EA902 babban kebul na haɓaka aiki ne daga layin samfurin VM, musamman an tsara shi don jerin TQ9xx na firikwensin kusanci na yanzu (kamar TQ902 da TQ912). Abu ne mai mahimmanci wajen samar da cikakkiyar sarkar ma'aunin kusancin eddy na yanzu, wanda aka yi amfani da shi don tsawaita nisan haɗin jiki tsakanin firikwensin da kwandishan (IQS900). EA902 ba kebul mai sauƙi ba ne amma ɓangaren tsarin da aka yi daidai-injiniya da daidaitacce. Halayen wutar lantarkin sa sun yi daidai da kebul na haɗakar firikwensin da na'urar sanyaya sigina don tabbatar da awoyi na aiki (kamar azanci, layi, amsa mitar) na duka sarkar auna.
Kebul na tsawo na EA902, tare da firikwensin TQ9xx da kwandishan siginar IQS900, suna yin musanya, tsarin ma'aunin da aka riga aka daidaita. An yi amfani da wannan tsarin sosai a cikin yanayin kulawa da tsarin kariya na tsaro don manyan kayan aikin juyawa irin su turbine turbines, gas turbines, hydraulic turbines, janareta, turbo-compressors, da kuma famfo, don auna shaft dangi vibration, axial matsayi, keyphasor, da sauri.
An ƙera shi don ƙaƙƙarfan mahallin masana'antu, kebul ɗin yana ba da ingantaccen siginar siginar, juriyar muhalli, da amincin injina. Yana da zaɓi na zaɓi tare da takaddun shaida na tabbatar da fashewa na ƙasa da ƙasa daban-daban, yana ba da damar amfani da shi a wurare masu haɗari. Zane na EA902 yana tabbatar da cewa ko da lokacin da aka haɗa shi da kebul na haɗin firikwensin don cimma matsakaicin tsayin tsarin duka, har yanzu yana cika ƙaƙƙarfan buƙatun aiki don tsarin aunawa, kamar waɗanda aka zayyana a cikin API 670 5th Edition.
Ƙa'idar Aiki
Ka'idar aiki na kebul na tsawaitawa na EA902 ya dogara ne akan watsa siginar mitar mitoci da ma'amala da impedance. Matsayinsa a cikin sarkar aunawa ya zarce na haɗin lantarki mai sauƙi. Don fahimtar aikin sa, dole ne a duba shi a cikin mahallin duka sarkar ma'aunin TQ9xx:
Matsakaicin Siginar Siginar Maɗaukaki:
IQS900 na'urar kwandishan siginar yana haifar da sigina mai girma (MHz kewayon) AC siginar tashin hankali, wanda aka watsa ta hanyar kebul zuwa nada a cikin TQ9xx firikwensin kai.
Canjin na'urar firikwensin na'urar firikwensin (wanda ke nuna nisa zuwa maƙasudi), bi da bi, an daidaita shi zuwa sigina mai girma kuma ana aika shi ta hanyar kebul iri ɗaya zuwa IQS900 don lalatawa.
A matsayin faɗaɗa wannan hanyar watsawa, babban aikin EA902 shine watsa waɗannan sigina masu girma tare da ƙarancin asara. Yana amfani da tsarin kebul na coaxial tare da halayen halayen halayen 70 Ω, wanda ya dace da ƙirar kebul na firikwensin da aka gina a ciki da na'urorin shigarwa / fitarwa na sigina, da nufin rage girman tunani, attenuation, da kuma karkatar da siginar yayin watsawa.
Daidaita Tsari da Daidaita Tasiri:
Dukkanin sarkar ma'auni (sensor + tsawo na USB + kwandishan sigina) an daidaita shi gaba ɗaya. Siffofin daidaitawa sun riga sun ƙididdige halayen lantarki na kebul a ƙayyadadden Tsawon Tsawon Tsari (TSL).
Siffofin lantarki na EA902 (musamman capacitance da inductance) ana sarrafa su sosai. Waɗannan sigogin da aka rarraba suna shafar mitar resonant gabaɗayan tsarin da amsa lokaci. Ƙirar na'urar kwandishan siginar IQS900 tana rama waɗannan tasirin a cikin takamaiman kewayon tsawon kebul.
Don haka, EA902 ba kebul na yau da kullun ba ne amma an daidaita shi tare da takamaiman halaye na lantarki. Sauya shi da wani tsayi daban na EA902 ko haɗa shi da na'urori masu auna firikwensin tsayin kebul daban-daban da gaske yana canza tsarin jimlar tsawon wutar lantarki. Wannan yana buƙatar zaɓar madaidaicin jimlar Tsayin Tsayin Tsari (TSL) ko daidaitawa akan kwandishan sigina (misali, 1m, 5m, 10m) don sanar da IQS900, ƙyale da'irorin sa na ciki don yin daidaitattun diyya don kula da matsayin daidaitawa da ma'aunin aiki (misali, 8 mV/μm hankali) na gabaɗayan haɗin.
