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Remote unit for mobile-telephony telemetering for distributed ultrasonic transducers

AuthorsRodríguez, Miguel A. CSIC ORCID ; Sanz Sánchez, Pedro Tomás; Zaplana, David; Ramos, Antonio; San Emeterio, José Luis CSIC
KeywordsRemote ultrasonic inspections
Ultrasonic data transmission
Mobile-telephone telemetry
Quality control
Ultrasonic non destructive testing
Distributed measurements
Issue DateSep-2002
PublisherSociedad Española de Acústica
CitationForum Acusticum Sevilla 2002. Ultrasonics ; ULT-04-013-IP
AbstractIn some ultrasonic inspections, distributed measurements have to be made at different locations, which are distant from the station where the data collected must be checked and analysed. In this paper, the design of a remote unit for such purpose is described. This unit is intended to make ultrasonic measurements and transmit them to a local unit. The involved ultrasonic and telecommunication stages are explained. This development combines low-cost commercial devices with own-designed technologies. The design parameters and the block diagrams of each subsystem are detailed. Additionally, the configuration of a laboratory prototype, developed in order to test the design viability, is presented. This prototype includes a high voltage spike generator for the transducer driving, a broad-band signal amplifier, a multiplexed signal acquisition / A-D card, a mobile telephony system for the ultrasonic data transmission, and the software controlling telemetering aspects in remote and local units.
Description6 pages, 5 figures.-- PACS nrs.: 43.35, 43.38, 84.40.-- Communication presented at: Forum Acusticum Sevilla 2002 (Sevilla, Spain, 16-20 Sep 2002), comprising: 3rd European Congress on Acoustics; XXXIII Spanish Congress on Acoustics (TecniAcústica 2002); European and Japanese Symposium on Acoustics; 3rd Iberian Congress on Acoustics.-- Special issue of the journal Revista de Acústica, Vol. XXXIII, year 2002.
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