{"id":187,"date":"2015-10-06T08:27:00","date_gmt":"2015-10-06T07:27:00","guid":{"rendered":"https:\/\/194.213.42.102\/wordpress\/?p=187"},"modified":"2016-09-13T12:50:10","modified_gmt":"2016-09-13T10:50:10","slug":"technicke-okenko-aneb-jak-jsme-rozebirali-velkoplosny-scanner","status":"publish","type":"post","link":"https:\/\/pagis.npu.cz\/wordpress\/technicke-okenko-aneb-jak-jsme-rozebirali-velkoplosny-scanner\/","title":{"rendered":"Technick\u00e9 ok\u00e9nko – aneb jak jsme rozeb\u00edrali velkoplo\u0161n\u00fd scanner"},"content":{"rendered":"
Nic netrv\u00e1 v\u011b\u010dn\u011b. Ale to na v\u011bt\u0161in\u011b v\u011bc\u00ed kolem n\u00e1s (asi) ani nepo\u017eadujeme. Nicm\u00e9n\u011b jistou dobu funk\u010dnosti p\u0159ecijen p\u0159edpokl\u00e1d\u00e1me. Zvl\u00e1\u0161t\u011b kdy\u017e jde o za\u0159\u00edzen\u00ed v cen\u011b \u00a0osobn\u00edho auta. Ani technika, jakkoli pokro\u010dil\u00e1, nevydr\u017e\u00ed\u00a0 ov\u0161em bez n\u00e1le\u017eit\u00e9 p\u00e9\u010de.<\/div>\n
V n\u00e1sleduj\u00edc\u00edm leporelu si tedy uk\u00e1\u017eeme vnit\u0159n\u00ed \u00fastroj\u00ed 42 palcov\u00e9ho scanneru Contex. Tomu na\u0161emu na gener\u00e1ln\u00edm \u0159editelstv\u00ed jsou \u010dty\u0159i roky, a proto\u017ee o n\u011bj pe\u010dujeme jako o vlastn\u00ed, podstoupil omlazovac\u00ed k\u016fru.<\/div>\n

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Na prvn\u00edm obr\u00e1zku spat\u0159ujeme tedy sejmut\u00fd svrchn\u00ed kryt, v lev\u00e9 doln\u00ed \u010d\u00e1sti blok nap\u00e1jen\u00ed. Nad n\u00edm jsou patrn\u00e9 bloky jednotliv\u00fdch kamer.<\/div>\n
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\"img_20150916_1529091\"<\/a>Scanner je pr\u016ftahov\u00fd. To znamen\u00e1 \u017ee p\u0159edloha se posouv\u00e1 p\u0159ed \u010dty\u0159mi vedle sebe um\u00edst\u011bn\u00fdmi kamerami. Ty si m\u016f\u017eeme p\u0159edstavit jako CCD \u010dip v digit\u00e1ln\u00edm fotoaopar\u00e1tu – na rozd\u00edl od n\u011bj ale maj\u00ed „jen jeden“ \u0159\u00e1dek sv\u011btlocitliv\u00fdch bun\u011bk. Kamery jsou vedle sebe \u010dty\u0159i, proto\u017ee ka\u017ed\u00e1 m\u00e1 efektivn\u00ed jen omezen\u00fd \u00fahel z\u00e1b\u011bru (tedy fakticky \u0161\u00ed\u0159ku skenovan\u00e9 p\u0159edlohy). Detail kamerov\u00e9ho bloku, za v\u00e1le\u010dkem objektivu m\u00ed\u0159\u00edc\u00edm k zrcadl\u016fm pod skenovac\u00edm sklem je vid\u011bt deska elektroniky \u010dipu a vlevo krokov\u00fd motor ovl\u00e1daj\u00edc\u00ed ost\u0159en\u00ed.<\/div>\n
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\"img_20150916_1529481\"<\/a>Lev\u00fd bok stroje po sejmut\u00ed kryt\u016f: posuv p\u0159edlohy ve scanneru zaji\u0161\u0165uj\u00ed pry\u017eov\u00e9 rolny, poh\u00e1n\u011bn\u00e9 p\u0159es ty\u010de a pastorky servomotory. Detail pohonu \u0159emeny. V lev\u00e9 \u010d\u00e1sti je vid\u011bt\u00a0 vystupuj\u00edc\u00ed patice kazety se z\u00e1\u0159ivkou.<\/div>\n
