Menene fitarwa na 4-20mA?
1.) Gabatarwa
4-20mA (milliamp) wani nau'in lantarki ne da aka saba amfani dashi don watsa siginar analog a cikin sarrafa tsarin masana'antu da tsarin sarrafa kansa. Yana da madauki na yau da kullun mai ƙarfin ƙarfin kai, ƙaramin ƙarfin lantarki wanda zai iya watsa sigina a kan dogon nesa da ta mahalli masu hayaniya ta lantarki ba tare da ƙasƙantar da siginar ba.
Matsakaicin 4-20mA yana wakiltar tazarar milliamps 16, tare da milliamps huɗu suna wakiltar mafi ƙarancin ko ƙimar sifili da 20 milliamps suna wakiltar matsakaicin ko cikakken ƙimar siginar. Haƙiƙanin ƙimar siginar analog ɗin da ake watsa ana ɓoye shi azaman matsayi a cikin wannan kewayon, tare da matakin halin yanzu yana daidai da ƙimar siginar.
Ana amfani da fitowar 4-20mA sau da yawa don watsa siginar analog daga na'urori masu auna firikwensin da sauran na'urori na filin, irin su binciken zafin jiki da masu juyawa, don sarrafawa da saka idanu tsarin. Hakanan ana amfani dashi don watsa sigina tsakanin sassa daban-daban a cikin tsarin sarrafawa, kamar daga mai sarrafa dabaru (PLC) zuwa mai kunna bawul.
A cikin sarrafa kansa na masana'antu, fitowar 4-20mA sigina ce da aka saba amfani da ita don watsa bayanai daga firikwensin da sauran na'urori. Fitowar 4-20mA, wanda kuma aka sani da madauki na yanzu, hanya ce mai ƙarfi kuma abin dogaro don watsa bayanai akan nesa mai nisa, har ma a cikin mahalli masu hayaniya. Wannan shafin yanar gizon zai bincika abubuwan da ake buƙata na fitarwa na 4-20mA, gami da yadda yake aiki da fa'ida da rashin amfanin amfani da shi a cikin tsarin sarrafa kansa na masana'antu.
Fitowar 4-20mA siginar analog ce da ake watsa ta amfani da madaurin halin yanzu na 4-20 milliamps (mA). Ana amfani da shi sau da yawa don watsa bayanai game da auna yawan jiki, kamar matsa lamba, zafin jiki, ko yawan kwarara. Misali, firikwensin zafin jiki na iya watsa siginar 4-20mA daidai da zafin da yake aunawa.
Ɗaya daga cikin manyan fa'idodin yin amfani da fitarwa na 4-20mA shine cewa shine daidaitattun duniya a cikin sarrafa kansa na masana'antu. Yana nufin cewa na'urori masu yawa, kamar na'urori masu auna firikwensin, masu sarrafawa, da masu kunnawa, an tsara su don dacewa da siginar 4-20mA. Yana sa haɗa sabbin na'urori cikin tsarin da ake da su cikin sauƙi, muddin suna goyan bayan fitowar 4-20mA.
2.) Ta yaya 4-20mA fitarwa aiki?
4-20mA ana watsa shi ta amfani da madauki na yanzu, wanda ya ƙunshi mai watsawa da mai karɓa. Mai watsawa, yawanci firikwensin ko wata na'ura mai auna adadin jiki, yana haifar da siginar 4-20mA kuma ya aika zuwa mai karɓa. Mai karɓa, yawanci mai sarrafawa ko wata na'ura da ke da alhakin sarrafa siginar, yana karɓar siginar 4-20mA kuma yana fassara bayanin da ya ƙunshi.
Don siginar 4-20mA da za a watsa daidai, yana da mahimmanci don kula da halin yanzu ta hanyar madauki. Ana samunsa ta hanyar amfani da resistor mai iyakancewa a cikin mai watsawa, wanda ke iyakance adadin abin da zai iya gudana ta cikin kewaye. An zaɓi juriya mai iyaka na yanzu don ba da damar kewayon 4-20mA da ake so ya gudana ta madauki.
