{"id":14166,"date":"2023-09-24T15:24:26","date_gmt":"2023-09-24T15:24:26","guid":{"rendered":"https:\/\/www.rayzeek.com\/?p=14166"},"modified":"2023-12-26T08:44:53","modified_gmt":"2023-12-26T08:44:53","slug":"what-is-transmittance","status":"publish","type":"post","link":"https:\/\/www.rayzeek.com\/cs\/glosar\/co-je-to-transmitance","title":{"rendered":"Co je propustnost"},"content":{"rendered":"

Co je propustnost<\/h2>

Propustnost je m\u011b\u0159en\u00ed mno\u017estv\u00ed sv\u011btla, kter\u00e9 je schopno proj\u00edt povrchem nebo materi\u00e1lem. Je to z\u00e1kladn\u00ed optick\u00e1 vlastnost, kter\u00e1 kvantifikuje schopnost materi\u00e1lu propou\u0161t\u011bt sv\u011btlo. <\/p>

P\u0159i interakci s povrchem nebo materi\u00e1lem m\u016f\u017ee b\u00fdt sv\u011btlo propou\u0161t\u011bno, odr\u00e1\u017eeno nebo pohlcov\u00e1no. Propustnost se konkr\u00e9tn\u011b zam\u011b\u0159uje na \u010d\u00e1st sv\u011btla, kter\u00e1 proch\u00e1z\u00ed druhou stranou povrchu. \u00dazce souvis\u00ed s pojmem odrazivost, kter\u00fd m\u011b\u0159\u00ed mno\u017estv\u00ed sv\u011btla odra\u017een\u00e9ho od povrchu.<\/p>

Propustnost se vyjad\u0159uje jako pom\u011br, kdy se porovn\u00e1v\u00e1 intenzita proch\u00e1zej\u00edc\u00edho sv\u011btla (I) s intenzitou dopadaj\u00edc\u00edho sv\u011btla (I0). Tento pom\u011br se ozna\u010duje jako T. Hodnota propustnosti p\u0159edstavuje procento dopadaj\u00edc\u00edho sv\u011btla, kter\u00e9 je schopno proj\u00edt materi\u00e1lem.<\/p>

Hled\u00e1te \u0159e\u0161en\u00ed \u00faspory energie aktivovan\u00e9 pohybem?<\/h3>

Obra\u0165te se na n\u00e1s pro kompletn\u00ed PIR senzory pohybu, produkty pro \u00fasporu energie aktivovan\u00e9 pohybem, sp\u00edna\u010de se senzorem pohybu a komer\u010dn\u00ed \u0159e\u0161en\u00ed pro detekci p\u0159\u00edtomnosti\/volnosti.<\/p>

Odeslat e-mail<\/p><\/a><\/div><\/div>

Kontaktn\u00ed formul\u00e1\u0159<\/p><\/a><\/div><\/div>

Chat Online<\/p><\/a><\/div><\/div><\/div><\/div>

Vezm\u011bme si nap\u0159\u00edklad polopr\u016fhledn\u00fd sklen\u011bn\u00fd blok. Jestli\u017ee se 30% dopadaj\u00edc\u00edho sv\u011btla odraz\u00ed od povrchu skla a 35% je pohlceno molekulami skla, zbyl\u00fdch 35% sv\u011btla projde druhou stranou kv\u00e1dru. V tomto p\u0159\u00edpad\u011b m\u00e1 sklen\u011bn\u00fd blok propustnost 35%.<\/p>

Propustnost je d\u016fle\u017eit\u00e1, proto\u017ee ovliv\u0148uje v\u00fdkon a \u00fa\u010dinnost osv\u011btlovac\u00edch syst\u00e9m\u016f. Znalost propustnosti r\u016fzn\u00fdch materi\u00e1l\u016f umo\u017e\u0148uje odborn\u00edk\u016fm na osv\u011btlen\u00ed \u010dinit informovan\u00e1 rozhodnut\u00ed o v\u00fdb\u011bru materi\u00e1l\u016f a n\u00e1vrhu osv\u011btlovac\u00edch syst\u00e9m\u016f, aby bylo dosa\u017eeno po\u017eadovan\u00e9 \u00farovn\u011b osv\u011btlen\u00ed a energetick\u00e9 \u00fa\u010dinnosti.<\/p>

