WO1996035113A1 - Zylinderförmige vorrichtung zur optischen qualitätskontrolle eines bandförmigen materials - Google Patents
Zylinderförmige vorrichtung zur optischen qualitätskontrolle eines bandförmigen materials Download PDFInfo
- Publication number
- WO1996035113A1 WO1996035113A1 PCT/DE1996/000752 DE9600752W WO9635113A1 WO 1996035113 A1 WO1996035113 A1 WO 1996035113A1 DE 9600752 W DE9600752 W DE 9600752W WO 9635113 A1 WO9635113 A1 WO 9635113A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- radiation
- roller body
- sample
- point
- receiving
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
- G01N21/89—Investigating the presence of flaws or contamination in moving material, e.g. running paper or textiles
- G01N21/8901—Optical details; Scanning details
Definitions
- the invention relates to a device for receiving radiation directed from a radiation source onto a band-shaped running sample and reflected by the sample or transmitted by the sample.
- this object is achieved by a rotatably mounted cylindrical roller body, the circumference of which contacts the band-shaped sample in a force-fitting manner and the at least one receiving point located on the circumference and permeable to the radiation and at least at one end thereof has a central outcoupling point which is permeable to the radiation, and by means located in the interior of the roller body for forwarding the radiation from the receiving point (s) to the outcoupling point.
- Such a roller body can be brought into the production path of a strip-shaped running sample without the production process being disturbed thereby.
- the receiving parts that receive the radiation to be analyzed contact the surface of the sample. The entire radiation emanating from the part of the sample surface covered by the receiving point is thus collected by the receiving point.
- the speed of the roll body surface corresponds to the speed of the running sample, so that no sliding friction occurs between the two surfaces. If the radiation is applied to the side of the strip-shaped sample facing away from the circumference of the roller body, the radiation transmitted by the sample is analyzed.
- the device according to the invention can also be designed such that it loads one at the other end of the roller body.
- has sensitive central coupling point which is transparent to the radiation emanating directly from the radiation source and means for forwarding the radiation incident through the coupling point to each receiving point.
- the device according to the invention can also be designed such that at least two of the receiving points on the roller body have different circumferential angles in relation to a cylinder coordinate system.
- the device according to the invention can be designed such that at least two of the receiving points on the roller body have different heights in relation to a cylindrical coordinate system.
- the device according to the invention can advantageously also be designed in such a way that it has means for detecting and checking an absolute rotational angle position of the roller body.
- the device according to the invention can also be designed such that it has at least one fixed induction sensor located at a certain radial distance from the axis of rotation of the roller body and a position element which rotates with the roller body and acts on the induction sensor.
- the device according to the invention can be designed in such a way that the position element is a disk with at least one opening that runs directly past the induction sensor during rotation.
- An advantageous embodiment of the device according to the invention is achieved by means of a first and a second induction sensor, the induction sensors being at different radial distances from the axis of rotation of the roller body, and by means of a position disk which is located on the Ra corresponding to the position of the first induction sensor ⁇ dius has a perforation and on the radius corresponding to the position of the second induction sensor has at least two perforations.
- the device according to the invention can also be designed such that light guides are provided in the interior of the roller body for transmitting the radiation.
- the parts of the sample surface lying above the different receiving points are exposed to approximately the same radiation intensity.
- the device according to the invention can be designed in such a way that the same number of decoupling fibers is led from each receiving point into a bundle leading to the decoupling point.
- An advantageous embodiment of the device according to the invention can also be achieved by a ground surface on the circumference of the roller body.
- the ground surface of the roller body ensures that the receiving points on the roller body surface do not cause any unevenness.
- the device according to the invention can be designed such that the roller body consists of a carbon fiber reinforced plastic.
- the device according to the invention can be designed such that it has a pressure roller that presses the band-shaped sample onto the roller body.
- Fig. 1 a schematic representation of a cross section through an embodiment of the device according to the invention.
- a roller body 1 is rotatably supported by means of two pins 2 and 3 in a bearing (not shown here).
- the roller body 1 When used as intended, the roller body 1 is integrated into the production path of a tape-shaped running sample, not shown here, in such a way that the tape-shaped sample runs over the circumference of the roller body 1. Driven by the band-shaped sample itself, the perimeter gets
- the radiation guided over the partial bundles 14 and 15 is then brought onto the surface of the strip-shaped sample via the glass bodies 16 and 17 when the corresponding receiving point 5 or 6 is currently in the area of the roller body 1 wrapped by the strip-shaped sample.
- the radiation brought onto the surface of the band-shaped sample via the receiving point 5 or 6 interacts with this surface and is then reflected back into the glass body 16 or 17.
- a further partial bundle 18 or 19 of coupling fibers is optically coupled to each glass body 16 and 17. Part of the radiation reflected from the surface of the band-shaped sample reaches the partial bundle 18 or 19 of the outcoupling fibers and is transmitted through the pin 3. through to the decoupling point 20 at the end of the pin 3.
