Study on the multifrequency Langevin ultrasonic transducer
References (8)
Macrosonics in industry: 3. Ultrasonic cleaning
Ultrasonics
(1974)Noise generation in bench-top ultrasonic cleaners
Ultrasonics
(1988)Qualitative characterization of ultrasound reactors for heterogeneous sonochemistry
Ultrasonics
(1987)- et al.
Wide bandwidth, constant beamwidth acoustic projectors: a simplified design procedure
Ultrasonics
(1989)
Cited by (24)
Driving an inductive piezoelectric transducer with class E inverter
2017, Sensors and Actuators, A: PhysicalCitation Excerpt :Langevin piezoelectric transducers are among the most common transducers used in ultrasonic machining and cleaning, underwater acoustics, ultrasonic motors and sonochemistry [1–4]. Conventionally, Langevin transducers are driven at their resonance frequencies, because of which the driving circuits are designed according to the resonance impedance of the transducers, which electrically appears as a resistive load [5–8]. However, the resonance frequency driving method neglects the loss reduction which occurs due to the coupling of the different piezoelectric loss factors [9].
A new topological structure for the Langevin-type ultrasonic transducer
2017, UltrasonicsCitation Excerpt :Peshkovsky et al. summarized the design principles of the ultrasonic horn based on his “five-element” theory and invented the bar-bell horn which has a large gain factor [4–6]. S. Lin analyzed the relationship between the vibration amplitude and ultrasonic transducer’s geometrical dimensions and proposed the optimized methods to improve the radiation power [15–18]. Recently, J.A. Gallego-Juárez et al. proposed and investigated a radiator structure with properly designed slots for acquiring high acoustic power capacity, high efficiency and controlled radiation patterns [19–22].
Some properties of horn equation model of ultrasonic system vibration and of transfer matrix and equivalent circuit methods of its solution
2014, UltrasonicsCitation Excerpt :An alternative approach is the impedance matrix method (IMM) (impedance matrix is also called stiffness matrix) [7,11]. Equivalent circuit method (ECM), due to Mason (according to [12]), is also used (e.g., [13–15]). There is a broad correspondence between the properties of transfer matrices and impedance ones [7], with an implication of their interchangeability.
Investigations of the barbell ultrasonic transducer operated in the full-wave vibrational mode
2012, UltrasonicsCitation Excerpt :So, in the design of langevin transducer, the half-wave transducer is usually divided into two quarter-wave vibrators by the node-plane. If the resonance frequency equations of the two quarter-wave vibrators were derived, the resonance frequency of the half-wave transducer can be obtained [9,18–20]. Sometimes, in order to obtain high power, two sets of piezoelectric ceramic elements which are separated by a middle metal are used in a transducer.
Dynamic modeling of thickness-mode piezoelectric transducer using the block diagram approach
2011, UltrasonicsCitation Excerpt :To characterize the electromechanical interaction, a mass-spring-damper (MSD) model, with an inertial force converted from the piezoelectric effect, was investigated [8,9]. In addition, a two-port network representation was developed to express the functional relationship between electrical impedance and mechanical impedance [10] such that the equivalent impedance of a sandwich-structure piezoelectric transducer can be determined by the two-port network model [11–13]. The block diagram technique developed in the control domain is one of the methods that can be employed to explicitly illustrate the electromechanical interaction of piezoelectric transducers and to analyze the characteristics of a feedback system such as stability and sensitivity [14–17].