Readout Circuit Implemented on PCB-Level for Embedded CNT Sensors

Autor: Eric Duchesne, Dominique Drouin, Hélène Fremont, Quentin Vandier, Julien Pezard
Přispěvatelé: Laboratoire Nanotechnologies et Nanosystèmes [Sherbrooke] (LN2), Université de Sherbrooke (UdeS)-École Centrale de Lyon (ECL), Université de Lyon-Université de Lyon-École supérieure de Chimie Physique Electronique de Lyon (CPE)-Institut National des Sciences Appliquées de Lyon (INSA Lyon), Université de Lyon-Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA), Institut Interdisciplinaire d'Innovation Technologique [Sherbrooke] (3IT), Université de Sherbrooke (UdeS), Laboratoire de l'intégration, du matériau au système (IMS), Centre National de la Recherche Scientifique (CNRS)-Institut Polytechnique de Bordeaux-Université Sciences et Technologies - Bordeaux 1
Jazyk: angličtina
Rok vydání: 2020
Předmět:
Zdroj: 2020 IEEE International Instrumentation and Measurement Technology Conference (I2MTC)
2020 IEEE International Instrumentation and Measurement Technology Conference (I2MTC), May 2020, Dubrovnik, Croatia. pp.1-6, ⟨10.1109/I2MTC43012.2020.9128884⟩
I2MTC
DOI: 10.1109/I2MTC43012.2020.9128884⟩
Popis: This paper presents an external analog readout circuit based on frequency response analysis implemented on PCB for the specific use of embedded carbon nanotube (CNT) sensors. The readout architecture based on analog coherent detection technique allows to extract resistance and reactance on a 400 kHz bandwidth with a range of sensor impedances from 8 kΩ to 181 kΩ range, a fixed 30 kΩ transimpedance gain, and a precision of 0.6 %. This readout is composed of 216 inputs to 2 outputs multiplexer network allowing to use a single impedance extraction circuit to monitor a test vehicle with 108 CNT sensors. The embedded sensors aim at studying temperature, humidity and strain inside a flip chip package to improve assembly processes.
Databáze: OpenAIRE