Ƙirƙirar Madaidaicin Madaidaicin Maɗaukaki:
EA902 yana haɗawa da kebul na haɗakar firikwensin ta hanyar haɗin kai ƙaramar haɗin haɗin gwiwa, yana samar da ci gaba, kariya, daidaitaccen tashar watsawa ta impedance daga nada firikwensin zuwa siginar kwandishan ta gaba-karshen kewaye.
Wannan tashar tana da alhakin watsawa bidirectional: na farko, isar da makamashi mai ƙarfi daga na'urar sigina zuwa na'urar firikwensin; na biyu, maido da siginar da ke nuna sauye-sauyen rashin ƙarfi na coil daga firikwensin baya zuwa na'urar kwandishan.
Kariyar EA902 (yawanci yana kunshe da abin da aka yi masa waƙa a ƙarƙashin kwafin FEP) yana da mahimmanci don murkushe tsangwama na lantarki na waje (EMI), tabbatar da siginar ma'aunin maɗaukaki mai rauni ya kasance mara gurɓata a kan watsa mai nisa.
Muhimmancin Tsage Tsawon Tsawon:
Saboda ainihin sigogin da aka rarraba na kebul na coaxial, igiyoyi masu tsayi iri ɗaya na iya samun ɗan bambance-bambance a ainihin tsawon wutar lantarki. Don inganta aikin tsarin (musamman layin layi) da kuma tabbatar da cikakkiyar musanyawa na abubuwan da aka gyara, dole ne 'datsa wutar lantarki' na tsayin ƙira na kebul na tsawo ya zama dole.
Wannan yana nufin cewa don kebul na EA902 da aka ƙididdige shi a mita 5.0, ainihin mafi ƙarancin tsawon lantarki da ake buƙata (don sarkar ma'aunin 5m) shine mita 4.4. Wannan datsa yana tabbatar da cewa jimillar halayen lantarki na kowane kebul na EA902 mai yarda, idan aka haɗa shi da firikwensin, ya faɗi cikin kewayon da na'urar kwandishan siginar IQS900 zata iya ramawa daidai.
A taƙaice, kebul ɗin tsawaitawa na EA902 yadda ya kamata ya ƙaddamar da ƙirar lantarki na firikwensin TQ9xx zuwa kwandishan siginar IQS900 ta hanyar samar da hanyar watsawa tare da tsayayyen haɓakar halayen halayen, garkuwa mai kyau, da daidaitaccen tsayin wutar lantarki. A matsayin wani ɓangare na dukan sarkar ma'auni, ana la'akari da halayensa a cikin tsarin daidaitawa, tabbatar da cewa duk tsarin zai iya samar da ma'auni mai mahimmanci, ingantaccen siginar ma'auni ko da bayan tsawaita nisan haɗin.
III. Babban Ayyuka da Features
A matsayin mahimmin hanyar haɗin kai a cikin sarkar ma'auni mai girma, kebul na tsawo na EA902 yana da ayyuka da fasali masu zuwa:
Tsawaita Nisa da Haɗin Tsarin:
Babban Aiki: Babban aikinsa shine ƙara nisa ta jiki tsakanin firikwensin TQ9xx da kwandishan siginar IQS900. Yana ba da damar shigar da firikwensin a wuraren saka idanu masu mahimmanci a kan injina yayin sanya na'urar siginar siginar a cikin ɗakin sarrafawa ko akwatin junction wanda ya fi dacewa don kulawa kuma yana ba da yanayi mafi kyau.
Abubuwan da aka riga aka ƙirƙira: EA902 ba kebul na gaba ɗaya bane amma ɓangaren tsarin da aka daidaita don amfani tare da takamaiman na'urori masu auna firikwensin da sigina. Wannan yana tabbatar da aikin duk sarkar auna (hankali, kewayon layi, amsa mitar) ya kasance mai yarda da ƙayyadaddun bayanai (misali, API 670 5th Edition) ko da bayan tsawo.
Jimlar Tsayin Tsarin (TSL) Sassauci: Akwai shi cikin tsayin ma'auni daban-daban (misali, 3.0m, 3.5m, 4.0m, 4.5m, 5.0m, 8.0m, 8.5m, 9.0m, 9.5m). Ana iya haɗa waɗannan da sassauƙa tare da tsayi daban-daban na kebul na haɗin firikwensin TQ9xx (misali, 0.5m, 1.0m, 1.5m, 2.0m, 5.0m, 10.0m) don cimma buƙatun ƙarshe na 1-mita, 5-mita, ko 10-mita Jimlar Tsayin Tsari, saduwa da buƙatun aikace-aikacen daban-daban.
Kyakkyawan Ayyukan Wutar Lantarki da Siginar Siginar:
Tsarin Coaxial da Daidaita Haɗawa: Yana amfani da tsarin coaxial tare da haɓakar halayen halayen 70 Ω, daidai da ƙayyadaddun ƙayyadaddun ƙirar a ƙarshen firikwensin da kwandishan sigina, rage girman siginar sigina da tabbatar da amincin siginar ma'auni mai girma.
