Téléchargement | - Voir le manuscrit accepté : High temperature and broadband immersion ultrasonic probes (PDF, 3.3 Mio)
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DOI | Trouver le DOI : https://doi.org/10.1109/JSEN.2006.874026 |
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Auteur | Rechercher : Ono, Yuu1; Rechercher : Kobayashi, Makiko; Rechercher : Moisan, Jean-François1; Rechercher : Jen, Cheng-Kuei1 |
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Affiliation | - Conseil national de recherches du Canada. Institut des matériaux industriels du CNRC
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Format | Texte, Article |
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Sujet | High-temperature ultrasonic transducer (HTUT); immersion probe; sol-gel-spray technique; thick film; ultrasonic imaging |
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Résumé | Immersion ultrasonic probes for measurements and imaging at high temperature are presented. The probes consist of sol–gel-sprayed thick films as piezoelectric ultrasonic transducers (UTs) directly deposited onto steel buffer rods. They operate in pulse-echo mode at temperatures up to 500°C. The operating ultrasonic frequency is between 5 MHz and 20 MHz, controlled by the film thickness. The ultrasonic thickness measurement of a steel plate with the probe fully immersed in molten zinc at 450°C was demonstrated using ultrasonic plane waves. For imaging purposes, the probing end of the steel buffer rod was machined into a semispherical concave shape to form an ultrasonic lens and achieve high spatial resolution with focused ultrasound in liquids. Ultrasonic surface and subsurface imaging using a mechanical raster scan of the focused probe in silicone oil at 200°C was also carried out. The importance of the signal-to-noise ratio (SNR) in the pulse-echo measurement is discussed. |
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Date de publication | 2006-06-01 |
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Dans | |
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Langue | anglais |
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Publications évaluées par des pairs | Oui |
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Numéro du CNRC | NRCC 46954 |
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Numéro NPARC | 15861566 |
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Exporter la notice | Exporter en format RIS |
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Signaler une correction | Signaler une correction (s'ouvre dans un nouvel onglet) |
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Identificateur de l’enregistrement | 14a21372-5427-4cd5-b0f2-1933b15e2605 |
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Enregistrement créé | 2010-07-23 |
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Enregistrement modifié | 2020-04-22 |
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