired
- 1978-11-03 DE DE19782847763 patent/DE2847763C2/de not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR2408116B1 (el) | 1980-04-25 |
| GB2009414B (en) | 1982-03-10 |
| DE2847763A1 (de) | 1979-05-10 |
| GB2009414A (en) | 1979-06-13 |
| FR2408116A1 (fr) | 1979-06-01 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 8110 | Request for examination paragraph 44 | ||
| D2 | Grant after examination | ||
| 8364 | No opposition during term of opposition | ||
| 8339 | Ceased/non-payment of the annual fee |