Ɗaya daga cikin mahimman fa'idodin yin amfani da madauki na yanzu shine yana ba da damar siginar 4-20mA don watsawa a cikin dogon nesa ba tare da wahala daga lalata sigina ba. Domin ana watsa siginar a matsayin halin yanzu maimakon ƙarfin lantarki, wanda ba shi da sauƙi ga tsangwama da hayaniya. Bugu da ƙari, madaukai na yanzu na iya watsa siginar 4-20mA akan nau'i-nau'i masu juyayi ko igiyoyin coaxial, rage haɗarin lalata sigina.
3.) Amfanin amfani da fitarwa na 4-20mA
Akwai fa'idodi da yawa don amfani da fitarwa na 4-20mA a cikin tsarin sarrafa kansa na masana'antu. Wasu mahimman fa'idodin sun haɗa da:
watsa sigina mai nisa:Fitowar 4-20mA na iya watsa sigina ta nisa mai nisa ba tare da wahala ta lalata sigina ba. Yana da kyau a yi amfani da shi a aikace-aikace inda mai watsawa da mai karɓa ke da nisa, kamar a cikin manyan masana'antu ko na'urorin mai na teku.
A: Babban rigakafin amo:Hannun madaukai na yanzu suna da matukar juriya ga hayaniya da tsangwama, wanda ya sa su dace don amfani a cikin mahalli masu hayaniya. Yana da mahimmanci a cikin saitunan masana'antu, inda sautin lantarki daga injiniyoyi da sauran kayan aiki na iya haifar da matsala tare da watsa sigina.
B: Daidaituwa da na'urori da yawa:Kamar yadda fitarwa na 4-20mA shine ma'auni na duniya a cikin sarrafa kansa na masana'antu, yana dacewa da na'urori da yawa. Yana sa haɗa sabbin na'urori cikin tsarin da ake da su cikin sauƙi, muddin suna goyan bayan fitowar 4-20mA.
4.) Rashin amfani da 4-20mA fitarwa
Duk da yake fitowar 4-20mA yana da fa'idodi da yawa, akwai kuma wasu kurakurai don amfani da shi a cikin tsarin sarrafa kansa na masana'antu. Waɗannan sun haɗa da:
A: Ƙimar iyaka:Fitowar 4-20mA siginar analog ce da ake watsawa ta amfani da ci gaba da ƙimar ƙima. Koyaya, ƙudurin siginar yana iyakance ta kewayon 4-20mA, wanda shine kawai 16mA. Wannan ƙila bai isa ba don aikace-aikacen da ke buƙatar babban matakin daidaito ko azanci.
B: Dogara ga wutar lantarki:Don siginar 4-20mA da za a watsa daidai, yana da mahimmanci don kula da halin yanzu ta hanyar madauki. Wannan yana buƙatar wutar lantarki, wanda zai iya zama ƙarin farashi da rikitarwa a cikin tsarin. Bugu da kari, wutar lantarki na iya kasawa ko ta lalace, wanda zai iya shafar watsa siginar 4-20mA.
5.) Kammalawa
4-20mA fitarwa shine nau'in sigina da aka yi amfani da shi sosai a cikin tsarin sarrafa kansa na masana'antu. Ana watsa shi ta amfani da madaidaicin halin yanzu na 4-20mA kuma ana karɓa ta amfani da madauki na yanzu wanda ya ƙunshi mai watsawa da mai karɓa. Fitowar 4-20mA yana da fa'idodi da yawa, gami da watsa siginar nesa mai nisa, babban rigakafin amo, da dacewa tare da kewayon na'urori. Duk da haka, yana da wasu kurakurai, gami da ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙarfi da dogaro da wutar lantarki. Gabaɗaya, fitowar 4-20mA ingantaccen tsari ne kuma mai ƙarfi don watsa bayanai a cikin tsarin sarrafa kansa na masana'antu.
Menene Bambanci Tsakanin 4-20ma, 0-10v, 0-5v, da I2C Fitar?
