Nhazi akara

A na-eji electrocardiogram (ECG) iji weghara echiche nke ọnọdụ obi n'ime oge. Ejikọtara ya na anụ ahụ site na igwe na-adịghị na mpụga ma gbanwee gaa na akara eletrik maka nchịkọta. Mkpụrụ akụ ọ bụla guzobere na mpụga obi nwere ụgwọ metụtara, nke na-ekwuputa n'ime obi ụtọ ọ bụla. Ọ na-apụta na anụ ahụ n'ụdị akara eletriki, nke enwere ike ịchọpụta ma mee ka eleptrioniogramio.

Dị ka afọ 1900, WADEM Enthereven chepụtara electrocardiogram mbụ bara uru. Usoro ahụ bụ nnukwu ma chọọ ọtụtụ mmadụ iji kpochapụ ya. Onye ọrịa ahụ kwesịrị itinye aka ya na ụkwụ ya na nnukwu elektrọde nwere elecrolyte. Taa Nyochaa Nlekọta ECG bụ kọmpat na mfe ibu, nke mere na ndị ọrịa nwekwara ike iburu ya mgbe ha na-eje ije. EBGE-DELGE-DELGE maka iji ụlọ nwere ike iburu ya n'akpa uwe.

ECG Bara:

Okwu a bụ 'ụzọ' na-egosi 'electrocardiogram n'isiokwu a na-ezo aka na voltaji abụọ n'etiti electrode abụọ ahụ, nke ngwaọrụ ahụ dere. Iji maa atụ, "Ndọrọ_i" bụ voltaji n'etiti aka ekpe na ogwe aka nri electrodes. Ma na-eduga_i na nduzi_ii na-ezo aka na aka na nkwonkwo ụkwụ. V1-V6 na-ezo aka na obi na-eduga. Ecg nsuso V1 bụ ọdịiche dị n'etiti VC1 voltaji (voltaji nke igbe electrode), na nkezi voltaji nke ndu_i, na-eduga_ii, na-eduga_ii. Usoro akụkọ Udo iri na abụọ na-eduga n'ụkpụrụ atọ dị mma na ụkpụrụ anọ sitere na ya. Tebụl 1 na-enye nkọwa dị mkpirikpi nke ụdị kpụ ọkụ akpụ (n'ezie ma rite).

Nkọwa aha

Nke a bụ ezigbo ndu, egosiri na ECG Chọpụta.

Tebụl 1: Aha ndu na ebe ecng ebe.

A na-egosipụta eriri ọkụ nke ECT na ọnụ ọgụgụ 1. The x Axis na-anọchi anya ọkwa oge ahụ. N'ebe a, onye ọ bụla grid (5 mm) kwekọrọ na 20 ms. Y axis na-egosi njupụta nke mgbaàmà ejidere. Nke a ọ bụla (5 mm) na y axis kwekọrọ na 0,5 mv. (10mm / mv na 25mm / s)

Ọgụgụ 1: Ebe ESGG EBG.

Atụmatụ ECG:

Nzọụkwụ mbụ na imewe nke usoro Ekg gụnyere ụdị akara ngosi ndị dị mkpa inweta. Ihe ngosi electrocardiogram gụnyere obere voltaji dị ala na-adị ugbu a na nnukwu echiche na mkpọtụ. Ọgụgụ 2 na-egosi njirimara nke akara ECG. Enwere obere oge dị elu na sistemụ ahụ n'ihi ọkara-sel nke electrodes mepụtara. Ag / Andcl (ọla ọcha na-acha ọla ọcha) bụ electrode kachasị na sistemụ electrocardiogram, yana voltaji na-ekpo ọkụ bụ +/- 300mv. Ihe mgbaàmà a na-atụ anya ya bụ +/- 0.5MV na-enweghị atụ na ọnọdụ electrode. Na mgbakwunye, sistemụ ahụ ga-emechi mkpọtụ 50 / 60Hz site na akara ike iji mepụta mgbama nkịtị. Ihe njupụta nke ike mkpọtụ nke ike nwere ike buru oke ibu ma ọ dị mkpa ka a gbanwee.

Ọgụgụ nke 2: njirimara nke akara ECG ka enwetara.

ECG nnweta

Nhazi Alog Alog bụ akụkụ dị mkpa nke usoro UCG n'ihi na ọ chọrọ ịmata ọdịiche dị n'etiti mkpọtụ na akara ngosi achọrọ). Usoro nhazi nhazi Alog nke Alog Alog na-agụnye ihe ngosi iji belata akara na ọnọdụ nkịtị. Ihe ntinye a na-arụ ọrụ na +/- 5V ma na-ejikarị ya na-abawanye oke ikuku. Nta a na-atụpụta ihe ndị a na-enweghị atụ n'ihi na ọnweghị ụdị akpụkpọ ahụ nwere ike buru oke ibu. Achọrọ AMP AMP maka nhazi akara electrocardiogram. Usoro mgbaama nke ECG nnweta usoro gụnyere ihe ngosi, ihe nzacha (nke enwere ike mejupụta site OP Amps) na adcs.