Yuni 20, 2021
Mataki na farko na zaɓin OPM baya kwatanta ƙayyadaddun bayanai - shine fahimtar tsawon tsawon tsarin fiber ɗin ku. Tsarukan daban-daban suna amfani da tsayin raƙuman ruwa daban-daban, kuma madaidaicin OPM sun bambanta daidai da haka. Yin amfani da madaidaicin raƙuman raƙuman ruwa 档位 yana haifar da kashewa daga 10% zuwa 20%.
Mataki na farko na zaɓin OPM baya kwatanta ƙayyadaddun bayanai - shine fahimtar tsawon tsawon tsarin fiber ɗin ku. Tsarukan daban-daban suna amfani da tsayin raƙuman ruwa daban-daban, kuma madaidaicin OPM sun bambanta daidai da haka. Yin amfani da madaidaicin raƙuman raƙuman ruwa 档位 yana haifar da kashewa daga 10% zuwa 20%.
Matsakaicin tsayin dakafi na yau da kullun a cikin tsarin sadarwa shine 1310nm da 1550nm (windows low-asarar fiber yanayin guda ɗaya) da 850nm (fiber multimode). Cibiyoyin bayanai suna ƙara amfani da tushen VCSEL 850nm don gajeriyar isar da isar da sako. Hanyoyin sadarwa na fiber shuka PV yawanci suna amfani da 1310nm. Idan tsarin DWDM (yawan raƙuman raƙuman raƙuman ruwa mai yawa) kuma suna buƙatar gwaji, ana buƙatar 1625nm wavelength 档位 - 1625nm ana kiransa 'out-of-band wavelength' kuma ana amfani dashi don gwada aikin EDFA a cikin tsarin DWDM ba tare da katse sabis ba.
Jerin PK56A yana goyan bayan saitunan tsayi bakwai masu rufe 850nm, 1310nm, 1490nm, 1550nm, 1610nm, 1625nm, da sauran manyan raƙuman raƙuman sadarwa. Wannan yana nufin ba tare da la'akari da tsawon lokacin da tsarin fiber ɗinku ke amfani da shi ba, PK56A na iya daidaita shi kai tsaye - babu ƙarin zaɓin zaɓi da ake buƙata.
Kewayon OPM yana ƙayyade yadda ƙarfin siginar haske zai iya aunawa. Ƙananan kewayon yana haɗarin lalata mai ganowa tare da haske mai ƙarfi; babban kewayo ba zai iya auna haske mai rauni ba. Amma kewayo ba koyaushe ba ne 'mafi girma mafi kyau' - na'urori masu manyan jeri yawanci sun fi girma, sun fi tsada, kuma suna iya samun ƙananan daidaito a ƙarshen ƙarancin ƙarfi idan aka kwatanta da na'urori masu dacewa da kewayo.
Ƙarfin gwaji na fili yawanci ya kai -70dBm zuwa +10dBm. -70dBm shine ƙananan ƙarancin hankali na yawancin masu karɓa; + 10dBm shine matsakaicin fitarwa na mafi yawan hanyoyin haske. Matsakaicin jerin PK56A ya ƙunshi -70dBm zuwa +10dBm, daidai da wannan kewayon daidai.
Idan sigina na gani mafi girma na buƙatar gwaji (kamar fitarwar ƙararrawa na gani, wanda zai iya kaiwa +20dBm), ana buƙatar ƙarin mai ɗaukar hoto don kare mai gano OPM. Jerin PK56A yana jigilar kaya tare da adaftan adaftar gani na gani, yana shimfida kewayon zuwa +20dBm lokacin da ake buƙata.
Babban bambanci tsakanin PK56B ta hanyar PK56E shine ikon tushen hasken ja - 10mW, 2mW, 5mW, da 20mW bi da bi. Ƙarfin tushen hasken ja yana ƙayyade nisan da zai iya ganowa da kuma yadda yake aiki da kyau a ƙarƙashin hasken yanayi.
Matsayin tushen hasken ja shine allurar jan haske mai iya gani (650nm) cikin zaren da kuma lura da inda haske ke fitowa don gane karyewa. Ƙarfin da ya fi girma yana nufin tsayin gano nisa da mafi kyawun gani ƙarƙashin haske mai ƙarfi. 2mW (PK56C) ya dace da ɗan gajeren nisa (1-2km) gwajin jumper na cikin gida, tare da mafi ƙarancin wutar lantarki, rayuwar baturi mafi tsayi, da mafi ƙarancin farashi. 5mW (PK56D) shine daidaitaccen zaɓi, wanda ya dace da yawancin gwaje-gwajen filin matsakaici. 10mW (PK56B) shine don warware matsalar haɗin fiber mai tsayi (3-5km). 20mW (PK56E) digiri ne na ƙwararru, wanda ya dace da gwajin fiber mai nisa (5km+), wanda ya rage a bayyane ko da a cikin yanayin waje mai haske.