Rarrashin Asara: Babban ingancin waya mai mahimmanci da ƙirar garkuwa suna tabbatar da ƙarancin sigina akan watsa mitoci da yawa, yana tabbatar da daidaiton aunawa.
Amsa Mai Girma: Tsarinsa yana goyan bayan sarkar ma'aunin gabaɗaya don samun amsawar mitar DC zuwa 20 kHz (~ 3 dB), yana iya ɗaukar komai daidai daga jinkirin ƙaura zuwa ƙaura mai jujjuyawa mai sauri.
Daidaitawar Muhalli mai ƙarfi da Dogara:
Faɗin Yanayin Zazzabi: Kebul, masu haɗawa, da na'urorin kariya na zaɓi na iya aiki a cikin yanayin zafi daga -40°C zuwa +200°C. Iyakar zafinta don amfani a wurare masu haɗari sun dogara da zaɓaɓɓen shaidar shaidar fashewa (koma zuwa teburin takaddun shaida na Ex a cikin takaddun fasaha).
Babban Kariya da Dorewa: An lulluɓe jikin kebul da kumfa FEP (Fluorinated Ethylene Propylene). Kayan FEP yana ba da kyakkyawan juriya na sinadarai, yana tsayayya da kusan dukkanin sinadarai, yayin da kuma yana da ƙarancin ƙarfi zuwa ruwa, gas, da danshi. Bugu da ƙari, yana da sassauƙa, yana da ƙananan juzu'i, kuma yana da tauri na inji.
Zaɓuɓɓukan Kariya na Injini: Zaɓin bututun bakin karfe mai sassauƙa na zaɓi tare da kwafin FEP (lambobin zaɓin zaɓi F2, F7). Wannan haɗin yana ba da cikakkiyar kariyar da aka rufe (zuciya mai ƙarfi), mai juriya ga girgiza injina da abrasion, da kuma keɓancewa ta lantarki, musamman dacewa da lokatai da kebul na iya tuntuɓar sassa masu motsi, saman zafi mai zafi, ko mahallin sinadarai masu tsauri.
Cikakken Takaddun Shaida Mai Haɗari (Na zaɓi):
Takaddar Takaddar Fashewa: Ana samun sigar A5 (Ex) na zaɓi, samun takaddun shaida daban-daban na tabbatar da fashewar fashewar abubuwan fashewar yanayi (misali, ATEX, IECEx, cCSAus/UL, UKEX, KGS, EAC, da sauransu). A cikin aikace-aikacen da ke tabbatar da fashewa, EA902 an ba da bokan a matsayin dacewa da nau'in tabbacin fashewar na'urar kwandishan siginar ta IQS9xx (misali, Ex ec ko Ex ia).
Yarda da Tsarin: Lokacin amfani da shi a wurare masu haɗari, kowane ɓangaren sarkar ma'auni (TQ9xx, EA902, IQS900) dole ne ya sami takaddun shaida mai dacewa da fashewa (watau, duk dole ne a ba da oda tare da zaɓi na A5). EA902 wani muhimmin sashi ne na cimma daidaiton tsarin gaba ɗaya.
Haɗi mai dacewa da Shigarwa:
Masu Haɗin Kulle Kai: Dukan ƙarshen kebul ɗin suna sanye da ƙananan haɗin haɗin coaxial masu kulle kai (namiji ɗaya, mace ɗaya). Masu haɗawa suna nuna ƙirar kulle zaren; kawai a danne hannu har sai an kulle, yana tabbatar da amintacciyar hanyar haɗin gwiwa mai iya jure yanayin zafi har zuwa 200°C.
Kariyar Bayanin Haɗin Haɗi: Zaɓin IP172 mai kariyar haɗin haɗin gwiwa (lambobin zaɓi na zaɓi F5, F7) yana ba da kariya ta injiniya da muhalli don haɗin haɗin kebul na haɗin firikwensin da kebul na tsawo na EA902, yana hana danshi, ƙura, da lalacewar jiki.
Sassautun Shigarwa: Jikin kebul mai sassauƙa da kariyar bakin karfe na zaɓi na zaɓi yana ba da sauƙi da sauƙi don aiki da amintaccen tsari a cikin rikitattun shimfidar injuna.
Musanya na'ura da Kula da Tsari:
Cikakkun musanya: Dukkan igiyoyin tsawaita EA902 masu yarda suna musanya. Wannan yana nufin cewa idan kebul yana buƙatar maye gurbin, ba a buƙatar sake fasalin tsarin gaba ɗaya; kawai maye gurbin shi da EA902 na tsayi iri ɗaya da lambar zaɓi, yana sauƙaƙa sarrafa kayan gyara da kiyaye filin.
Yana Sauƙaƙa Gyara Tsarin Tsarin da Shirya matsala: Lokacin da aka yi amfani da shi tare da kwandishan siginar IQS900 wanda ke goyan bayan fitowar sigina mai sauƙi (RAW/COM) da shigarwar gwaji (TEST/COM), yana sauƙaƙe gwajin kan-site (in-situ) da kuma magance matsalar duk hanyar USB, gami da EA902.
