IEEE Sensors Letters最新文献_第2页

Low-Frequency Strain Testbed for DAS Performance Characterization DAS性能表征的低频应变试验台

IF 2.2

IEEE Sensors Letters Pub Date : 2025-09-09 DOI: 10.1109/LSENS.2025.3607642

Guilherme Heim Weber;Emmanuell Scolimoski;Danilo Fernandes Gomes;Beatriz Brusamarello;Eduardo Henrique Dureck;Daniel Rodrigues Pipa;Jean Carlos Cardozo da Silva;Manoel Feliciano da Silva Junior;Sérgio Taveira de Camargo Júnior;Cicero Martelli

{"title":"Low-Frequency Strain Testbed for DAS Performance Characterization","authors":"Guilherme Heim Weber;Emmanuell Scolimoski;Danilo Fernandes Gomes;Beatriz Brusamarello;Eduardo Henrique Dureck;Daniel Rodrigues Pipa;Jean Carlos Cardozo da Silva;Manoel Feliciano da Silva Junior;Sérgio Taveira de Camargo Júnior;Cicero Martelli","doi":"10.1109/LSENS.2025.3607642","DOIUrl":"https://doi.org/10.1109/LSENS.2025.3607642","url":null,"abstract":"Distributed acoustic sensing (DAS) systems were originally developed to measure high-frequency dynamic strain signals induced by sound and vibration. Recently, however, their potential for low-frequency applications has received considerable attention. In the petroleum industry, efforts are underway, led by SEAFOM, to establish recommended practices for characterizing DAS strain responses in oil and gas environments. This includes the development of a consistent methodology for evaluating DAS performance. This letter presents a mechanical approach to characterize the low-frequency strain measurement performance of DAS. The setup uses pulleys and a microstepper motor to apply controlled mechanical strain to optical fibers at varying velocities and intensities, resulting in high levels of strain at very low frequencies. Experimental results demonstrate the generation of cyclic ramp strain stimuli with amplitudes up to 4 mϵ over a 33-min cycle, which can be easily extended. DAS measurements revealed nonuniform strain distributions along the fiber, primarily influenced by friction and slip effects associated with the fiber coating and pulley bearing characteristics. These findings improve the reliability and interpretability of low-frequency DAS measurements in complex offshore environments.","PeriodicalId":13014,"journal":{"name":"IEEE Sensors Letters","volume":"9 10","pages":"1-4"},"PeriodicalIF":2.2,"publicationDate":"2025-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145073387","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Dual-Mode Detection of Urinary Chemokine and Ion Imbalance of BPS/IC Patients Toward Therapeutic Efficacy Assessment BPS/IC患者尿趋化因子及离子失衡双模检测对疗效评价的意义

IF 2.2

IEEE Sensors Letters Pub Date : 2025-09-09 DOI: 10.1109/LSENS.2025.3607871

Tanzila Noushin;Jinwon Jeong;Muhammad Luqman Haider;Yun Ting Hsia;Jeong Bong Lee

{"title":"Dual-Mode Detection of Urinary Chemokine and Ion Imbalance of BPS/IC Patients Toward Therapeutic Efficacy Assessment","authors":"Tanzila Noushin;Jinwon Jeong;Muhammad Luqman Haider;Yun Ting Hsia;Jeong Bong Lee","doi":"10.1109/LSENS.2025.3607871","DOIUrl":"https://doi.org/10.1109/LSENS.2025.3607871","url":null,"abstract":"Bladder pain syndrome/interstitial cystitis (BPS/IC) is a chronic urological condition characterized by pelvic pain and urinary urgency, often misdiagnosed due to symptom overlap with other analogous disorders. The absence of specific, noninvasive biomarkers complicates its diagnosis and hinders effective monitoring of disease progression and therapeutic response. C-C motif chemokine ligand 5 (CCL5) is recognized as a potential inflammatory biomarker for BPS/IC, while urinary potassium (K+) levels reflect epithelial barrier dysfunction. In this letter, we present a novel screen-printed, low-cost, and rapid electrochemical sensor for simultaneous point-of-care detection of CCL5 and K+ in urine samples. The sensor employs immunosensing and ion-selective membrane strategies to achieve excellent sensitivity, selectivity, and operational stability, having a low detection limit of 60 fg/mL and 80 pM for CCL5 and K+ ion sensing electrodes. The dual-detection approach offers valuable insights into both inflammatory status and urothelial integrity, holds promise for early diagnosis and therapeutic strategy with improved patient stratification, and real-time personalized monitoring in BPS/IC.","PeriodicalId":13014,"journal":{"name":"IEEE Sensors Letters","volume":"9 10","pages":"1-4"},"PeriodicalIF":2.2,"publicationDate":"2025-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145110305","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Methods for Beamforming Using Structural Sensors on an Elastic Panel 弹性板上结构传感器的波束形成方法

IF 2.2

IEEE Sensors Letters Pub Date : 2025-09-08 DOI: 10.1109/LSENS.2025.3607253

Jenna Rutowski;Tre DiPassio;Benjamin R. Thompson;Mark F. Bocko;Michael C. Heilemann

{"title":"Methods for Beamforming Using Structural Sensors on an Elastic Panel","authors":"Jenna Rutowski;Tre DiPassio;Benjamin R. Thompson;Mark F. Bocko;Michael C. Heilemann","doi":"10.1109/LSENS.2025.3607253","DOIUrl":"https://doi.org/10.1109/LSENS.2025.3607253","url":null,"abstract":"The design of an acoustic beamforming microphone is demonstrated using an array of vibration sensors coupled to an elastic plate. The signals recorded by each sensor are mechanically coupled to the bending resonant modes of the plate, which are, in turn, acoustically coupled to the direction and amplitude of the incident pressure wave. A filter is designed for each sensor to tune the magnitude and phase of each recorded signal so that a target directional acoustic response is achieved when the filtered signals are summed. Experimental results demonstrate that a linear array of structural sensors achieve an increased directivity of nearly 6 dB at low frequencies compared to a conventional microphone array, while being able to beamform in both elevation and azimuth. Although the resonances of the plate introduce reverberation into the recorded signal that affect speech intelligibility, the surface beamformer reduced the word-error-rate of a transcribed speech signal from 134.8% to 24.7% in the presence of a babble interfering source that was spatially separated from the target speech source by <inline-formula><tex-math>${{60}{^circ }}$</tex-math></inline-formula>.","PeriodicalId":13014,"journal":{"name":"IEEE Sensors Letters","volume":"9 10","pages":"1-4"},"PeriodicalIF":2.2,"publicationDate":"2025-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145110257","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Integrated Optoelectronic Refractometer Based on ZnO Photodetector With EHD-Printed Electrodes and PDMS Waveguide 基于ehd打印电极和PDMS波导的ZnO光电探测器集成光电折光计

IF 2.2

IEEE Sensors Letters Pub Date : 2025-09-08 DOI: 10.1109/LSENS.2025.3607442

Hiyary Villena;Jakes Herrera;Ignacio R. Matias;Jesús M. Corres