Kar a makauniyar bin babban iko lokacin zabar. Hasken ja na 20mW na iya zama mai haske don amfanin cikin gida, yana buƙatar kariya ta ido. Kuma manyan hanyoyin hasken wuta na jan wuta suna cin ƙarin wuta, yana rage rayuwar baturi. Zaɓi ƙarfin hasken ja dangane da mafi tsayin tazarar fiber da kuke buƙatar gwadawa.
Ana iya haɗa OPM da tushen hasken ja (duk-cikin-ɗaya) ko ware - OPM mai zaman kansa da keɓaɓɓen alkalami mai haske na ja. Kowace hanya tana da ribobi da fursunoni, amma a cikin yanayin gwaji na filin, duk-in-daya yana da fa'ida bayyananne.
Na farko: ɗaukar nauyi. Duk-in-daya na'urar daya ce; ware yana nufin akalla biyu. Injiniyoyin filin yawanci suna motsawa tsakanin wuraren gwaji - daga matsugunan tashar tushe zuwa firam ɗin rarraba fiber, daga cibiyar bayanai Zone A zuwa Zone B - kuma ɗaukar ƙasa da na'ura yana nufin ƙarancin nauyi.
Na biyu: ingancin aiki. Duk-in-daya yana buƙatar babu sauyawa tsakanin OPM da yanayin alƙalamin haske ja - maɓalli ɗaya yana juyawa tsakanin gwajin wuta da yanayin haske ja. A cikin warware matsalar hanyar haɗin fiber, daidaitaccen kwarara shine: ikon gwadawa (ƙayyade idan hanyar haɗin ta al'ada ce) → canzawa zuwa yanayin haske ja (gano wurin hutu) → gyara hutu → ƙarfin gwadawa (tabbatar gyara). Tare da na'urori daban-daban, wannan kwararar yana buƙatar juyawa da baya tsakanin na'urori biyu, aƙalla rage ƙarfin aiki.
Na uku: farashi. Yayin da naúrar duk-cikin-ɗaya ta fi tsada fiye da OPM na tsaye, ƙara farashin wani alkalami mai haske na dabam, duk-in-ɗayan yawanci yana da rahusa. Kuma tare da baturi ɗaya don sarrafawa, akwai ƙarancin caja ɗaya don ɗauka.
Na hudu: daidaita bayanai. Bayanan da aka yi rikodin yayin gwajin wutar lantarki akan duk-in-daya ana iya haɗa su da sakamakon gwajin haske na ja a cikin rikodin gwajin iri ɗaya. An raba bayanan na'ura daban, suna buƙatar daidaitawa da hannu yayin bincike na gaba - tushen kuskure.
Bayan zaɓin, matakan siye da turawa suna da nasu matsala. Lokacin siyayya, kar a taɓa kwatanta farashi kaɗai - nemi rukunin demo don ingantacciyar rukunin yanar gizo. Bambance-bambance tsakanin masana'antun a cikin amfani na zahiri na iya zama mafi girma fiye da bambance-bambance a kan takaddar ƙayyadaddun bayanai: abokantaka na mu'amala, dacewa da adaftar fiber, haske mai haske na ja - babu ɗayan waɗannan da ke bayyana akan takaddun takamaiman amma duk suna shafar amfani kai tsaye.
Lokacin da kayan aiki ya zo, kar a rarraba shi kai tsaye ga ma'aikatan filin. Ka sa mai kula da injiniya ya gwada shi har tsawon mako guda, yana tabbatar da cewa yana aiki daidai da nau'ikan fiber na rukunin yanar gizon da yanayin muhalli, sannan shirya horar da ma'aikata. Horo ya kamata ya rufe: daidaitaccen hanyar gwaji (zaɓin tsayin tsayi → duban fuska na ƙarshe → gwajin wutar lantarki → ƙididdige hasara → tabbatar da haske mai haske), ayyukan rikodin bayanai, ma'aunin fassarar sakamako (abin da ya ƙunshi FASS, WARNING, da FAIL), da kayan aiki na asali.
Kafa tsarin sarrafa bayanai yana da mahimmanci daidai. Bayan kowane gwaji, bayanai ya kamata su shigar da tsarin gudanarwa na injiniya, wanda aka adana ta lambar hanyar haɗi da jerin lokaci. Ƙirƙirar rahoton lafiya na hanyar haɗin fiber kwata kwata wanda ke jera duk hanyoyin haɗin gwiwa tare da asara mara kyau, wanda aka tsara ta cikin gaggawa don tsara tsare-tsare. Wannan yana canza kulawar fiber daga gyara mai aiki zuwa faɗakarwa da wuri - hanya ɗaya tilo da gwajin bayanai ke ba da ƙima. View the PV Test Instruments Collection
Faɗa mana yanayin aikin ku da buƙatun ku, kuma za mu dace da mafita mai kyau kuma za mu ba da ƙima a cikin sa'o'i 24.
Samu Magana KyautaPK56A optical power meter, PK56B-E integrated OPM + red light source (2mW/5mW/10mW/20mW) — five series covering the complete needs from basic optical power testing to long-distance red-light fault location. Seven-wavelength coverage, multi-interface compatibility, wide-temperature design — designed for field testing and acceptance at PV plants, telecom base stations, and data centers.
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