OUT-OF-PATTERN COATING DEFECT DETECTION SYSTEM
Out-of-Pattern Coating Defect Detection System A defect detection system (10) of this invention applies one or more orthogonally-aligned light beams (22 and 24) to a coated fiber (32) such that the light passes through the entire width of both the fiber (32) and its applied coating (31). As the ligh...
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| creator | SMITHGALL, DAVID H LOVELACE, CHARLES R FRAZEE, RALPH E. JR |
| description | Out-of-Pattern Coating Defect Detection System A defect detection system (10) of this invention applies one or more orthogonally-aligned light beams (22 and 24) to a coated fiber (32) such that the light passes through the entire width of both the fiber (32) and its applied coating (31). As the light passes through a fiber (32) and coating (31) of good quality, a particular pattern, with a predictable intensity level, is produced by the forward scattered portions of the light beams directed through the coated fiber (32). In accordance with the present invention, the intensity of the forward scattered patterns is continuously monitored by a series of photodiodes (44, 45, 46 and 47) each located adjacent to the expected forward scatter pattern. Various defects in the coating cause the path of the light passing through the coated fiber (32) to be altered, thereby directing some of the forward scattered light outside of the normally expected pattern and into the detection area of the photodiodes (44, 45, 46 and 47). Such distortion to the forward scatter patterns causes the light intensity level measured at the photodiodes (44, 45, 46 and 47) to increase. Therefore, by continuously monitoring the light intensity level adjacent to the forward scatter patterns for an increase of light relative to the light intensity expected, the present invention provides reliable and accurate means for detecting, temporally short defects, such as air bubbles, which may be present within the coating (31) of a fiber (32). |
| format | Patent |
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JR</creatorcontrib><description>Out-of-Pattern Coating Defect Detection System A defect detection system (10) of this invention applies one or more orthogonally-aligned light beams (22 and 24) to a coated fiber (32) such that the light passes through the entire width of both the fiber (32) and its applied coating (31). As the light passes through a fiber (32) and coating (31) of good quality, a particular pattern, with a predictable intensity level, is produced by the forward scattered portions of the light beams directed through the coated fiber (32). In accordance with the present invention, the intensity of the forward scattered patterns is continuously monitored by a series of photodiodes (44, 45, 46 and 47) each located adjacent to the expected forward scatter pattern. Various defects in the coating cause the path of the light passing through the coated fiber (32) to be altered, thereby directing some of the forward scattered light outside of the normally expected pattern and into the detection area of the photodiodes (44, 45, 46 and 47). Such distortion to the forward scatter patterns causes the light intensity level measured at the photodiodes (44, 45, 46 and 47) to increase. Therefore, by continuously monitoring the light intensity level adjacent to the forward scatter patterns for an increase of light relative to the light intensity expected, the present invention provides reliable and accurate means for detecting, temporally short defects, such as air bubbles, which may be present within the coating (31) of a fiber (32).</description><edition>5</edition><language>eng ; fre</language><subject>CHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUSENAMELS ; CHEMISTRY ; COLORIMETRY ; GLASS ; INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES ; JOINING GLASS TO GLASS OR OTHER MATERIALS ; MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT,POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRA-RED,VISIBLE OR ULTRA-VIOLET LIGHT ; MEASURING ; METALLURGY ; MINERAL OR SLAG WOOL ; OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS ; OPTICS ; PHYSICS ; RADIATION PYROMETRY ; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS,MINERALS OR SLAGS ; SURFACE TREATMENT OF GLASS ; TESTING ; TESTING STATIC OR DYNAMIC BALANCE OF MACHINES ORSTRUCTURES ; TESTING STRUCTURES OR APPARATUS NOT OTHERWISE PROVIDED FOR</subject><creationdate>1993</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19930814&DB=EPODOC&CC=CA&NR=2088081A1$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25563,76318</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19930814&DB=EPODOC&CC=CA&NR=2088081A1$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>SMITHGALL, DAVID H</creatorcontrib><creatorcontrib>LOVELACE, CHARLES R</creatorcontrib><creatorcontrib>FRAZEE, RALPH E. JR</creatorcontrib><title>OUT-OF-PATTERN COATING DEFECT DETECTION SYSTEM</title><description>Out-of-Pattern Coating Defect Detection System A defect detection system (10) of this invention applies one or more orthogonally-aligned light beams (22 and 24) to a coated fiber (32) such that the light passes through the entire width of both the fiber (32) and its applied coating (31). As the light passes through a fiber (32) and coating (31) of good quality, a particular pattern, with a predictable intensity level, is produced by the forward scattered portions of the light beams directed through the coated fiber (32). In accordance with the present invention, the intensity of the forward scattered patterns is continuously monitored by a series of photodiodes (44, 45, 46 and 47) each located adjacent to the expected forward scatter pattern. Various defects in the coating cause the path of the light passing through the coated fiber (32) to be altered, thereby directing some of the forward scattered light outside of the normally expected pattern and into the detection area of the photodiodes (44, 45, 46 and 47). Such distortion to the forward scatter patterns causes the light intensity level measured at the photodiodes (44, 45, 46 and 47) to increase. Therefore, by continuously monitoring the light intensity level adjacent to the forward scatter patterns for an increase of light relative to the light intensity expected, the present invention provides reliable and accurate means for detecting, temporally short defects, such as air bubbles, which may be present within the coating (31) of a fiber (32).