Digitally Controllable Multifrequency Impedance Emulator for Bioimpedance Hardware Validation

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26220%2F26%3A0197290" target="_blank" >RIV/00216305:26220/26:0197290 - isvavai.cz</a>

Výsledek na webu

<a href="https://onlinelibrary.wiley.com/doi/epdf/10.1002/cta.4324" target="_blank" >https://onlinelibrary.wiley.com/doi/epdf/10.1002/cta.4324</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1002/cta.4324" target="_blank" >10.1002/cta.4324</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Digitally Controllable Multifrequency Impedance Emulator for Bioimpedance Hardware Validation

Popis výsledku v původním jazyce

The accurate emulation of the electrical impedance of biological tissues is crucial for the development and validation of bioimpedance measurement devices and algorithms. This paper describes a digitally controllable impedance emulator capable of reproducing values representative of tissue bioimpedance in user-specified resistance, reactance, and frequency ranges up to 1 MHz. The presented solution uses a 2R-1C impedance model to emulate the impedance characteristics of a biological tissue. Specific selection of each element value in this model is achieved using analog multiplexers with low R-on resistance. A MATLAB algorithm was developed for value estimation using target impedance requirements. An example design to emulate impedance from 1 kHz to 1 MHz with 10 Omega to 400 Omega resistance and -45 Omega maximum reactance is provided. The nonideal behavior of this design was evaluated and compared against experimentally collected impedance measurements. Deviations of 50 Omega up to 100 kHz (with approximately 5% deviations up to 1 MHz) and reactance deviations were also

Název v anglickém jazyce

Digitally Controllable Multifrequency Impedance Emulator for Bioimpedance Hardware Validation

Popis výsledku anglicky

The accurate emulation of the electrical impedance of biological tissues is crucial for the development and validation of bioimpedance measurement devices and algorithms. This paper describes a digitally controllable impedance emulator capable of reproducing values representative of tissue bioimpedance in user-specified resistance, reactance, and frequency ranges up to 1 MHz. The presented solution uses a 2R-1C impedance model to emulate the impedance characteristics of a biological tissue. Specific selection of each element value in this model is achieved using analog multiplexers with low R-on resistance. A MATLAB algorithm was developed for value estimation using target impedance requirements. An example design to emulate impedance from 1 kHz to 1 MHz with 10 Omega to 400 Omega resistance and -45 Omega maximum reactance is provided. The nonideal behavior of this design was evaluated and compared against experimentally collected impedance measurements. Deviations of 50 Omega up to 100 kHz (with approximately 5% deviations up to 1 MHz) and reactance deviations were also

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20200 - Electrical engineering, Electronic engineering, Information engineering

Projekt

—

Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2024

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

INTERNATIONAL JOURNAL OF CIRCUIT THEORY AND APPLICATIONS

ISSN

0098-9886

e-ISSN

1097-007X

Svazek periodika

—

Číslo periodika v rámci svazku

53

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

14

Strana od-do

3567-3580

Kód UT WoS článku

001334185500001

EID výsledku v databázi Scopus

2-s2.0-85206655321