Instrumentacijsko EKG pojačalo s istosmjerno vezanim ulaznim stupnjem : završni rad / Maja Barić ; [mentor Ratko Magjarević].
By: Barić, Maja
.
Contributor(s): Magjarević, Ratko [ths].
Publisher: Zagreb, M. Barić, 2015Description: 38 str. ; 30 cm + CD-ROM.Other title: DC coupled ECG instrumentation amplifier [Naslov na engleskom: ].Subject(s): EKG instrumentacijsko pojačalo visokopropusni Besselov filtar niskopropusni RC filtar smetnje | ECG instrumentation amplifier high – pass Bessel filter low – pass RC filter noiseDissertation note: preddiplomski studij Fakultet elektrotehnike i računarstva u Zagrebu smjer: Elektroničko i računalno inženjerstvo, šifra smjera: 35, datum predaje: 2015-06-12, datum završetka: 2015-07-13 Abstract: Sažetak na hrvatskom: U ovom radu rješavao se problem projektiranja jednokanalnog EKG pojačala. Projektirao se prema ulaznim zahtjevima prema kojima je predviđeno napajanje pojačala baterijom nominalnog napona 3,7 V, mora imati 2 načina rada: dijagnostički (0,05 – 120 Hz) i monitoriranje (1 – 45 Hz), a ulazni filtar mora biti niskopropusni. Kao ulazni filtar odabran je niskopropusni RC filtar. Nakon pojačanja u instrumentacijskom pojačalu, guše se niske frekvencije u Besselovom visokopropusnom filtru. Na kraju se signal dodatno pojačava u neinvertirajućem pojačalu.
Dobiveno je pojačalo karakteristika bliskih zahtijevanim. Izmjeren je EKG na ispitaniku pri čemu je dobiven očekivani signal na izlazu.Abstract: Sažetak na engleskom: This thesis is based on a problem of designing a single – channel electrocardiogram. Its design is based on given specifications which include 3,7 V single power supply, low – pass filter in its input stage and ability to work in two different modes chosen by the user: diagnosting mode (0,05 – 120 Hz) and monitoring mode (1 – 45 Hz). The chosen input stage filter is low – pass RC filter. After amplifying the signal in an instrumentation amplifier, low frequencies are attenuated in a high – pass Bessel filter. Finally, the signal is amplified in a non – inverting amplifier.
As a result, the designed ECG amplifier was confirmed to have very close specifications to the ones requested. Finally, ECG was measured on a test subject which resulted in expected output signals.
| Item type | Current location | Call number | Status | Date due | Barcode | Item holds |
|---|---|---|---|---|---|---|
Završni rad
|
Središnja knjižnica Spremište | ZR-721 | Arhivski primjerak | 0000000979139 |
preddiplomski studij Fakultet elektrotehnike i računarstva u Zagrebu smjer: Elektroničko i računalno inženjerstvo, šifra smjera: 35, datum predaje: 2015-06-12, datum završetka: 2015-07-13
Sažetak na hrvatskom: U ovom radu rješavao se problem projektiranja jednokanalnog EKG pojačala. Projektirao se prema ulaznim zahtjevima prema kojima je predviđeno napajanje pojačala baterijom nominalnog napona 3,7 V, mora imati 2 načina rada: dijagnostički (0,05 – 120 Hz) i monitoriranje (1 – 45 Hz), a ulazni filtar mora biti niskopropusni. Kao ulazni filtar odabran je niskopropusni RC filtar. Nakon pojačanja u instrumentacijskom pojačalu, guše se niske frekvencije u Besselovom visokopropusnom filtru. Na kraju se signal dodatno pojačava u neinvertirajućem pojačalu.
Dobiveno je pojačalo karakteristika bliskih zahtijevanim. Izmjeren je EKG na ispitaniku pri čemu je dobiven očekivani signal na izlazu.
Sažetak na engleskom: This thesis is based on a problem of designing a single – channel electrocardiogram. Its design is based on given specifications which include 3,7 V single power supply, low – pass filter in its input stage and ability to work in two different modes chosen by the user: diagnosting mode (0,05 – 120 Hz) and monitoring mode (1 – 45 Hz). The chosen input stage filter is low – pass RC filter. After amplifying the signal in an instrumentation amplifier, low frequencies are attenuated in a high – pass Bessel filter. Finally, the signal is amplified in a non – inverting amplifier.
As a result, the designed ECG amplifier was confirmed to have very close specifications to the ones requested. Finally, ECG was measured on a test subject which resulted in expected output signals.
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