4-20mA, 0-10V, da 0-5V duk siginonin analog ne da aka saba amfani da su a sarrafa kansa na masana'antu da sauran aikace-aikace. Ana amfani da su don watsa bayanai game da auna yawan jiki, kamar matsa lamba, zafin jiki, ko yawan kwarara.
Babban bambanci tsakanin waɗannan nau'ikan sigina shine kewayon ƙimar da za su iya watsawa. Ana watsa siginar 4-20mA ta amfani da tsayayyen halin yanzu na 4-20 milliamps, 0-10V ana watsa siginar ta amfani da ƙarfin lantarki daga 0 zuwa 10 volts, kuma ana watsa siginar 0-5V ta amfani da ƙarfin lantarki daga 0 zuwa 5 volts.
I2C (Inter-Integrated Circuit) ƙa'idar sadarwar dijital ce da ake amfani da ita don watsa bayanai tsakanin na'urori. Ana amfani da shi a cikin tsarin da aka haɗa da wasu aikace-aikace inda na'urori da yawa ke buƙatar sadarwa tare da juna. Ba kamar siginar analog ba, waɗanda ke watsa bayanai a matsayin ci gaba da ƙimar ƙima, I2C yana amfani da jerin bugun bugun dijital don watsa bayanai.
Kowane ɗayan waɗannan nau'ikan sigina yana da nasa tsarin fa'ida da rashin amfani, kuma mafi kyawun zaɓi zai dogara ne akan takamaiman buƙatun aikace-aikacen. Misali, siginar 4-20mA galibi ana fifita su don watsa siginar nesa mai nisa da babbar rigakafi, yayin da siginar 0-10V da 0-5V na iya ba da ƙuduri mafi girma da daidaito mafi kyau. Ana amfani da I2C gabaɗaya don sadarwar gajeriyar nisa tsakanin ƙananan adadin na'urori.
1. Yawan dabi'u:Sigina na 4-20mA suna watsa wutar lantarki daga 4 zuwa 20 milliamps, sigina 0-10V suna watsa wutar lantarki daga 0 zuwa 10 volts, kuma siginonin 0-5V suna watsa wutar lantarki daga 0 zuwa 5 volts. I2C ka'idar sadarwa ce ta dijital kuma baya watsa ƙima mai ci gaba.
2. Watsa sigina:Ana watsa siginar 4-20mA da 0-10V ta amfani da madauki na yanzu ko ƙarfin lantarki, bi da bi. 0-5V kuma ana watsa siginar ta amfani da wutar lantarki. Ana watsa I2C ta amfani da jerin bugun bugun dijital.
3. Daidaitawa:4-20mA, 0-10V, da 0-5V sigina yawanci jituwa tare da na'urori da yawa, kamar yadda ake amfani da ko'ina a masana'antu sarrafa kansa da sauran aikace-aikace. Ana amfani da I2C da farko a cikin tsarin da aka haɗa da sauran aikace-aikace inda na'urori da yawa ke buƙatar sadarwa tare da juna.
4. Shawara:Sigina na 4-20mA suna da ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙimar da za su iya aikawa (16mA kawai). 0-10V da 0-5V sigina na iya bayar da ƙuduri mafi girma da mafi inganci, dangane da takamaiman buƙatun aikace-aikacen. I2C ka'idar dijital ce kuma ba ta da ƙuduri kamar yadda siginar analog ke yi.
5. rigakafin surutu:4-20mA sigina suna da matukar juriya ga amo da tsangwama saboda amfani da madauki na yanzu don watsa sigina. 0-10V da 0-5V sigina na iya zama mafi sauƙi ga amo, dangane da takamaiman aiwatarwa. I2C gabaɗaya yana da juriya ga amo yayin da yake amfani da bugun dijital don watsa sigina.
Wanne ya fi amfani?
Wanne ne mafi kyawun fitarwa don watsa zafi da zafi?