Inspirujte se portfoliem pohybov\u00fdch senzor\u016f Rayzeek.<\/h3>

Nena\u0161li jste to, co jste cht\u011bli? Nebojte se. V\u017edy existuj\u00ed alternativn\u00ed zp\u016fsoby \u0159e\u0161en\u00ed va\u0161ich probl\u00e9m\u016f. Mo\u017en\u00e1 v\u00e1m pom\u016f\u017ee n\u011bkter\u00e9 z na\u0161ich portfoli\u00ed.<\/p>

Senzory pohybu PIR<\/p><\/a><\/div><\/div>

Sp\u00edna\u010de s pohybov\u00fdm senzorem<\/p><\/a><\/div><\/div>

Senzory p\u0159\u00edtomnosti<\/p><\/a><\/div><\/div>

Senzor pohybu klimatizace<\/p><\/a><\/div><\/div>

Sv\u011bteln\u00e9 p\u00e1sky s pohybov\u00fdm senzorem<\/p><\/a><\/div><\/div>

N\u00edzkonap\u011b\u0165ov\u00e9 stejnosm\u011brn\u00e9 sn\u00edma\u010de pohybu\/stm\u00edva\u010de<\/p><\/a><\/div><\/div>

Sady bezdr\u00e1tov\u00fdch sn\u00edma\u010d\u016f pohybu<\/p><\/a><\/div><\/div><\/div><\/div>

\u010casto kladen\u00e9 ot\u00e1zky<\/h2>\n\n

Co znamen\u00e1 12% p\u0159enos sv\u011btla?<\/h3><\/div><\/div>\n\n

Propustnost vizu\u00e1ln\u00edho sv\u011btla, zn\u00e1m\u00e1 tak\u00e9 jako VLT, ozna\u010duje procento viditeln\u00e9ho sv\u011btla, kter\u00e9 m\u016f\u017ee proj\u00edt \u010do\u010dkou. V p\u0159\u00edpad\u011b \u010do\u010dky s VLT 12% to znamen\u00e1, \u017ee pouze 12% sv\u011btla m\u016f\u017ee proj\u00edt, zat\u00edmco zb\u00fdvaj\u00edc\u00edch 88% je blokov\u00e1no.<\/p><\/div><\/div><\/div><\/div>\n\n

Co znamen\u00e1 13% p\u0159enos sv\u011btla?<\/h3><\/div><\/div>\n\n

Propustnost viditeln\u00e9ho sv\u011btla (VLT) je term\u00edn, se kter\u00fdm se b\u011b\u017en\u011b setk\u00e1v\u00e1me p\u0159i studiu slune\u010dn\u00edch br\u00fdl\u00ed. Ozna\u010duje mno\u017estv\u00ed sv\u011btla, kter\u00e9 projde \u010do\u010dkou a dostane se do oka. V p\u0159\u00edpad\u011b propustnosti sv\u011btla 13% to znamen\u00e1, \u017ee \u010do\u010dkou proch\u00e1z\u00ed men\u0161\u00ed procento sv\u011btla. To znamen\u00e1, \u017ee slune\u010dn\u00ed br\u00fdle maj\u00ed ni\u017e\u0161\u00ed VLT ve srovn\u00e1n\u00ed se standardn\u00edmi slune\u010dn\u00edmi br\u00fdlemi, kter\u00e9 maj\u00ed obvykle VLT 15 a\u017e 25%.<\/p><\/div><\/div><\/div><\/div>\n\n

Co je p\u0159\u00edkladem propustnosti sv\u011btla<\/h3><\/div><\/div>\n\n

P\u0159enos sv\u011btla je proces, p\u0159i kter\u00e9m sv\u011btlo proch\u00e1z\u00ed pr\u016fhledn\u00fdm nebo pr\u016fsvitn\u00fdm materi\u00e1lem. P\u0159\u00edkladem p\u0159enosu sv\u011btla je situace, kdy slune\u010dn\u00ed sv\u011btlo pronik\u00e1 oknem do m\u00edstnosti a napl\u0148uje ji sv\u011btlem.<\/p><\/div><\/div><\/div><\/div>\n\n

