Ngawaphi aMalungu amaNe oMatshini we-EKG?

I-EKG, okanye i-Electrocardiogram, ngumatshini osetyenziselwa ukubeka iliso kunye nokuvavanya iingxaki zentliziyo ezinokwenzeka kwisigulane sonyango.Ii-electrode ezincinci zibekwe esifubeni, emacaleni, okanye ezinqeni.Umsebenzi wombane wentliziyo uya kuthi emva koko urekhodwe kwiphepha legrafu ekhethekileyo kwisiphumo sokugqibela.Kukho izinto ezine eziphambili kumatshini we-EKG.

Ii-electrodes

Ii-electrodes zineentlobo ezimbini, i-bipolar kunye ne-unipolar.I-bipolar electrode inokubekwa kuzo zombini izihlahla kunye nemilenze ukulinganisa umahluko wombane phakathi kwezi zimbini.I-electrodes ibekwe emlenzeni wasekhohlo kunye nezandla zombini.Ii-electrode ezi-Unipolar, kwelinye icala, zilinganisa umahluko wombane okanye isignali yombane phakathi kwe-electrode ekhethekileyo yesalathiso kunye nomphezulu womzimba wokwenyani ngelixa ubekwe kwiingalo nemilenze yomibini.I-electrode yereferensi yi-electrode ye-heart-rate yesiqhelo eyenziwa oogqirha ukuthelekisa imilinganiselo.Basenokudityaniswa nesifuba kwaye bajonge nayiphi na indlela eguqukayo yentliziyo.

Izikhulisi

I-amplifier ifunda umqondiso wombane emzimbeni kwaye uyilungiselele isixhobo sokukhupha.Xa isignali ye-electrode ifikelela kwi-amplifier ithunyelwa kuqala kwi-buffer, icandelo lokuqala le-amplifier.Xa ifika kwisithinteli, uphawu luyazinziswa kwaye emva koko luguqulelwe.Emva koko, i-amplifier yokwahlukana iqinisa umqondiso nge-100 ukuze ufunde kangcono imilinganiselo yeempawu zombane.

Iingcingo zokuqhagamshela

Iingcingo zokudibanisa ziyinxalenye elula ye-EKG enendima ecacileyo kumsebenzi womatshini.Iingcingo zokudibanisa zihambisa umqondiso ofundwe kwi-electrodes kwaye uyithumele kwi-amplifier.Ezi ngcingo zidibanisa ngokuthe ngqo kwi-electrodes;uphawu luthunyelwa ngabo kwaye luqhagamshelwe kwi-amplifier.

Isiphumo

Isiphumo sisixhobo esikwi-EKG apho umsebenzi wombane womzimba ucutshungulwa emva koko urekhodwe kwiphepha legrafu.Oomatshini abaninzi be-EKG basebenzisa into ebizwa ngokuba sisishicileli sephepha.Emva kokuba imveliso irekhoda isixhobo, ugqirha ufumana ikopi enzima yemilinganiselo.Abanye oomatshini be-EKG babhala imilinganiselo kwiikhompyuter endaweni yesishicileli sephepha.Ezinye iintlobo zokurekhoda zii-oscilloscopes, kunye neeyunithi zeteyiphu zemagnethi.Imilinganiselo iya kuqala irekhodwe kwi-analog ize ke iguqulelwe kufundo lwedijithali.