I-EKG, noma i-Electrocardiogram, ingumshini osetshenziselwa ukuqapha nokuhlola izinkinga zenhliziyo ezingaba khona esigulini sezokwelapha.Ama-electrode amancane abekwe esifubeni, emaceleni, noma ezinqulwini.Umsebenzi kagesi wenhliziyo uyobe usurekhodwa ephepheni legrafu elikhethekile ukuze kube nomphumela wokugcina.Kunezinto ezine eziyinhloko emshinini we-EKG.
Ama-Electrodes
Ama-electrode anezinhlobo ezimbili, i-bipolar ne-unipolar.Ama-electrode e-bipolar angabekwa kuzo zombili izihlakala nemilenze ukuze kulinganiswe umehluko we-voltage phakathi kwakho kokubili.Ama-electrode abekwe emlenzeni wesobunxele nasezihlakaleni zombili.Ngakolunye uhlangothi, ama-electrode e-unipolar, akala umehluko we-voltage noma isignali kagesi phakathi kwe-electrode eyisithenjwa ekhethekile nendawo yangempela yomzimba kuyilapho ibekwe kuzo zombili izingalo nemilenze.I-electrode eyireferensi iyi-electrode evamile yesilinganiso senhliziyo esetshenziswa odokotela ukuqhathanisa izilinganiso.Angaphinde anamathiselwe esifubeni futhi abuke noma yimaphi amaphethini enhliziyo aguqukayo.
Ama-Amplifaya
I-amplifier ifunda isignali kagesi emzimbeni futhi iyilungiselele idivayisi ephumayo.Lapho isignali ye-electrode ifinyelela ku-amplifier ithunyelwa okokuqala ku-buffer, ingxenye yokuqala ye-amplifier.Uma ifika kusigcinalwazi, isignali iyasimama bese ihunyushwa.Ngemva kwalokhu, i-amplifier ehlukile iqinisa isignali ngo-100 ukuze ufunde kangcono izilinganiso zezimpawu zikagesi.
Izintambo zokuxhuma
Izintambo zokuxhuma ziyingxenye elula ye-EKG enendima esobala emsebenzini womshini.Izintambo ezixhumayo zidlulisa isignali efundwayo kuma-electrode futhi iyithumele ku-amplifier.Lezi zintambo zixhuma ngqo kuma-electrode;isignali ithunyelwa ngabo futhi ixhunywe ku-amplifier.
Okukhiphayo
Okuphumayo kuyidivayisi eku-EKG lapho ukusebenza kukagesi komzimba kucutshungulwa khona bese kuqoshwa ephepheni legrafu.Imishini eminingi ye-EKG isebenzisa lokho okubizwa ngokuthi i-paper-strip recorder.Ngemva kokurekhoda idivayisi, udokotela uthola ikhophi eqinile yezilinganiso.Eminye imishini ye-EKG irekhoda izilinganiso kumakhompyutha esikhundleni serekhoda yomugqa wephepha.Ezinye izinhlobo zokuqopha ama-oscilloscopes, namayunithi we-magnetic tape.Izilinganiso zizoqala zirekhodwe ku-analogi bese ziguqulelwa ekufundweni kwedijithali.
Isikhathi sokuthumela: Dec-22-2018