Jak\u00fd je \u00fa\u010del propustnosti<\/h3><\/div><\/div>\n\n

\u00da\u010delem transmitance je pomoci p\u0159i identifikaci nezn\u00e1m\u00fdch l\u00e1tek a stanoven\u00ed jejich koncentrace ve vzorku. Pomoc\u00ed sady standard\u016f a tabulky p\u0159evodu transmitance na absorbanci lze hodnoty transmitance rychle p\u0159ev\u00e9st na absorbanci v laborato\u0159i i v ter\u00e9nu.<\/p><\/div><\/div><\/div><\/div>\n\n

Co znamen\u00e1 vysok\u00e9 procento propustnosti sv\u011btla?<\/h3><\/div><\/div>\n\n

Vysok\u00e9 procento propustnosti sv\u011btla tedy znamen\u00e1, \u017ee doch\u00e1z\u00ed k minim\u00e1ln\u00ed nebo \u017e\u00e1dn\u00e9 absorpci sv\u011btla. Naopak n\u00edzk\u00e9 procento propustnosti sv\u011btla nazna\u010duje vy\u0161\u0161\u00ed mno\u017estv\u00ed absorbovan\u00e9ho sv\u011btla. V p\u0159\u00edpad\u011b, \u017ee vzorek pln\u011b absorbuje sv\u011btlo, je procento propustnosti rovno nule.<\/p><\/div><\/div><\/div><\/div>\n\n

Co je propustnost vs. pohltivost sv\u011btla<\/h3><\/div><\/div>\n\n

Transmitance se t\u00fdk\u00e1 m\u011b\u0159en\u00ed mno\u017estv\u00ed sv\u011btla, kter\u00e9 projde vzorkem, zat\u00edmco absorbance se t\u00fdk\u00e1 m\u011b\u0159en\u00ed mno\u017estv\u00ed sv\u011btla, kter\u00e9 je vzorkem pohlceno.<\/p><\/div><\/div><\/div><\/div>\n\n

Co znamen\u00e1 100 Transmitence<\/h3><\/div><\/div>\n\n

Propustnost 100 znamen\u00e1, \u017ee slou\u010denina propou\u0161t\u00ed celou frekvenci bez jak\u00e9koliv absorpce.<\/p><\/div><\/div><\/div><\/div>\n\n

Co znamen\u00e1 n\u00edzk\u00e1 propustnost<\/h3><\/div><\/div>\n\n

Ni\u017e\u0161\u00ed hodnoty transmitance % nazna\u010duj\u00ed, \u017ee slou\u010denina absorbuje \u010d\u00e1st energie, co\u017e vede ke vzniku sestupn\u00fdch hrot\u016f.<\/p><\/div><\/div><\/div><\/div>\n\n

Co je hodnota propustnosti sv\u011btla<\/h3><\/div><\/div>\n\n

Propustnost viditeln\u00e9ho sv\u011btla (VLT) ozna\u010duje procento viditeln\u00e9ho sv\u011btla, kter\u00e9 m\u016f\u017ee proj\u00edt zaskl\u00edvac\u00edm materi\u00e1lem. Je d\u016fle\u017eit\u00fdm faktorem p\u0159i optimalizaci denn\u00edho osv\u011btlen\u00ed.<\/p><\/div><\/div><\/div><\/div><\/div><\/div>","protected":false},"excerpt":{"rendered":"

Propustnost je m\u011b\u0159en\u00ed mno\u017estv\u00ed sv\u011btla, kter\u00e9 je schopno proj\u00edt povrchem nebo materi\u00e1lem. Je to z\u00e1kladn\u00ed optick\u00e1 vlastnost, kter\u00e1 kvantifikuje schopnost materi\u00e1lu propou\u0161t\u011bt sv\u011btlo.<\/p>","protected":false},"author":4,"featured_media":12861,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"article_term":"","article_term_alternate":"","article_term_def":"","article_hook":"","auto_links":"[{\"keyword\": \"reflectance\", \"idxall\": 0, \"keywordtitlesimi\": 0.9341383576393127, \"keywordslugsimi\": 0.9341383576393127, \"paratitlesimi\": 0.7622657418251038, \"paraslugsimi\": 0.7622657418251038, \"slug\": \"what-is-reflectance\", \"title\": \"What is Reflectance\", \"id\": 13992}, {\"keyword\": \"performance and efficiency of lighting systems\", \"idxall\": 0, \"keywordtitlesimi\": 0.8374252080917359, \"keywordslugsimi\": 0.8374252080917359, \"paratitlesimi\": 0.6333796083927155, \"paraslugsimi\": 0.6333796083927155, \"slug\": 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