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\"img_20150916_152919\"<\/a>Prav\u00fd bok po odkrytov\u00e1n\u00ed. Zleva (n\u00e1pis PLUS) je vid\u011bt \u010dte\u010dka \u010dipov\u00e9 karty, v prav\u00e9m st\u0159edu kolejni\u010dky po vyjmut\u00e9m bloku z\u00e1\u0159ivkov\u00e9 kazety. Ta byla preventivn\u011b vym\u011bn\u011bna. Vis\u00edc\u00ed ploch\u00fd kabel je k panelu ovl\u00e1d\u00e1n\u00ed.<\/div>\n
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\"img_20150916_153013\"<\/a>Nap\u00e1jec\u00ed blok v detailu, kovov\u00e1 klec chr\u00e1n\u00ed okoln\u00ed elektroniku (a mechaniky:-) p\u0159ed vysokonap\u011b\u0165ov\u00fdm v\u00fdbojem z kondenz\u00e1tor\u016f.<\/div>\n
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\"img_20150916_153220\"<\/a>Deska elektroniky scanneru. Zde se sign\u00e1l ze v\u0161ech \u010dty\u0159 kamer zpracov\u00e1v\u00e1 do jednoho datov\u00e9ho toku, kter\u00fd je d\u00e1le posunov\u00e1n do USB rozhran\u00ed.<\/div>\n
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\"img_20150916_153305\"<\/a>Celek stroje sejmut\u00e9ho ze stojanu, jsou demontovan\u00e9 v\u0161echny kryty. Na prav\u00e9m boku \u010dte\u010dka karty s \u010dipem, kter\u00fd scanner povy\u0161uje na model plus – obecn\u011b rychlej\u0161\u00ed skenov\u00e1n\u00ed s vy\u0161\u0161\u00edm rozli\u0161en\u00edm.<\/div>\n
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\"img_20150916_160609\"<\/a>Je\u0161t\u011b jednou detail kamerov\u00e9ho bloku. Vlevo v\u00e1le\u010dek objektivu, na doln\u00ed stran\u011b krokov\u00fd motorek, kter\u00fd ot\u00e1\u010d\u00ed posuvov\u00fdm \u0161roubem posouvaj\u00edc\u00edm ohnisko v\u016f\u010di rovin\u011b sn\u00edm\u00e1n\u00ed.<\/div>\n
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\"img_20150916_160633\"<\/a>Detail krokov\u00e9ho motorku. Jde o servomotor (pro ne-model\u00e1\u0159e: motorek je schopen oto\u010dit se o p\u0159edem definovan\u00fd po\u010det ot\u00e1\u010dek).<\/div>\n
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\"img_20150916_160759\"<\/a>Vyjmut\u00fd blok s odrazov\u00fdmi zrcadly. Lampa (speci\u00e1ln\u00ed z\u00e1\u0159ivka) osv\u011bcuje p\u0159es sn\u00edmac\u00ed sklo p\u0159edlohu, aby sv\u011btlo bylo rovnom\u011brn\u011b rozpt\u00fdleno, po cel\u00e9 \u0161\u00ed\u0159ce sn\u00edm\u00e1n\u00ed jsou p\u00e1sov\u00e9 zrcadlov\u00e9 p\u00e1sy. Ty jsme pe\u010dliv\u011b vyluxovali.<\/div>\n
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\"img_20150916_160822\"<\/a>N\u00e1hradn\u00ed sklo se sn\u00edmac\u00ed \u0161t\u011brbinou. Sou\u010d\u00e1stka dorazila lepic\u00ed p\u00e1skou p\u0159ipout\u00e1na na d\u0159evot\u0159\u00edskovou lajsnu, zabalen\u00e1 v bublinkov\u00e9 folii. Jen tak, nic dal\u0161\u00edho kolem. Asi si v\u00fdrobce \u0159\u00edk\u00e1 – vid\u00edm sklo, nebudu s t\u00edm ml\u00e1tit…<\/div>\n
