A new design for air transducers

Khuri-Yakub, B.T.; Kim, J.H.; Chou, C.-H.; Parent, P.; Kino, G. S.

doi:10.1109/ultsym.1988.49428

Cited by 21 publications

(10 citation statements)

References 3 publications

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“…We [1] and other workers [2] reported in the past on the use of silicone rubber (RTV615), and air bubbles loaded with RTV615 as a matching material for PZT ceramics. We also reported on the potential of silica aerogels as a matching layer material [3].…”

Section: Introductionmentioning

confidence: 93%

Novel High-Frequency Air Transducers

Schiller

Hsieh

Chou

et al. 1990

Review of Progress in Quantitative Nondestructive Evaluation

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Section: Introductionmentioning

confidence: 93%

Novel High-Frequency Air Transducers

Schiller

Hsieh

Chou

et al. 1990

Review of Progress in Quantitative Nondestructive Evaluation

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“…The second matching layer (close to air) is membrane [5], and an intermediate λ/4 matching layer is put in between the piezoelectric material and the membrane which was proposed in [6]. This layer is made of epoxy resin which 978-1-4673-4816-4/12/$31.00 ©2012 IEEE can improve the frequency bandwidth and relax the frequency tuning requirements.…”

Section: Principles and Designmentioning

confidence: 99%

A study on airborne piezoelectric transducer for geological simulation

Zhou

Chen

2012

2012 Symposium on Piezoelectricity, Acoustic Waves, and Device Applications (SPAWDA)

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In this work, we report a new application of airborne piezoelectric transducer for ultrasonic seismic physical modeling technology. In the lab, we can obtain the internal structure of geologic model by analyzing the received echo signals which were launched by airborne ultrasonic transducer. Here we use different piezoelectric materials and matching layers to design and manufacture airborne transducers. The piezoelectric materials are ferroelectric single crystals (PMNT), 1-3 composites with volume fraction of 60% and 15% respectively. Using membranes as matching layers can improve more than 20 dB in two-way insertion loss which is a good solution to acoustic match of airborne transducers. The experiments show that the airborne transducer made with 1-3 composites with volume fraction of 60% has the best bandwidth and sensitivity compared to the other two. The characteristics of its high sensitivity and broadband are very suitable for airborne transducers in geological simulation field.

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“…Khuri-Yakub, et al [1] present a design for a highly efficient foil transducer. Suzuki, et al [2] developed a silicon-based electrostatic device, also for robotic imaging applications, which operated in the range of 100 to 200 kHz and included a seven-element array.…”

Section: Introductionmentioning

confidence: 99%