- the radiation emerging at the decoupling point 20 is coupled via lenses 21 and 22 into a further light guide 23, which guides the radiation to an evaluation unit (not shown here).
- the wrap angle of the band-shaped sample on the roller body 1 and the distribution of the receiving points 5, 6 are coordinated with one another in such a way that only one of the receiving points 5, 6 contacts the band-shaped sample.
- a measuring device (not shown here) for determining an absolute rotational angle position of the roller body 1 can be used to determine which of the receiving points 5 and 6 is currently in the looping area.
- the radiation registered at the decoupling point 20 can thus be clearly assigned to a specific location on the sample surface.
- the receiving points 5,6 are arranged on the circumference 4 of the roller body 1 on a helical line in such a way that the receiving points are distributed uniformly over the length of the roller body 1 seen in the direction of its axis of rotation and successive receiving points on the helical line are always separated from one another by the same circumferential angle. With this arrangement of the receiving points 5, 6, measurement profiles can be determined over the length as well as over the width of the band-shaped sample.
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
- Treatment Of Fiber Materials (AREA)
- Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP96913446A EP0824686A1 (de) | 1995-05-02 | 1996-05-01 | Zylinderförmige vorrichtung zur optischen qualitätskontrolle eines bandförmigen materials |
US08/952,129 US5962847A (en) | 1995-05-02 | 1996-05-01 | Cylindrical device for optical quality control of a strip-like material |
JP8532926A JPH11505326A (ja) | 1995-05-02 | 1996-05-01 | 帯状材料の光学的品質管理のための円筒形装置 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19515373A DE19515373C2 (de) | 1995-05-02 | 1995-05-02 | Vorrichtung zur Aufnahme von von einer Strahlungsquelle auf eine bandförmige laufende Probe gerichteter und von der Probe reflektierter oder durch die Probe transmittierter Strahlung |
DE19515373.1 | 1995-05-02 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1996035113A1 true WO1996035113A1 (de) | 1996-11-07 |
Family
ID=7760433
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE1996/000752 WO1996035113A1 (de) | 1995-05-02 | 1996-05-01 | Zylinderförmige vorrichtung zur optischen qualitätskontrolle eines bandförmigen materials |
Country Status (5)
Country | Link |
---|---|
US (1) | US5962847A (de) |
EP (1) | EP0824686A1 (de) |
JP (1) | JPH11505326A (de) |
DE (1) | DE19515373C2 (de) |
WO (1) | WO1996035113A1 (de) |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1183718B (de) * | 1963-03-27 | 1964-12-17 | Licentia Gmbh | Geraet zur Untersuchung von flaechenhaften Proben auf optisch erkennbare Abweichungen |
US4038554A (en) * | 1976-03-09 | 1977-07-26 | Columbia Research Corporation | Detection of flaws in a moving web of transparent material |
EP0014894A1 (de) * | 1979-02-06 | 1980-09-03 | Erwin Sick GmbH Optik-Elektronik | Vorrichtung zum Überwachen von Fehlern in durchscheinendem Bandmaterial |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FI73319C (fi) * | 1984-12-04 | 1987-09-10 | Pertti Puumalainen | Foerfarande foer maetning av egenskaperna i en tvaerprofil hos en kontinuerlig materialbana. |
US4972074A (en) * | 1989-04-10 | 1990-11-20 | Scott M. Wright | Optical attenuator movement detection system |
DE4131835A1 (de) * | 1991-09-22 | 1993-03-25 | Optronik Gmbh Berlin Opto Elek | Fehlererkennungsgeraet |
-
1995
- 1995-05-02 DE DE19515373A patent/DE19515373C2/de not_active Expired - Fee Related
-
1996
- 1996-05-01 WO PCT/DE1996/000752 patent/WO1996035113A1/de not_active Application Discontinuation
- 1996-05-01 US US08/952,129 patent/US5962847A/en not_active Expired - Fee Related
- 1996-05-01 EP EP96913446A patent/EP0824686A1/de not_active Withdrawn
- 1996-05-01 JP JP8532926A patent/JPH11505326A/ja active Pending
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1183718B (de) * | 1963-03-27 | 1964-12-17 | Licentia Gmbh | Geraet zur Untersuchung von flaechenhaften Proben auf optisch erkennbare Abweichungen |
US4038554A (en) * | 1976-03-09 | 1977-07-26 | Columbia Research Corporation | Detection of flaws in a moving web of transparent material |
EP0014894A1 (de) * | 1979-02-06 | 1980-09-03 | Erwin Sick GmbH Optik-Elektronik | Vorrichtung zum Überwachen von Fehlern in durchscheinendem Bandmaterial |
Also Published As
Publication number | Publication date |
---|---|
DE19515373C2 (de) | 1999-02-04 |
DE19515373A1 (de) | 1996-11-14 |
US5962847A (en) | 1999-10-05 |
EP0824686A1 (de) | 1998-02-25 |
JPH11505326A (ja) | 1999-05-18 |
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