Design and Fabrication of Piezoelectric Transducers Separating Incident and Reflected Wave

Kwon, Soo Won; Pyun, Joo Young; Kim, Young Hun; Choi, Won Young; Park, Kwan Kyu

doi:10.7779/jksnt.2019.39.1.29

Cited by 1 publication

(3 citation statements)

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“…To overcome this difficulty and to facilitate the use of a time-delay signal separation method, the present study considered an acoustic absorption system with two receiving sensors [13,14]. Recently, researchers have focused on an acoustic absorber, called smart skin, installed on the surface of a variety of underwater control system [15,16]. The acoustic absorber mimics a smart sensor attached to the surface of human skin.…”

Section: System Designmentioning

confidence: 99%

“…where T Pro (ω) is the transmitting sensitivity of the projector, d is the distance between the sensor and the projector, and V Output and V Input are the voltage signal received by the PVDF and the source signal of the projector, respectively. In the simulation, the equivalent circuit model shown in Figure 4 was used [15,16]. The equivalent circuit model can be used to analyze a multilayer model and require less time compared to the finite element method.…”

Section: Transmitting and Receiving Sensitivities Of The Multilayer Amentioning

confidence: 99%

“…In the simulation, the equivalent circuit model shown in Figure 4 was used [15,16]. The equivalent circuit model can be used to analyze a multilayer model and require less time compared to the finite element method.…”

Section: Transmitting and Receiving Sensitivities Of The Multilayer Amentioning

confidence: 99%

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Application of Adaptive Wave Cancellation Underwater to a Piezoelectric-Material-Based Multilayer Sensor

Lee

Park

et al. 2019

Sensors

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This paper concerns the use of adaptive wave cancellation in a new multilayer smart skin sensor to attenuate the primary low-frequency noise underwater. The proposed multilayered system is designed with a piezoelectric actuator (Pb(In1/2Nb1/2)O3–Pb(Mg1/3Nb2/3)O3–PbTiO3 composite) and two layers of polyvinylidene fluoride to accelerate wave absorption. Furthermore, the use of a combination of an adaptive control scheme and a time-delay signal separation method has the potential to provide the proposed absorber system with a wave cancellation capability and thereby enable the absorber system to respond to environmental changes underwater. The use of smart piezoelectric materials and an adaptive control approach enables the absorber system to achieve the high attenuation level of the reflected waves, unlike typical absorber systems based on active noise control. Echo reduction experiments showed that the proposed piezoelectric-based multilayer sensor with an adaptive controller could attenuate reflected wave signals effectively.

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Section: System Designmentioning

confidence: 99%

Section: Transmitting and Receiving Sensitivities Of The Multilayer Amentioning

confidence: 99%

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Application of Adaptive Wave Cancellation Underwater to a Piezoelectric-Material-Based Multilayer Sensor

Lee

Park

et al. 2019

Sensors

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Design and Fabrication of Piezoelectric Transducers Separating Incident and Reflected Wave

Cited by 1 publication

References 0 publications

Application of Adaptive Wave Cancellation Underwater to a Piezoelectric-Material-Based Multilayer Sensor

Application of Adaptive Wave Cancellation Underwater to a Piezoelectric-Material-Based Multilayer Sensor

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