FR2494427A1 - Dispositif de determination de defauts de surface de produits filiformes - Google Patents
Dispositif de determination de defauts de surface de produits filiformes Download PDFInfo
- Publication number
- FR2494427A1 FR2494427A1 FR8024287A FR8024287A FR2494427A1 FR 2494427 A1 FR2494427 A1 FR 2494427A1 FR 8024287 A FR8024287 A FR 8024287A FR 8024287 A FR8024287 A FR 8024287A FR 2494427 A1 FR2494427 A1 FR 2494427A1
- Authority
- FR
- France
- Prior art keywords
- electrodes
- product
- screen
- measuring circuit
- sensor
- 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
- 230000007547 defect Effects 0.000 claims abstract description 34
- 239000004020 conductor Substances 0.000 claims abstract description 5
- 230000005684 electric field Effects 0.000 claims description 22
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 abstract description 2
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 abstract description 2
- 229910010271 silicon carbide Inorganic materials 0.000 abstract description 2
- 229920002994 synthetic fiber Polymers 0.000 abstract description 2
- 229910052580 B4C Inorganic materials 0.000 abstract 1
- 230000007935 neutral effect Effects 0.000 abstract 1
- 238000010276 construction Methods 0.000 description 4
- 238000001514 detection method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 239000000428 dust Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000008520 organization Effects 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 230000035945 sensitivity Effects 0.000 description 3
- 230000015556 catabolic process Effects 0.000 description 2
- 238000006731 degradation reaction Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000010355 oscillation Effects 0.000 description 2
- 229910052796 boron Inorganic materials 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000000126 substance Substances 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
- G01B7/12—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring diameters
- G01B7/125—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring diameters of objects while moving
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H63/00—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package
- B65H63/06—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package responsive to presence of irregularities in running material, e.g. for severing the material at irregularities ; Control of the correct working of the yarn cleaner
- B65H63/062—Electronic slub detector
- B65H63/064—Electronic slub detector using capacitor sensing means, i.e. the defect signal is a variation of impedance
-
- 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
- G01B7/08—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width or thickness for measuring thickness using capacitive means
- G01B7/087—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width or thickness for measuring thickness using capacitive means for measuring of objects while moving
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2701/00—Handled material; Storage means
- B65H2701/30—Handled filamentary material
- B65H2701/31—Textiles threads or artificial strands of filaments
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Quality & Reliability (AREA)
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR8024287A FR2494427A1 (fr) | 1980-11-14 | 1980-11-14 | Dispositif de determination de defauts de surface de produits filiformes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR8024287A FR2494427A1 (fr) | 1980-11-14 | 1980-11-14 | Dispositif de determination de defauts de surface de produits filiformes |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2494427A1 true FR2494427A1 (fr) | 1982-05-21 |
| FR2494427B1 FR2494427B1 (enExample) | 1984-10-26 |
Family
ID=9248001
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR8024287A Granted FR2494427A1 (fr) | 1980-11-14 | 1980-11-14 | Dispositif de determination de defauts de surface de produits filiformes |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR2494427A1 (enExample) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0174017A1 (en) * | 1984-09-06 | 1986-03-12 | CSELT Centro Studi e Laboratori Telecomunicazioni S.p.A. | Improvements relating to capacitive devices for measuring the diameter of a dielectric fibre |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1564727A (en) * | 1977-04-14 | 1980-04-10 | Secretary Industry Brit | Bore measring instruments |
-
1980
- 1980-11-14 FR FR8024287A patent/FR2494427A1/fr active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1564727A (en) * | 1977-04-14 | 1980-04-10 | Secretary Industry Brit | Bore measring instruments |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0174017A1 (en) * | 1984-09-06 | 1986-03-12 | CSELT Centro Studi e Laboratori Telecomunicazioni S.p.A. | Improvements relating to capacitive devices for measuring the diameter of a dielectric fibre |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2494427B1 (enExample) | 1984-10-26 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |