{"title":"Impulse response-based actuation of ultrasound transducer for enhanced axial resolution in A-mode ultrasound scanner","authors":"Dae-Il Kim , Se-Hwan Yang , Ji-Yong Um","doi":"10.1016/j.sna.2025.117082","DOIUrl":null,"url":null,"abstract":"<div><div>This work proposes a novel method for adaptively acquiring the impulse response of an ultrasound scanner and using it to drive the transducer, thereby optimizing the pulse-echo response. Specifically, this work introduces a new technique for obtaining the equivalent impulse response of the entire system, including the ultrasound transmitter (TX) circuit, transducer, medium, and receiver (RX) circuit. Compared to conventional transducer actuation using pulse waves or sine waves, the proposed method achieves efficient acoustic energy transmission and reception by fully utilizing the system bandwidth through impulse response-based transducer re-actuation. The proposed impulse response acquisition algorithm and transducer actuation method were implemented on a field-programmable gate array (FPGA) device and validated using an A-mode ultrasound scanner circuit. Experimental results demonstrated that, under the same TX power condition, the axial resolution of the pulse-echo response was improved by at least 1.42 times compared to conventional pulse sine-wave, bipolar, and unipolar actuation methods.</div></div>","PeriodicalId":21689,"journal":{"name":"Sensors and Actuators A-physical","volume":"395 ","pages":"Article 117082"},"PeriodicalIF":4.9000,"publicationDate":"2025-09-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Sensors and Actuators A-physical","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S092442472500888X","RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"ENGINEERING, ELECTRICAL & ELECTRONIC","Score":null,"Total":0}
引用次数: 0
Abstract
This work proposes a novel method for adaptively acquiring the impulse response of an ultrasound scanner and using it to drive the transducer, thereby optimizing the pulse-echo response. Specifically, this work introduces a new technique for obtaining the equivalent impulse response of the entire system, including the ultrasound transmitter (TX) circuit, transducer, medium, and receiver (RX) circuit. Compared to conventional transducer actuation using pulse waves or sine waves, the proposed method achieves efficient acoustic energy transmission and reception by fully utilizing the system bandwidth through impulse response-based transducer re-actuation. The proposed impulse response acquisition algorithm and transducer actuation method were implemented on a field-programmable gate array (FPGA) device and validated using an A-mode ultrasound scanner circuit. Experimental results demonstrated that, under the same TX power condition, the axial resolution of the pulse-echo response was improved by at least 1.42 times compared to conventional pulse sine-wave, bipolar, and unipolar actuation methods.
期刊介绍:
Sensors and Actuators A: Physical brings together multidisciplinary interests in one journal entirely devoted to disseminating information on all aspects of research and development of solid-state devices for transducing physical signals. Sensors and Actuators A: Physical regularly publishes original papers, letters to the Editors and from time to time invited review articles within the following device areas:
• Fundamentals and Physics, such as: classification of effects, physical effects, measurement theory, modelling of sensors, measurement standards, measurement errors, units and constants, time and frequency measurement. Modeling papers should bring new modeling techniques to the field and be supported by experimental results.
• Materials and their Processing, such as: piezoelectric materials, polymers, metal oxides, III-V and II-VI semiconductors, thick and thin films, optical glass fibres, amorphous, polycrystalline and monocrystalline silicon.
• Optoelectronic sensors, such as: photovoltaic diodes, photoconductors, photodiodes, phototransistors, positron-sensitive photodetectors, optoisolators, photodiode arrays, charge-coupled devices, light-emitting diodes, injection lasers and liquid-crystal displays.
• Mechanical sensors, such as: metallic, thin-film and semiconductor strain gauges, diffused silicon pressure sensors, silicon accelerometers, solid-state displacement transducers, piezo junction devices, piezoelectric field-effect transducers (PiFETs), tunnel-diode strain sensors, surface acoustic wave devices, silicon micromechanical switches, solid-state flow meters and electronic flow controllers.
Etc...