ultrasonic transducer energy storage method
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An energy-efficient method for direct-contact ultrasonic cloth …
Compared with continuous transducer driving, the new transducer driving method was more energy-efficient, with an EF 100–20% about 7–16 times that of continuous transducer driving. Larger EF 100–20% values could be obtained by operating the transducer at higher modulating frequencies and shorter duty cycles.
Combined effects of nanoparticles and ultrasonic field on thermal …
To further improve the performance of thermal energy storage (TES) system with phase change materials (PCMs), this paper proposed a novel method, i.e. …
Recent Advancements in Ultrasound Transducer: From Material …
Our group built a 50 MHz f-number of 0.9 ultrasound transducer, which can manipulate a 10 μm microparticle in distilled water []. Chen et al. built a 60 MHz SBAT based on a focused ring ultrasonic transducer, which can levitate and manipulate microparticles7].
Micromachines | Free Full-Text | Modeling a Fluid-Coupled Single Piezoelectric Micromachined Ultrasonic Transducer Using the Finite Difference Method
A complete model was developed to simulate the behavior of a circular clamped axisymmetric fluid-coupled Piezoelectric Micromachined Ultrasonic Transducer (PMUT). Combining Finite Difference and Boundary Element Matrix (FD-BEM), this model is based on the discretization of the partial differential equation used to translate the …
Highly-efficient microfluidic ultrasonic transducers assisted gDNA …
(c) Interchange order between the magnet movement method and the ultrasonic system in each stage ( : ultrasonic system, ×: magnet movement method). (d) The amount of extracted gDNA quantity per blood volume ratio (μg/ml) and (e) gel electrophoresis image of PCR amplified product from extracted gDNA with interchange …
An AlScN Piezoelectric Micromechanical Ultrasonic Transducer …
Ultrasonic wireless power transfer technology (UWPT) represents a key technology employed for energizing implantable medical devices (IMDs). In recent years, aluminum nitride (AlN) has gained significant attention due to its biocompatibility and compatibility with complementary metal-oxide-semiconductor (CMOS) technology. In the …
The analysis of ultrasonic transducers using the finite element method …
An ultrasonic transducer is a device that converts energy into vibrations in the ultrasonic frequency range. It is widely applied in many fields. Using finite element analysis for kinetic analysis ...
(PDF) A study of the conversion of ultrasonic energy and their transducers …
This paper essay offers a survey of research on interconvertibility of the conversion of ultrasonic energy with other energy, and their transducers, the conversion materials. Furthermore, it ...
Development and Evaluation of an Ultrasonic Humidifier to Control Humidity in a Cold Storage …
The ultrasonic transducer unit contained ten transducers installed at the central position of the humidifier reservoir bottom. The transducers'' ultrasonic frequency was 2600 kHz, the resonance impedance was 2 Ω, and the operating water temperature of the transducer unit range was 0 to 50 °C.
Recent Development and Perspectives of Optimization Design Methods for Piezoelectric Ultrasonic Transducers …
A piezoelectric ultrasonic transducer (PUT) is widely used in nondestructive testing, medical imaging, and particle manipulation, etc., and the performance of the PUT determines its functional performance and effectiveness in these applications. The optimization ...
Modelling of ultrasonic method for measuring gas holdup of Oil …
In the ultrasonic-optical measurement system, the intrinsic frequency of the transmissive ultrasonic probe is 2 MHz, and the probe crystal diameter is 6 mm. The simulation model is shown in Fig. 2.The three-dimensional meshed model is shown in Fig. 2 (a) and the three-dimensional meshed model including gas bubbles is shown in Fig. 2 (b).
Underwater Wireless High-Efficiency Energy Transmission Method Based on the Ultrasonic Transducer …
According to the theory of acoustic-electric conversion channel of the underwater ultrasonic wireless energy transmission system, the characteristics of ultrasonic waves are analyzed, such as strong penetration characteristics, intense focus, high transmission
An ultrasound-induced wireless power supply based on AlN …
ultrasonic transducer (AlN-PMUT) array with parylene sealing is designed and fabricated as the wireless power receiver. A 3-stage Villard voltage multiplier is designed and …
Micromachines | Free Full-Text | Particle Swarm Optimization Algorithm-Based Design Method for Ultrasonic Transducers …
In order to improve the fabrication efficiency and performance of an ultrasonic transducer (UT), a particle swarm optimization (PSO) algorithm-based design method was established and combined with an electrically equivalent circuit model. The relationship between the design and performance parameters of the UT is described …
Sensors | Free Full-Text | Multipoint Energy-Balanced Laser-Ultrasonic Transducer …
This study proposes a novel multipoint transducer system by utilizing the single-mode-multimode-thin-cladding fiber (SMTC) structure. This structure leverages the disparity in mode field diameter between the multimode fiber (MMF) and thin-cladding fiber (TCF) to generate high-amplitude ultrasonic signals safely and efficiently. The fabricated …
Ultrasound-Assisted Preparation Methods of Nanoparticles for Energy-Related Applications …
Ultrasound (US) technology is already into the research field providing a powerful tool of producing nanomaterials or being implicated in decoration procedures of catalyst supports for energy applications and material production. Toward this concept, low or/and high-frequency USs are used for the production of nanoparticles, the decoration of …
A flexible, stretchable system for simultaneous acoustic energy transfer and communication …
Then, in vivo, the AECD ultrasonic transducer, composed of piezoelectric material, accepts ultrasound and converts it to electrical energy. Because the ultrasonic transducer produces only AC, however, the current must pass through the AECD rectifier module to be transformed to DC.
