A Low-Cost Modular Platform for Heterogeneous Data Acquisition with Accurate Interchannel Synchronization
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 fo...
| Main Authors: | , , , |
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| Format: | info:eu-repo/semantics/article |
| Language: | English |
| Published: |
MDPI
2020
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| Subjects: | |
| Online Access: | http://hdl.handle.net/10835/7332 |
| _version_ | 1789406707385892864 |
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| author | Blanco Claraco, José Luis López Martínez, Javier Torres Moreno, José Luis Giménez Fernández, Antonio |
| author_facet | Blanco Claraco, José Luis López Martínez, Javier Torres Moreno, José Luis Giménez Fernández, Antonio |
| author_sort | Blanco Claraco, José Luis |
| collection | DSpace |
| description | 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 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. |
| format | info:eu-repo/semantics/article |
| id | oai:repositorio.ual.es:10835-7332 |
| institution | Universidad de Cuenca |
| language | English |
| publishDate | 2020 |
| publisher | MDPI |
| record_format | dspace |
| spelling | oai:repositorio.ual.es:10835-73322023-04-12T19:33:21Z A Low-Cost Modular Platform for Heterogeneous Data Acquisition with Accurate Interchannel Synchronization Blanco Claraco, José Luis López Martínez, Javier Torres Moreno, José Luis Giménez Fernández, Antonio accelerometers impact tests firmware design microcontroller open source quadrature encoders vibration analysis 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 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. 2020-01-16T08:39:32Z 2020-01-16T08:39:32Z 2015-10-27 info:eu-repo/semantics/article 1424-8220 http://hdl.handle.net/10835/7332 en https://www.mdpi.com/1424-8220/15/10/27374 Attribution-NonCommercial-NoDerivatives 4.0 Internacional http://creativecommons.org/licenses/by-nc-nd/4.0/ info:eu-repo/semantics/openAccess MDPI |
| spellingShingle | accelerometers impact tests firmware design microcontroller open source quadrature encoders vibration analysis Blanco Claraco, José Luis López Martínez, Javier Torres Moreno, José Luis Giménez Fernández, Antonio A Low-Cost Modular Platform for Heterogeneous Data Acquisition with Accurate Interchannel Synchronization |
| title | A Low-Cost Modular Platform for Heterogeneous Data Acquisition with Accurate Interchannel Synchronization |
| title_full | A Low-Cost Modular Platform for Heterogeneous Data Acquisition with Accurate Interchannel Synchronization |
| title_fullStr | A Low-Cost Modular Platform for Heterogeneous Data Acquisition with Accurate Interchannel Synchronization |
| title_full_unstemmed | A Low-Cost Modular Platform for Heterogeneous Data Acquisition with Accurate Interchannel Synchronization |
| title_short | A Low-Cost Modular Platform for Heterogeneous Data Acquisition with Accurate Interchannel Synchronization |
| title_sort | low-cost modular platform for heterogeneous data acquisition with accurate interchannel synchronization |
| topic | accelerometers impact tests firmware design microcontroller open source quadrature encoders vibration analysis |
| url | http://hdl.handle.net/10835/7332 |
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