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Memorias de investigación
Ponencias en congresos:
Time lag determination on ultrasound wave measurement using different sensors positioning
Año:2016
Áreas de investigación
  • Ingenierías,
  • Ingeniería civil y arquitectura,
  • Ingeniería de construcción
Datos
Descripción
Mechanical properties of timber can be estimated from wave propagation velocity by measuring the wave time of flight. A time lag is observed in wave time of flight depending on the species-knottiness and device, usually obtained by end to end measurements at different distances. The aim of this research is the determination of that time lag by means of in situ time of flight measurements. Ultrasound wave transmission time was measured in 30 pieces of Spanish Scots pine (Pinus sylvestris L.), 90 by 140 mm cross-section size and 4 m long. Different sensor placement arrangements were used: direct measurement (end to end), surface measurement (edge to same edge and face to same face) and crossed measurements (edge to opposite edge and face to opposite face). The pieces were successively shortened to 3, 2 and 1 m, establishing a linear regression between measuring distance and time of flight obtaining the time lag. Surface and crossed measurements were compared with direct measurement, in order to validate the time lag procedure.
Internacional
Si
Nombre congreso
World Conference on Timber Engineering
Tipo de participación
960
Lugar del congreso
Vienna, Austria
Revisores
No
ISBN o ISSN
978-3-903039-00-1
DOI
Fecha inicio congreso
22/08/2016
Fecha fin congreso
25/08/2016
Desde la página
951
Hasta la página
958
Título de las actas
Proceedings of the World Conference on Timber Engineering, WCTE 2016
Esta actividad pertenece a memorias de investigación
Participantes
  • Autor: Francisco Arriaga Martitegui (UPM)
  • Autor: Daniel Fernandez Llana (UPM)
  • Autor: Miguel Esteban Herrero (UPM)
  • Autor: Guillermo Iñiguez Gonzalez (UPM)
  • Autor: José Ramón Aira Zunzunegui (Univ. de Soria)
Grupos de investigación, Departamentos, Centros e Institutos de I+D+i relacionados
  • Creador: Grupo de Investigación: Construcción con Madera
  • Departamento: Ingeniería y Gestión Forestal y Ambiental
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