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Development of backing piezoelectric micromachined ultrasonic transducer (B...
Archive ouverte: Communication dans un congrès
Wang, Xu-Bo | 2021-09-11
International audience. To improve the problem of narrow bandwidth and large crosstalk in high-frequency PMUT array, a PMUT device with a damping backing structure (B-PMUT) is proposed and realized. The device is a ...
... PDMS, Backing, Crosstalk I. INTRODUCTION Ultrasonic imaging is a cost-effective and harmless detection method [1], where ultrasonic array transducers...
... (PDMS), which makes the B-PMUT different from the conventional PMUT (C-PMUT) device. The depth of the backing structure is 330 μm (d1 =300 μm, d2 =30...
... PDMS backing structure is noted with a red dash line box. The PDMS material is perfectly filled in the cavity and joints closely with the vibration...
Consultable en ligne -
Fast Capture, Collection, and Targeted Transfer of Underwater Gas Bubbles U...
Archive ouverte: Article de revue
Tahzibi, Haniyeh | 2022-10-05
International audience. Transportation of bubbles in liquids in a controlled fashion is a challenging task and an important subject in numerous industrial processes, including elimination of corrosive gas bubbles in...
Consultable en ligne -
Development of broadband high-frequency piezoelectric micromachined ultraso...
Archive ouverte: Article de revue
Wang, Xu-Bo | 2021
International audience. Piezoelectric micromachined ultrasonic transducers (PMUT) are promising elements to fabricate a two-dimensional (2D) array with a pitch small enough (approximately half wavelength) to form an...
... PDMS backing. (c) Cross-sectional SEM image of the element with PDMS filling. 2.2. Experimental Setup To verify the performance of the PDMS backing,...
... PDMS backing. (c) Cross-sectional SEM image of the element with PDMS filling. 2.2. Experimental Setup To verify the performance of the PDMS backing,...
... PDMS backing (C-PMUT) and (b) B-PMUT. 3.2. Attenuation of PDMS Backing The PDMS backing should be long enough to absorb the reflection wave from the...
Consultable en ligne
