Zobrazeno 1 - 10
of 26
pro vyhledávání: '"Jaan Ojarand"'
Publikováno v:
Sensors, Vol 19, Iss 8, p 1891 (2019)
Impedance spectroscopy is a common approach in assessing passive electrical properties of biological matter. However, several problems appear in microfluidic devices in connection with the requirement for high sensitivity of signal acquisition from s
Externí odkaz:
https://doaj.org/article/63b894629e614cba99ee7f3b240ebf0d
Publikováno v:
IEEE Transactions on Biomedical Circuits and Systems. 16:891-901
The paper investigates the impacts of the selected electrical equivalent circuit model, measurement setup, and surrounding environment on the trustworthiness of electrical bioimpedance measurement and obtained model data in the human body. The influe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8893192a404060c21ccc1ce19d31cd8a
https://doi.org/10.1109/tbcas.2022.3206666
https://doi.org/10.1109/tbcas.2022.3206666
Publikováno v:
I2MTC
A novel FPGA based 16-bit 20 MHz real-time electrical impedance measurement device has been developed. While such device can have several applications, then one of the purposes is to measure and monitor the human cardio-respiratory activity signals b
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0236c8a0c9260577db3584f3442a0183
https://doi.org/10.1109/i2mtc50364.2021.9460073
https://doi.org/10.1109/i2mtc50364.2021.9460073
Publikováno v:
Impedance Spectroscopy ISBN: 9783110558920
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5fd2150c6aa26e4e23e98d569781cc01
https://doi.org/10.1515/9783110558920-016
https://doi.org/10.1515/9783110558920-016
Autor:
Jaan Ojarand, Mart Min
Publikováno v:
Journal of Electrical Bioimpedance
Different excitation signals are applicable in the wideband impedance spectroscopy in general. However, in electrical bioimpedance (EBI) measurements, there are limitations that set specific demands on the properties of the excitation signals. This p
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::80d520ae71a58fffddfdaeb0f26e3fcb
https://pubmed.ncbi.nlm.nih.gov/33584929
https://pubmed.ncbi.nlm.nih.gov/33584929
Publikováno v:
2018 16th Biennial Baltic Electronics Conference (BEC).
Impedance spectroscopy is a common approach in assessing passive electrical properties of biological matter. However, several problems appear in microfluidic devices in connection with high sensitivity signal acquisition from small volume sensors. Th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ae9580d876e8da6bfcf266d152556f58
https://doi.org/10.1109/bec.2018.8600955
https://doi.org/10.1109/bec.2018.8600955
Autor:
Jaan Ojarand, Mart Min
Publikováno v:
Elektronika ir Elektrotechnika
Multisine signals are used in many applications like fast estimation of frequency response function, as well as in a variety of other fields. Synthesis of a low crest factor (CF) multisine waveform with the given amplitude spectrum depends on initial
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::075c39e4a68444aca6e54e0f9d05d209
https://doi.org/10.5755/j01.eie.23.2.18001
https://doi.org/10.5755/j01.eie.23.2.18001
Autor:
Paul Annus, Marko Reidla, Mart Min, Olev Martens, Jaan Ojarand, Marek Rist, Raul Land, Toomas Parve
Publikováno v:
6th European Conference of the International Federation for Medical and Biological Engineering
IFMBE Proceedings ISBN: 9783319111278
IFMBE Proceedings
IFMBE Proceedings-6th European Conference of the International Federation for Medical and Biological Engineering
IFMBE Proceedings ISBN: 9783319111278
IFMBE Proceedings
IFMBE Proceedings-6th European Conference of the International Federation for Medical and Biological Engineering
Electrical bioimpedance of living tissues changes over time due to heart beating and breathing. To measure the changes in impedance spectrum requires sophisticated instrumentation. In this paper, a modular system for fast measurement of the time-vari
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a3554e8a60198f9bfbe30eedce9d3b38
Autor:
Mart Min, Jaan Ojarand
Publikováno v:
Elektronika ir Elektrotechnika
This paper deals with finding the highly efficient multifrequency excitation waveforms for fast bioimpedance spectroscopy. However, the solutions described here could be useful also in other fields of impedance spectroscopy. Theoretically, the useful
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::38eff19a90b9604e6caddb23133a737f
https://doi.org/10.5755/j01.eee.20.5.7115
https://doi.org/10.5755/j01.eee.20.5.7115
Publikováno v:
I2MTC
2014 IEEE International Instrumentation and Measurement Technology Conference (I2MTC) Proceedings
2014 IEEE International Instrumentation and Measurement Technology Conference (I2MTC) Proceedings
Multisine excitation is widely used in impedance measurements to retain the advantages of the sine wave, while reducing the measurement time. To keep the crest factor (CF) of the excitation signal low, the initial phases of the signal components must
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::506379f13f7423f0dd1c3b39788a83eb
https://doi.org/10.1109/i2mtc.2014.6860859
https://doi.org/10.1109/i2mtc.2014.6860859