Yana da wahala a faɗi wane zaɓin fitarwa ne aka fi amfani da shi don masu watsa zafi da zafi, saboda ya dogara da takamaiman aikace-aikacen tsarin da buƙatunsa. Koyaya, 4-20mA da 0-10V ana amfani dasu sosai don watsa ma'aunin zafin jiki da zafi a cikin sarrafa kansa na masana'antu da sauran aikace-aikace.
4-20mA sanannen zaɓi ne don masu watsa zafi da zafi saboda ƙarfinsa da ƙarfin watsa nisa. Har ila yau, yana da juriya ga hayaniya da tsangwama, wanda ya sa ya dace don amfani da su a cikin yanayi mai hayaniya.
0-10V wani zaɓi ne da ake amfani da shi sosai don masu watsa zafi da zafi. Yana ba da ƙuduri mafi girma kuma mafi kyawun daidaito fiye da 4-20mA, wanda zai iya zama mahimmanci a aikace-aikacen da ke buƙatar ainihin daidaici.
Daga ƙarshe, mafi kyawun zaɓin fitarwa don watsa zafi da zafi zai dogara da takamaiman buƙatun aikace-aikacen. Abubuwan da ke haifar da nisa tsakanin mai watsawa da mai karɓa, matakin daidaito da ƙuduri da ake buƙata, da yanayin aiki (misali, kasancewar hayaniya da tsangwama).
Menene Babban Aikace-aikacen Fitowar 4-20mA?
4-20mA fitarwa ne yadu amfani a masana'antu aiki da kai da sauran aikace-aikace saboda ta robustness da kuma dogon nesa watsa damar. Wasu aikace-aikacen gama gari na fitowar 4-20mA sun haɗa da:
1. Sarrafa Tsari:Ana amfani da 4-20mA sau da yawa don watsa masu canjin tsari, kamar zafin jiki, matsa lamba, da ƙimar kwarara, daga na'urori masu auna sigina a cikin tsarin sarrafa tsari.
2. Kayan Aikin Masana'antu:4-20mA yawanci ana amfani dashi don watsa bayanan aunawa daga kayan aikin masana'antu, kamar mitoci masu gudana da na'urori masu auna matakin, zuwa masu sarrafawa ko nuni.
3. Gina Automation:Ana amfani da 4-20mA wajen gina tsarin sarrafa kansa don watsa bayanai game da zazzabi, zafi, da sauran yanayin muhalli daga na'urori masu auna sigina zuwa masu sarrafawa.
4. Samar da Wutar Lantarki:Ana amfani da 4-20mA a cikin tsire-tsire masu samar da wutar lantarki don watsa bayanan ma'auni daga na'urori masu auna firikwensin da kayan aiki zuwa masu sarrafawa da nuni.
5. Man Fetur:4-20mA yawanci ana amfani dashi a masana'antar mai da iskar gas don watsa bayanan ma'auni daga na'urori masu auna firikwensin da na'urori a cikin dandamali da bututun teku.
6. Maganin Ruwa da Ruwa:Ana amfani da 4-20mA a cikin ruwa da tsire-tsire masu kula da ruwa don watsa bayanan ma'auni daga firikwensin da kayan aiki zuwa masu sarrafawa da nuni.
7. Abinci da Abin sha:Ana amfani da 4-20mA a cikin masana'antar abinci da abin sha don watsa bayanan ma'auni daga na'urori masu auna firikwensin da kayan aiki zuwa masu sarrafawa da nuni.
8. Motoci:Ana amfani da 4-20mA a cikin masana'antar kera motoci don watsa bayanan aunawa daga na'urori masu auna firikwensin da kayan aiki zuwa masu sarrafawa da nuni.
Shin kuna sha'awar ƙarin koyo game da yanayin zafin mu 4-20 da watsa zafi? Tuntube mu ta imelka@hengko.comdon samun amsa duk tambayoyinku kuma don karɓar ƙarin bayani game da samfurin mu. Mun zo nan don taimaka muku yanke shawara mafi kyau don bukatunku. Kada ku yi shakka ku tuntuɓe mu - muna sa ran ji daga gare ku!
Lokacin aikawa: Janairu-04-2023
