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dc.contributor.authorBlanco Claraco, José Luis
dc.contributor.authorLópez Martínez, Javier
dc.contributor.authorTorres Moreno, José Luis
dc.contributor.authorGiménez Fernández, Antonio
dc.date.accessioned2020-01-16T08:39:32Z
dc.date.available2020-01-16T08:39:32Z
dc.date.issued2015-10-27
dc.identifier.issn1424-8220
dc.identifier.urihttp://hdl.handle.net/10835/7332
dc.description.abstractMost experimental fields of science and engineering require the use of data acquisition systems (DAQ), devices in charge of sampling and converting electrical signals into digital data and, typically, performing all of the required signal preconditioning. Since commercial DAQ systems are normally focused on specific types of sensors and actuators, systems engineers may need to employ mutually-incompatible hardware from different manufacturers in applications demanding heterogeneous inputs and outputs, such as small-signal analog inputs, differential quadrature rotatory encoders or variable current outputs. A common undesirable side effect of heterogeneous DAQ hardware is the lack of an accurate synchronization between samples captured by each device. To solve such a problem with low-cost hardware, we present a novel modular DAQ architecture comprising a base board and a set of interchangeable modules. Our main design goal is the ability to sample all sources at predictable, fixed sampling frequencies, with a reduced synchronization mismatch (<1 µs) between heterogeneous signal sources. We present experiments in the field of mechanical engineering, illustrating vibration spectrum analyses from piezoelectric accelerometers and, as a novelty in these kinds of experiments, the spectrum of quadrature encoder signals. Part of the design and software will be publicly released online.es_ES
dc.language.isoenes_ES
dc.publisherMDPIes_ES
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 Internacional*
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/*
dc.subjectaccelerometerses_ES
dc.subjectimpact testses_ES
dc.subjectfirmware designes_ES
dc.subjectmicrocontrolleres_ES
dc.subjectopen sourcees_ES
dc.subjectquadrature encoderses_ES
dc.subjectvibration analysises_ES
dc.titleA Low-Cost Modular Platform for Heterogeneous Data Acquisition with Accurate Interchannel Synchronizationes_ES
dc.typeinfo:eu-repo/semantics/articlees_ES
dc.relation.publisherversionhttps://www.mdpi.com/1424-8220/15/10/27374es_ES
dc.rights.accessRightsinfo:eu-repo/semantics/openAccesses_ES


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Attribution-NonCommercial-NoDerivatives 4.0 Internacional
Except where otherwise noted, this item's license is described as Attribution-NonCommercial-NoDerivatives 4.0 Internacional