E le ho etsa bonnete ba ho tšepahala le bophelo ba tšebeletso ea melapo ea puisano ea optical fiber, litšobotsi tsa mocheso le mekhoa ea mechine ea optical fibers le tsona ke litekanyo tse peli tsa bohlokoa haholo tsa ts'ebetso ea 'mele.
1. Litšobotsi tsa mocheso oa fiber optical
Tahlehelo ea fiber ea optical e ka hlalosoa ka "coefficient" ea "attenuation" ea fiber optical, 'me "coefficient" ea "optical" ea "optical coefficient" e amana ka ho toba le sebaka sa ts'ebetso sa tsamaiso ea puisano ea optical, ke hore, e eketseha ka lebaka la tšusumetso ea optical. mocheso, haholo-holo sebakeng se tlaase sa mocheso. Lebaka le ka sehloohong la ho eketsa coefficient ea attenuation ea fiber optical ke tahlehelo ea microbending le tahlehelo e kobehang ea fiber optical.
Tahlehelo ea microbending ea fiber ka lebaka la liphetoho tsa mocheso e bakoa ke ho atolosoa ha mocheso le ho fokotseha. Hoa tsebahala ho fisiks hore mocheso oa ho eketsa mocheso oa silicon dioxide (SiO2) o etsang fiber ea optical o monyenyane haholo, 'me ha o fokotsehe ha mocheso o fokotseha. Fiber ea optical e tlameha ho koaheloa le ho kenngoa le likarolo tse ling nakong ea ts'ebetso ea ho etsa cable. Coefficient ea katoloso ea thepa ea ho roala le likarolo tse ling e kholo. Ha mocheso o fokotseha, ho fokotseha ho tebile haholoanyane. Ka hona, ha mocheso o fetoha, coefficient ea ho atolosa ea thepa e fapane. , E tla etsa hore fiber ea optical e kobehe hanyenyane, haholo-holo sebakeng se tlaase sa mocheso.
Lekhalo pakeng tsa tahlehelo e eketsehileng ea fiber le mocheso o bontšoa setšoantšong. Ha mocheso o fokotseha, tahlehelo e eketsehileng ea fiber butle-butle e eketseha. Ha mocheso o theohela ho -55 ° C, tahlehelo e eketsehileng e eketseha haholo.
Ka hona, ha ho etsoa mokhoa oa puisano oa fiber optical, ho hlokahala hore u nahane ka liteko tse phahameng le tse tlaase tsa mocheso oa mocheso oa mochine oa optical ho hlahloba hore na tahlehelo ea optical fiber e finyella litlhoko tsa index.
2. Litšobotsi tsa mechine ea fiber optical
E le ho etsa bonnete ba hore fiber ea optical ha e robehe lits'ebetsong tse sebetsang 'me e na le ts'epo ea nako e telele ha e sebelisoa libakeng tse sa tšoaneng, ho hlokahala hore optical fiber e be le matla a itseng a mochine.
Joalokaha ho tsejoa ke bohle, thepa e etsang fiber ea hona joale ea optical ke SiO2, e lokelang ho huloa ka 125 μm filaments. Nakong ea ts'ebetso ea ho taka, matla a matla a fiber optical a ka bang 10 ~ 20kg / mm². Matla a ka fihla ho 400kg / mm². Litšobotsi tsa mochini tseo re batlang ho li bua haholo-holo li bua ka matla le bophelo ba fiber.
Matla a optical fiber mona a bolela matla a ho tsitsa. Ha fiber e le tlas'a tsitsipano ho feta kamoo e ka mamellang kateng, fiber e tla robeha.
Ha e le matla a ho senya a fiber optical, e amana le botenya ba lera la ho roala. Ha botenya ba ho roala e le 5 ~ 10μm, matla a ho senya ke 330kg / mm², 'me ha botenya ba ho roala e le 100μm, bo ka fihla ho 530kg / mm².
Lebaka la ho senyeha ha fiber ke ka lebaka la sekoli sa holim'a preform ka boeona nakong ea tlhahiso ea fiber optical. Ha tsitsipano e amoheloa, khatello e lebisitsoe ho sekoli. Ha tsitsipano e feta tekanyo e itseng, fiber ea robeha.
E le ho etsa bonnete ba hore fiber ea optical e ka ba le bophelo ba tšebeletso ea lilemo tse fetang 20, fiber ea optical e lokela ho kenngoa tekong ea ho hlahloba matla. Ke likhoele tsa optical feela tse fihlelang litlhoko tse ka sebelisoang bakeng sa cabling.
Litlhoko tsa matla a faeba linaheng tse ling li bontšitsoe tafoleng.
Khatello e lumelletsoeng ea fiber ea optic e kenyelletsa:
(1) khatello ea fiber ea optical nakong ea cabling;
(2) Khatello ea fiber ea optical e bakoang ke lintlha tse ling ha ho behoa mohala oa optical;
(3) Khatello ea fiber ea optical e bakoang ke phetoho ea mocheso oa tikoloho ea ho sebetsa.
Ho ea ka lintlha tse tsoang linaheng tse ling, ha khatello e tsitsitseng ea fiber optical e le 0.5%, bophelo ba eona bo ka fihla lilemo tse 20 ho isa ho tse 40.