An ultrasound-induced wireless power supply based on AlN …
Toward implantable applications, this paper presents an ultrasound-induced wireless power supply based on AlN piezoelectric micromachined ultrasonic …
Engineering Proceedings | Free Full-Text | Study on Heat Generation at Defects in Sonic-IR Method Using Ultrasonic …
Sonic-IR, which detects defects based on the temperature rise due to frictional heating at the defect faces under ultrasonic excitation, has an advantage in the detection of closed defects. However, in the conventional sonic-IR method, an acoustic energy is directly input from an ultrasonic transducer to the test object via an ultrasonic horn, which may give …
Research on sound power measurement of multi-element ultrasonic focusing transducer based on cross-spectrum method …
In this paper, aiming at the problem that a multi-array focused ultrasonic transducer working in a high power range has a nonlinear influence on the measurement accuracy, a study of acoustic power measurement based on the near field cross-spectrum method was carried out. The focused acoustic field o …
Multi-point fiber optic laser-ultrasonic transducer based on long …
In theory, by fusion splicing multiple fiber-optic ultrasonic transducers onto a single fiber optic link, multi-point ultrasonic excitation can be achieved. Fiber-optic …
Power ultrasound and its applications: A state-of-the-art review
This paper presents the current state of ultrasonic transducers of magnetostrictiv type and piezoelectric type as well as applications of power ultrasound in various industrial fields including chemical reactions, drying/dehydration, welding, extraction, heat transfer enhancement, de-ice, enhanced oil recovery, droplet atomization, cleaning …
Sensors | Free Full-Text | Acoustic Imaging Method for Gas Leak Detection and Localization Using Virtual Ultrasonic …
An acoustic imaging method for detecting and locating gas leaks based on a virtual ultrasonic sensor array is proposed and experimentally demonstrated. A scanning sensor array of only two sensors is used to collect the acoustic signals generated by the leakage hole. The matrix of the leakage signal is processed by the cross-power spectrum …
Multiphysics Modeling and Analysis of Sc-Doped AlN Thin Film Based Piezoelectric Micromachined Ultrasonic Transducer by Finite Element Method
Ultrasonic transducers have been widely used in medical imaging, nondestructive testing, rangefinders, gesture recognition, fingerprint systems, etc. [1,2,3,4].A well-established technology in the medical imaging market is …
Ultrasonic Energy Transmission and Conversion Using a 2-D …
Abstract: This letter reports a novel ultrasonic-based method to power biosensors. Compared with commonly used radio-frequency radiation methods, …
Multi-scale experimental analysis on the coupled effects of ultrasonic field and magnetic field on the melting and energy storage …
The complete melting time, energy storage capacity, and energy storage efficiency for HNEPCM subjected to different ultrasonic powers are compared in Fig. 9. The melting time is 96 min, 203 min, 96 min, 76 min, and 63 min for pure PCM with 48w ultrasonic field, HNEPCM with 0w ultrasonic field, HNEPCM with 16w ultrasonic field, …
Improving performances of array ultrasonic transducer by alternating current poling method …
3 MHz linear array transducer based on PZT/epoxy piezoelectric composite. • Design and fabrication of linear array transducers with different polarization methods. Currently, ultrasonic transducers made of piezoelectric materials are widely applied in clinical diagnostic imaging technology. ...
Ultrasound-assisted fabrication of Ti3C2Tx MXene toward enhanced energy storage …
Regarding the CV of the sample in absence of ultrasound, no well-defined trails for typical behaviors of the energy storage materials were observed, and the specific capacitance of the 8 h un-sonicated sample (Fig. 5 (a)) at …
Micromachines | Free Full-Text | Increasing …
Ultrasonic transducers are the basic core component of diagnostic imaging devices, wherein the piezoelectric materials are the active element of transducers. Recent studies showed that the …
Ultrasonic liquid level detection method based on the variation of reflected energy …
DOI: 10.1016/j.ultras.2024.107290 Corpus ID: 268285403 Ultrasonic liquid level detection method based on the variation of reflected energy on the inner wall of a container. A high-precision, non-contact, flexible capacitive liquid level sensor is proposed, aiming to ...
A Review of UltraHigh Frequency Ultrasonic Transducers
In 1–10 MHz, the ultrasonic transducer of this frequency band is usually used in the field of large-size parts non-destructive testing. Up to 100 MHz, medical high-frequency ultrasound is roughly distributed in this frequency range. When it is greater than 100 MHz, it is usually collectively referred to as UHF.
State-of-charge estimation of lithium-ion batteries based on ultrasonic …
Abstract. In order to characterize the state of charge of the lithium battery from the internal material properties of the lithium battery, this paper proposes a method of estimating the state of charge of the lithium battery based on ultrasonic non-destructive testing. First, this paper uses the ultrasonic flaw detector and other equipment to ...
Method, device and storage medium for activating ultrasonic transducer …
A method, device and storage medium for activating an ultrasonic transducer array. The method comprises: receiving a request input by a user to use a single ultrasonic transducer array to apply an ultrasound therapy to a tissue to be treated (S101); and ...
A flexible, stretchable system for simultaneous acoustic energy …
Then, in vivo, the AECD ultrasonic transducer, composed of piezoelectric material, accepts ultrasound and converts it to electrical energy. Because the ultrasonic …