A Low-Cost Modular Platform for Heterogeneous Data Acquisition with Accurate Interchannel Synchronization
Ficheros
Identificadores
Compartir
Metadatos
Mostrar el registro completo del ítemAutor
Blanco Claraco, José Luis; López Martínez, Javier; Torres Moreno, José Luis; Giménez Fernández, AntonioFecha
2015-10-27Resumen
Most 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 sampl...
Palabra/s clave
accelerometers
impact tests
firmware design
microcontroller
open source
quadrature encoders
vibration analysis