Cost-effective optoelectronic system to measure the projectile velocity in high-velocity impact testing of aircraft and spacecraft structural elements

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dc.contributor.author Sánchez-Pena, José Manuel
dc.contributor.author Fernández, María Y.
dc.contributor.author Zaera Polo, Ramón Eulalio
dc.contributor.author Marcos Lucas, Carlos
dc.date.accessioned 2010-03-31T10:45:01Z
dc.date.available 2010-03-31T10:45:01Z
dc.date.issued 2007-05
dc.identifier.bibliographicCitation Optical Engineering, 2007, vol. 46, id 051014
dc.identifier.issn 0091-3286 (Print)
dc.identifier.issn 1560-2303 (Online)
dc.identifier.uri http://hdl.handle.net/10016/7564
dc.description 6 pages, 9 figures.-- PACS nrs.: 89.40.Dd; 85.60.Pg; 42.79.Kr.
dc.description.abstract We present a microcontrolled optoelectronic system to measure online the average velocity of a projectile impacting on aircraft and spacecraft structures. The projectile velocity can vary in the range from subsonic to supersonic. The implemented optical system is based on three optical barriers that are crossed by the projectiles before impacting on the structural elements. A simple optoelectronic prototype is constructed and tested. The flight times among the three optical barriers are obtained by the microcontroller system. The measured velocity accuracy in test conditions is better than 1%. A high-brightness liquid crystal display is used to show messages of the system configuration and also the measured projectile velocity. To ensure safety in the experimental impact tests, serial RS-232 communication can be used to monitor this information using a remote computer. The system is highly robust since it is able to measure projectile velocity even when an optical barrier is missed by failure in either the optical transmitter or the receptor.
dc.description.sponsorship This work was partially supported by CAM (FACTOTEM-CM: S-0505/ESP/000417).
dc.format.mimetype application/pdf
dc.language.iso eng
dc.publisher Society of Photo-optical Instrumentation Engineers (SPIE)
dc.rights © SPIE
dc.subject.other Aircraft testing
dc.subject.other Space vehicles
dc.subject.other Projectiles
dc.subject.other Vehicle dynamics
dc.subject.other Impact testing
dc.subject.other Liquid crystal displays
dc.subject.other Optoelectronic devices
dc.subject.other Computerised monitoring
dc.subject.other Peripheral interfaces
dc.subject.other Microcontrollers
dc.title Cost-effective optoelectronic system to measure the projectile velocity in high-velocity impact testing of aircraft and spacecraft structural elements
dc.type article
dc.type.review PeerReviewed
dc.description.status Publicado
dc.relation.publisherversion http://dx.doi.org/10.1117/1.2740771
dc.subject.eciencia Ingeniería Mecánica
dc.subject.eciencia Ingeniería Industrial
dc.identifier.doi 10.1117/1.2740771
dc.rights.accessRights openAccess
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