EMI robust design of sensor-frontends

Markus Haberler, Mario Auer

Publikation: Beitrag in Buch/Bericht/KonferenzbandBeitrag in einem KonferenzbandForschungBegutachtung

Abstract

Sensors are the first element in a signal chain and in order to fulfill their function they often have to be placed in close proximity to the measured object and substance. Consequently, a certain amount of wiring is required that is vulnerable to electromagnetic interferences. This is particularly true, when sensors are used that use the electromagnetic field for powering and data-transfer. In this case, the EMI robustness is of fundamental importance since it limits the accuracy of the measurement and has to be considered an integral part of the design process.

The focus will be on potentiostats, which are used as a front-end for electrochemical sensors, which are powered and read out using near-field communication (NFC). The design of these circuits comprises a number of different challenges. The energy is harvested from the field which limits the quality of the on-chip power supply and the amount of power that is available to operate the circuit.

A number of different topologies exist to realize the potentiostat. The focus will be on three-electrode configurations, where the voltage between a reference electrode (RE) and the working electrode (WE) is controlled using the control electrode (CE). The injected current has to be measured.
Different topologies will be presented and compared regarding their applicability for the required measurements. Methods to process the output signal under the presence of interferers will be discussed.
Originalspracheenglisch
Titel17. EMV-Fachtagung
Herausgeber (Verlag)Österreichischer Verband für Elektrotechnik
ISBN (elektronisch)978-3-903249-08-0
PublikationsstatusAngenommen/In Druck - 2019
Veranstaltung17. EMV-Fachtagung - TU Graz, Institut für Elektronik, Graz, Österreich
Dauer: 27 Feb 201928 Feb 2019

Publikationsreihe

NameOVE-Schriftenreihe
Band98

Konferenz

Konferenz17. EMV-Fachtagung
LandÖsterreich
OrtGraz
Zeitraum27/02/1928/02/19

Fingerprint

Electrodes
Sensors
Topology
Electrochemical sensors
Networks (circuits)
Electric wiring
Signal interference
Data transfer
Electromagnetic fields
Electric potential
Near field communication

Dies zitieren

Haberler, M., & Auer, M. (Angenommen/Im Druck). EMI robust design of sensor-frontends. in 17. EMV-Fachtagung (OVE-Schriftenreihe ; Band 98). Österreichischer Verband für Elektrotechnik.

EMI robust design of sensor-frontends. / Haberler, Markus; Auer, Mario.

17. EMV-Fachtagung. Österreichischer Verband für Elektrotechnik, 2019. (OVE-Schriftenreihe ; Band 98).

Publikation: Beitrag in Buch/Bericht/KonferenzbandBeitrag in einem KonferenzbandForschungBegutachtung

Haberler, M & Auer, M 2019, EMI robust design of sensor-frontends. in 17. EMV-Fachtagung. OVE-Schriftenreihe , Bd. 98, Österreichischer Verband für Elektrotechnik, Graz, Österreich, 27/02/19.
Haberler M, Auer M. EMI robust design of sensor-frontends. in 17. EMV-Fachtagung. Österreichischer Verband für Elektrotechnik. 2019. (OVE-Schriftenreihe ).
Haberler, Markus ; Auer, Mario. / EMI robust design of sensor-frontends. 17. EMV-Fachtagung. Österreichischer Verband für Elektrotechnik, 2019. (OVE-Schriftenreihe ).
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