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Portable device for continuous sensing with rapidly pulsed LEDs - Part1: rapid on-the-fly processing of large data streams using an open source microcontroller with field programmable gate array
journal contribution
posted on 2023-05-20, 03:45 authored by Noori, A, Mahbub, P, John ParryJohn Parry, Davis, J, Arko LucieerArko Lucieer, Miroslav MackaMiroslav MackaWe designed a portable system using an open source microcontroller (μC) with built-in field programmable gate array (FPGA) for on-the-fly data acquisition and processing of optical data generated from rapidly pulsed infrared light emitting diodes (IR LEDs) for optical sensing of gases. The system is used for rapid pulse generation (ca. 2 μs short pulses with a typical repetition rate of 1 kHz) to drive the IR LED, as well as for the optical sensing data acquisition and processing on-thefly large data streams of ca. 2 Gbit/s. The flexibility and performance of the system is demonstrated. Each of the digitally processed signal pulses yielded one data point of analytical signal in time as a quasi-continuous data stream produced at a rate of between 1000 and 0.1 Hz. This microcontroller-based portable open source platform is then implemented in on-the-fly data acquisition and processing, of analytical signals enabling continuous gas sensing.
History
Publication title
MeasurementVolume
146Pagination
749-757ISSN
0263-2241Department/School
School of Natural SciencesPublisher
ElsevierPlace of publication
Oxford, EnglandRights statement
Copyright 2019 Elsevier Ltd.Repository Status
- Restricted