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\"img_20150916_161309\"<\/a>Li\u0161ta (b\u00edl\u00e1) tvo\u0159\u00edc\u00ed pozad\u00ed skenov\u00e1n\u00ed, rovn\u011b\u017e byla vym\u011bn\u011bna, proto\u017ee se provozem \u0161pin\u00ed a od\u00edr\u00e1..Sn\u00edmac\u00ed sklo m\u00e1 po stran\u00e1ch h\u00e1\u010dky, je tedy , teoreticky, u\u017eivatelsky vym\u011bniteln\u00e9…ov\u0161em kdo si na to troufne \u017ee.<\/div>\n
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\"img_20150922_122636\"<\/a>Zleva dole, mechanick\u00fd sn\u00edma\u010d na vstupu p\u0159edlohy, d\u00e1le posuvov\u00e9 rolny ( p\u0159itla\u010duj\u00ed p\u0159edlohu k pozad\u00ed, pod sebou maj\u00ed j\u00edmky na ne\u010distoty) Nad nimi vym\u011bn\u011bn\u00e9 sn\u00edmac\u00ed sklo, naho\u0159e op\u011bt dvojice p\u0159\u00edtla\u010dn\u00fdch rolni\u010dek.<\/div>\n
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\"img_20150922_122650\"<\/a>Nakonec bylo d\u00e1no v\u0161e na p\u016fvodn\u00ed m\u00edsto, stroj zp\u011bt na r\u00e1m, zapojit, zkalibrovat sn\u00edma\u010de pomoc\u00ed \u0161ablon, a m\u016f\u017eeme skenovat dal\u0161\u00edch (alespo\u0148) p\u011bt let.<\/div>\n
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\"img_20150922_122739\"<\/a><\/div>\n
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Nic netrv\u00e1 v\u011b\u010dn\u011b. Ale to na v\u011bt\u0161in\u011b v\u011bc\u00ed kolem n\u00e1s (asi) ani nepo\u017eadujeme. Nicm\u00e9n\u011b jistou dobu funk\u010dnosti p\u0159ecijen p\u0159edpokl\u00e1d\u00e1me. Zvl\u00e1\u0161t\u011b kdy\u017e jde o za\u0159\u00edzen\u00ed v cen\u011b \u00a0osobn\u00edho auta. Ani technika, jakkoli pokro\u010dil\u00e1, … Pokra\u010dovat ve \u010dten\u00ed „Technick\u00e9 ok\u00e9nko – aneb jak jsme rozeb\u00edrali velkoplo\u0161n\u00fd scanner“<\/span><\/a><\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[121],"tags":[122],"class_list":["post-187","post","type-post","status-publish","format-standard","hentry","category-technicke-okenko","tag-scanner"],"_links":{"self":[{"href":"https:\/\/pagis.npu.cz\/wordpress\/wp-json\/wp\/v2\/posts\/187","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/pagis.npu.cz\/wordpress\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/pagis.npu.cz\/wordpress\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/pagis.npu.cz\/wordpress\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/pagis.npu.cz\/wordpress\/wp-json\/wp\/v2\/comments?post=187"}],"version-history":[{"count":0,"href":"https:\/\/pagis.npu.cz\/wordpress\/wp-json\/wp\/v2\/posts\/187\/revisions"}],"wp:attachment":[{"href":"https:\/\/pagis.npu.cz\/wordpress\/wp-json\/wp\/v2\/media?parent=187"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/pagis.npu.cz\/wordpress\/wp-json\/wp\/v2\/categories?post=187"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/pagis.npu.cz\/wordpress\/wp-json\/wp\/v2\/tags?post=187"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}