A DSP-based Multichannel EBI Measurement Device

被引：0
|
作者：
Abdullayev, Anar [1 ]
Rist, Marek [1 ]
Krivosei, Andrei [1 ]
Metshein, Margus [1 ]
Land, Raul [1 ]
Martens, Olev [1 ]
机构：
[1] Tallinn Univ Technol, Thomas Johann Seebeck Dept Elect, Tallinn, Estonia
来源：
2024 IEEE INTERNATIONAL INSTRUMENTATION AND MEASUREMENT TECHNOLOGY CONFERENCE, I2MTC 2024 | 2024年
关键词：
impedance cardiography (ICG); electrical bioimpedance (EBI); electrocardiography (ECG); photoplethysmography (PPG); test and evaluation platform; DSP; ELECTRICAL-IMPEDANCE TOMOGRAPHY;
D O I：
10.1109/I2MTC60896.2024.10560714
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
An advanced DSP-based multichannel electrical bioimpedance (EBI) measurement device has been developed, contributing to the evolution of bioimpedance analysis and hemodynamical monitoring. This device, leveraging the Texas Instrument TMS320F28379D dual-core 16/32-bit DSP, offers enhancements in bioimpedance measurements, including dual-channel simultaneous measurement and a multiplexing system for output electrodes. These features enable extended multi-channel bioimpedance analysis and the potential for more comprehensive physiological monitoring. High-resolution data acquisition is achieved with bioimpedance signals sampled using a 16-bit ADC, aiming for an error margin of less than 0.012%. The combination of simultaneous multi-channel measurements and improved precision positions the device as a promising tool for biomedical research, including applications in cuffless dynamical blood pressure estimation and bioelectrical impedance tomography of various tissues and organs. Additionally, the platform integrates electrocardiography (ECG) and photoplethysmography (PPG) measurements. The device offers multiple data transfer options, such as electrically isolated USB and wireless connectivity (Bluetooth or Wi-Fi), and can also serve as a testbed for evaluating embedded measurement algorithms.
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页数：6
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