Micro-electro-mechanical-system based capacitive ultrasonic transducer as an efficient immersion sensor
Sign Up to like & getrecommendations! Published in 2019 at "Microsystem Technologies"
DOI: 10.1007/s00542-019-04384-5
Abstract: In this paper we have analyzed the influence of the membrane inherent residual stress along with its Young’s modulus for evaluating the characteristics of a capacitive micromachined ultrasonic transducer (CMUT) for medical imaging and sensor… read more here.
Keywords: mechanical system; micro electro; electro mechanical; ultrasonic transducer ... See more keywords
Fabrication and properties of the thickness mode ultrasonic transducer based on 0.15Pb(Mg1/3Nb2/3)O3-0.38PbHfO3-0.47PbTiO3 piezoelectric ceramics
Sign Up to like & getrecommendations! Published in 2020 at "Ceramics International"
DOI: 10.1016/j.ceramint.2020.01.228
Abstract: Abstract In this paper, the 0.15Pb(Mg1/3Nb2/3)O3-0.38PbHfO3-0.47PbTiO3 ternary piezoelectric ceramic fabricated by the partial oxalate method that exhibits superior electrical properties (d33 = 447 pC/N and kt = 56.9%) and excellent thermal stability of the piezoelectric properties below TC was studied.… read more here.
Keywords: 3nb2 38pbhfo3; 38pbhfo3 47pbtio3; mg1 3nb2; 15pb mg1 ... See more keywords
0.36BiScO3-0.64PbTiO3 piezoelectric ceramics for high temperature ultrasonic transducer applications
Sign Up to like & getrecommendations! Published in 2018 at "Journal of Alloys and Compounds"
DOI: 10.1016/j.jallcom.2018.01.393
Abstract: Abstract 0.36BiScO3-0.64PbTiO3 (0.36BS-0.64PT) piezoelectric ceramics with high Curie temperature and good piezoelectric properties comparable to commercial PZT ceramics were fabricated through traditional solid-state reaction method. Microstructural morphology, phase transition, and electrical properties of 0.36BS-0.64PT ceramics… read more here.
Keywords: temperature; 36bisco3 64pbtio3; 36bs 64pt; high temperature ... See more keywords
Research and validation of design principles for PVDF wideband ultrasonic transducers based on an equivalent circuit model
Sign Up to like & getrecommendations! Published in 2019 at "Measurement"
DOI: 10.1016/j.measurement.2019.04.050
Abstract: Abstract With the increasing use of ultrasonic measurement technology in many fields, the demand for the wideband ultrasonic transducers is also growing. In order to design a wideband piezoelectric ultrasonic transducer, the design principles of… read more here.
Keywords: ultrasonic transducer; model; ultrasonic transducers; piezoelectric ultrasonic ... See more keywords
High-performance potassium sodium niobate piezoceramics for ultrasonic transducer
Sign Up to like & getrecommendations! Published in 2020 at "Nano Energy"
DOI: 10.1016/j.nanoen.2020.104559
Abstract: Abstract Ultrasonic transducers can be used as medical diagnostic imaging and nondestructive testing. This work presents phase structure engineered high-performance potassium sodium niobate [(K,Na)NbO3, KNN]-based ceramics and its potential application on ultrasonic transducer. A connection… read more here.
Keywords: performance potassium; ultrasonic transducer; high performance; potassium sodium ... See more keywords
A new topological structure for the Langevin‐type ultrasonic transducer
Sign Up to like & getrecommendations! Published in 2017 at "Ultrasonics"
DOI: 10.1016/j.ultras.2016.11.008
Abstract: HighlightsA method to substantially improve the performance of an ultrasonic transducer is proposed.The method is based on a novel structure design of the terminal mass.The vibration, temperature rise and energy efficiency have been improved. ABSTRACT… read more here.
Keywords: structure langevin; topological structure; ultrasonic transducer; transducer ... See more keywords
Modal analysis and nonlinear characterization of an airborne power ultrasonic transducer with rectangular plate radiator
Sign Up to like & getrecommendations! Published in 2018 at "Ultrasonics"
DOI: 10.1016/j.ultras.2017.09.017
Abstract: HIGHLIGHTSAirborne stepped plate radiators show nonlinearities when applying power.A flat rectangular plate ultrasonic transducer without modal interactions expected.Highly resonant airborne ultrasonic system, low heating when operating at high power.Negligible frequency shifts after frequency sweeps up… read more here.
Keywords: power; plate; radiator; power ultrasonic ... See more keywords
Planar ultrasonic transducer based on a metasurface piezoelectric ring array for subwavelength acoustic focusing in water
Sign Up to like & getrecommendations! Published in 2022 at "Scientific Reports"
DOI: 10.1038/s41598-022-05547-7
Abstract: The development of a new ultrasonic transducer capable of improved focusing performance has become a necessity to overcome the limitations of conventional ultrasonic transducer technology. In this study, we designed and optimized a metasurface piezoelectric… read more here.
Keywords: metasurface piezoelectric; piezoelectric ring; ultrasonic transducer; planar ultrasonic ... See more keywords
A 2D dual-mode composite ultrasonic transducer excited by a single piezoceramic stack
Sign Up to like & getrecommendations! Published in 2019 at "Smart Materials and Structures"
DOI: 10.1088/1361-665x/aaf275
Abstract: A 2D composite ultrasonic transducer with two resonance modes is proposed by using a central coupling metal block, a piezoceramic stack and four outer metal cylinders. With the introduction of the dual-mode equivalent mechanical coupling… read more here.
Keywords: transducer; piezoceramic stack; ultrasonic transducer; composite ultrasonic ... See more keywords
Piezoelectric Micromachined Ultrasonic Transducer Array-Based Electronic Stethoscope for Internet of Medical Things
Sign Up to like & getrecommendations! Published in 2022 at "IEEE Internet of Things Journal"
DOI: 10.1109/jiot.2022.3145863
Abstract: A piezoelectric micromachined ultrasonic transducer (PMUT) array-based smart electronic stethoscope is presented for Internet of Medical Things (IoMT). For the first time, an electronic stethoscope based on a high-performance PMUT array is demonstrated to record… read more here.
Keywords: ultrasonic transducer; micromachined ultrasonic; electronic stethoscope; piezoelectric micromachined ... See more keywords
0.36BiScO3–0.64PbTiO3/Epoxy 1–3 Composite for Ultrasonic Transducer Applications
Sign Up to like & getrecommendations! Published in 2018 at "IEEE Sensors Journal"
DOI: 10.1109/jsen.2018.2837868
Abstract: In this paper, 0.36BiScO3–0.64PbTiO3 (BSPT) were chosen as piezoelectric materials because of their higher Curie temperature and comparable piezoelectric properties to commercially available lead-zirconate-titanate polycrystalline ceramics. To get a broader bandwidth, BSPT/epoxy 1–3 composite was… read more here.
Keywords: epoxy composite; 36bisco3 64pbtio3; bspt; ultrasonic transducer ... See more keywords