</description><subject>CHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUSENAMELS</subject><subject>CHEMISTRY</subject><subject>COLORIMETRY</subject><subject>GLASS</subject><subject>INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES</subject><subject>JOINING GLASS TO GLASS OR OTHER MATERIALS</subject><subject>MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT,POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRA-RED,VISIBLE OR ULTRA-VIOLET LIGHT</subject><subject>MEASURING</subject><subject>METALLURGY</subject><subject>MINERAL OR SLAG WOOL</subject><subject>OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS</subject><subject>OPTICS</subject><subject>PHYSICS</subject><subject>RADIATION PYROMETRY</subject><subject>SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS,MINERALS OR SLAGS</subject><subject>SURFACE TREATMENT OF GLASS</subject><subject>TESTING</subject><subject>TESTING STATIC OR DYNAMIC BALANCE OF MACHINES ORSTRUCTURES</subject><subject>TESTING STRUCTURES OR APPARATUS NOT OTHERWISE PROVIDED FOR</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>1993</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZNDzDw3R9XfTDXAMCXEN8lNw9ncM8fRzV3BxdXN1DgFSIUDK099PITgyOMTVl4eBNS0xpziVF0pzMyi4uYY4e-imFuTHpxYXJCan5qWWxDs7GhlYWBhYGDoaGhOhBACeSiVK</recordid><startdate>19930814</startdate><enddate>19930814</enddate><creator>SMITHGALL, DAVID H</creator><creator>LOVELACE, CHARLES R</creator><creator>FRAZEE, RALPH E. JR</creator><scope>EVB</scope></search><sort><creationdate>19930814</creationdate><title>OUT-OF-PATTERN COATING DEFECT DETECTION SYSTEM</title><author>SMITHGALL, DAVID H ; LOVELACE, CHARLES R ; FRAZEE, RALPH E. JR</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_CA2088081A13</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng ; fre</language><creationdate>1993</creationdate><topic>CHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUSENAMELS</topic><topic>CHEMISTRY</topic><topic>COLORIMETRY</topic><topic>GLASS</topic><topic>INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES</topic><topic>JOINING GLASS TO GLASS OR OTHER MATERIALS</topic><topic>MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT,POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRA-RED,VISIBLE OR ULTRA-VIOLET LIGHT</topic><topic>MEASURING</topic><topic>METALLURGY</topic><topic>MINERAL OR SLAG WOOL</topic><topic>OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS</topic><topic>OPTICS</topic><topic>PHYSICS</topic><topic>RADIATION PYROMETRY</topic><topic>SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS,MINERALS OR SLAGS</topic><topic>SURFACE TREATMENT OF GLASS</topic><topic>TESTING</topic><topic>TESTING STATIC OR DYNAMIC BALANCE OF MACHINES ORSTRUCTURES</topic><topic>TESTING STRUCTURES OR APPARATUS NOT OTHERWISE PROVIDED FOR</topic><toplevel>online_resources</toplevel><creatorcontrib>SMITHGALL, DAVID H</creatorcontrib><creatorcontrib>LOVELACE, CHARLES R</creatorcontrib><creatorcontrib>FRAZEE, RALPH E. JR</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>SMITHGALL, DAVID H</au><au>LOVELACE, CHARLES R</au><au>FRAZEE, RALPH E. JR</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>OUT-OF-PATTERN COATING DEFECT DETECTION SYSTEM</title><date>1993-08-14</date><risdate>1993</risdate><abstract>Out-of-Pattern Coating Defect Detection System A defect detection system (10) of this invention applies one or more orthogonally-aligned light beams (22 and 24) to a coated fiber (32) such that the light passes through the entire width of both the fiber (32) and its applied coating (31). As the light passes through a fiber (32) and coating (31) of good quality, a particular pattern, with a predictable intensity level, is produced by the forward scattered portions of the light beams directed through the coated fiber (32). In accordance with the present invention, the intensity of the forward scattered patterns is continuously monitored by a series of photodiodes (44, 45, 46 and 47) each located adjacent to the expected forward scatter pattern. Various defects in the coating cause the path of the light passing through the coated fiber (32) to be altered, thereby directing some of the forward scattered light outside of the normally expected pattern and into the detection area of the photodiodes (44, 45, 46 and 47). Such distortion to the forward scatter patterns causes the light intensity level measured at the photodiodes (44, 45, 46 and 47) to increase. Therefore, by continuously monitoring the light intensity level adjacent to the forward scatter patterns for an increase of light relative to the light intensity expected, the present invention provides reliable and accurate means for detecting, temporally short defects, such as air bubbles, which may be present within the coating (31) of a fiber (32).</abstract><edition>5</edition><oa>free_for_read</oa></addata></record> |
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| language | eng ; fre |
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| subjects | CHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUSENAMELS CHEMISTRY COLORIMETRY GLASS INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES JOINING GLASS TO GLASS OR OTHER MATERIALS MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT,POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRA-RED,VISIBLE OR ULTRA-VIOLET LIGHT MEASURING METALLURGY MINERAL OR SLAG WOOL OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS OPTICS PHYSICS RADIATION PYROMETRY SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS,MINERALS OR SLAGS SURFACE TREATMENT OF GLASS TESTING TESTING STATIC OR DYNAMIC BALANCE OF MACHINES ORSTRUCTURES TESTING STRUCTURES OR APPARATUS NOT OTHERWISE PROVIDED FOR |
| title | OUT-OF-PATTERN COATING DEFECT DETECTION SYSTEM |
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