DE2912848
The invention relates to the measurement of the shade of a particle. The particle is illuminated with light of variable intensity and viewed against a background level of illumination. A measurement is made of the ratio of time for which the intensity of light from the particle exceeds the intensity...
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| creator | CHATTERLEY, SAMUEL, FLORIDA LAKE, TRANSVAAL, ZA GROBBELAAR, JACOBUS HERMANUS, ALBERTON, TRANSVAAL, ZA COLSON, RICHARD NEVILLE, KEMPTON PARK, TRANSVAAL, ZA LEVITT, CHARLIE MAURICE, VICTORIA PARK, TRANSVAAL, ZA |
| description | The invention relates to the measurement of the shade of a particle. The particle is illuminated with light of variable intensity and viewed against a background level of illumination. A measurement is made of the ratio of time for which the intensity of light from the particle exceeds the intensity of the background to obtain a measurement of the shade of the particle. |
| format | Patent |
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The particle is illuminated with light of variable intensity and viewed against a background level of illumination. A measurement is made of the ratio of time for which the intensity of light from the particle exceeds the intensity of the background to obtain a measurement of the shade of the particle.</description><edition>4</edition><language>eng</language><subject>INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES ; MEASURING ; PERFORMING OPERATIONS ; PHYSICS ; POSTAL SORTING ; SEPARATING SOLIDS FROM SOLIDS ; SORTING ; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTEDPIECE-MEAL, e.g. BY PICKING ; TESTING ; TRANSPORTING</subject><creationdate>1986</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=19860515&DB=EPODOC&CC=DE&NR=2912848C2$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25563,76418</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19860515&DB=EPODOC&CC=DE&NR=2912848C2$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>CHATTERLEY, SAMUEL, FLORIDA LAKE, TRANSVAAL, ZA</creatorcontrib><creatorcontrib>GROBBELAAR, JACOBUS HERMANUS, ALBERTON, TRANSVAAL, ZA</creatorcontrib><creatorcontrib>COLSON, RICHARD NEVILLE, KEMPTON PARK, TRANSVAAL, ZA</creatorcontrib><creatorcontrib>LEVITT, CHARLIE MAURICE, VICTORIA PARK, TRANSVAAL, ZA</creatorcontrib><title>DE2912848</title><description>The invention relates to the measurement of the shade of a particle. The particle is illuminated with light of variable intensity and viewed against a background level of illumination. A measurement is made of the ratio of time for which the intensity of light from the particle exceeds the intensity of the background to obtain a measurement of the shade of the particle.</description><subject>INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES</subject><subject>MEASURING</subject><subject>PERFORMING OPERATIONS</subject><subject>PHYSICS</subject><subject>POSTAL SORTING</subject><subject>SEPARATING SOLIDS FROM SOLIDS</subject><subject>SORTING</subject><subject>SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTEDPIECE-MEAL, e.g. BY PICKING</subject><subject>TESTING</subject><subject>TRANSPORTING</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>1986</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZOB0cTWyNDSyMLHgYWBNS8wpTuWF0twMCm6uIc4euqkF-fGpxQWJyal5qSXxcPXORsZEKAEA0EgahQ</recordid><startdate>19860515</startdate><enddate>19860515</enddate><creator>CHATTERLEY, SAMUEL, FLORIDA LAKE, TRANSVAAL, ZA</creator><creator>GROBBELAAR, JACOBUS HERMANUS, ALBERTON, TRANSVAAL, ZA</creator><creator>COLSON, RICHARD NEVILLE, KEMPTON PARK, TRANSVAAL, ZA</creator><creator>LEVITT, CHARLIE MAURICE, VICTORIA PARK, TRANSVAAL, ZA</creator><scope>EVB</scope></search><sort><creationdate>19860515</creationdate><title>DE2912848</title><author>CHATTERLEY, SAMUEL, FLORIDA LAKE, TRANSVAAL, ZA ; GROBBELAAR, JACOBUS HERMANUS, ALBERTON, TRANSVAAL, ZA ; COLSON, RICHARD NEVILLE, KEMPTON PARK, TRANSVAAL, ZA ; LEVITT, CHARLIE MAURICE, VICTORIA PARK, TRANSVAAL, ZA</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_DE2912848C23</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>1986</creationdate><topic>INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES</topic><topic>MEASURING</topic><topic>PERFORMING OPERATIONS</topic><topic>PHYSICS</topic><topic>POSTAL SORTING</topic><topic>SEPARATING SOLIDS FROM SOLIDS</topic><topic>SORTING</topic><topic>SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTEDPIECE-MEAL, e.g. BY PICKING</topic><topic>TESTING</topic><topic>TRANSPORTING</topic><toplevel>online_resources</toplevel><creatorcontrib>CHATTERLEY, SAMUEL, FLORIDA LAKE, TRANSVAAL, ZA</creatorcontrib><creatorcontrib>GROBBELAAR, JACOBUS HERMANUS, ALBERTON, TRANSVAAL, ZA</creatorcontrib><creatorcontrib>COLSON, RICHARD NEVILLE, KEMPTON PARK, TRANSVAAL, ZA</creatorcontrib><creatorcontrib>LEVITT, CHARLIE MAURICE, VICTORIA PARK, TRANSVAAL, ZA</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>CHATTERLEY, SAMUEL, FLORIDA LAKE, TRANSVAAL, ZA</au><au>GROBBELAAR, JACOBUS HERMANUS, ALBERTON, TRANSVAAL, ZA</au><au>COLSON, RICHARD NEVILLE, KEMPTON PARK, TRANSVAAL, ZA</au><au>LEVITT, CHARLIE MAURICE, VICTORIA PARK, TRANSVAAL, ZA</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>DE2912848</title><date>1986-05-15</date><risdate>1986</risdate><abstract>The invention relates to the measurement of the shade of a particle. The particle is illuminated with light of variable intensity and viewed against a background level of illumination. A measurement is made of the ratio of time for which the intensity of light from the particle exceeds the intensity of the background to obtain a measurement of the shade of the particle.</abstract><edition>4</edition><oa>free_for_read</oa></addata></record> |
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| subjects | INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES MEASURING PERFORMING OPERATIONS PHYSICS POSTAL SORTING SEPARATING SOLIDS FROM SOLIDS SORTING SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTEDPIECE-MEAL, e.g. BY PICKING TESTING TRANSPORTING |
| title | DE2912848 |
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