IEEE Sensors Letters最新文献_第4页

Effect of Garment Attachment Location on the Repeatability of IMU-Based Upper-Limb Motion Measurements 服装附着位置对基于imu的上肢运动测量重复性的影响

IF 2.4

IEEE Sensors Letters Pub Date : 2026-09-01 Epub Date: 2026-08-07 DOI: 10.1109/LSENS.2026.3721914

Jeehyun Song;Robin Oberlé;Sumin Koo

{"title":"Effect of Garment Attachment Location on the Repeatability of IMU-Based Upper-Limb Motion Measurements","authors":"Jeehyun Song;Robin Oberlé;Sumin Koo","doi":"10.1109/LSENS.2026.3721914","DOIUrl":"https://doi.org/10.1109/LSENS.2026.3721914","url":null,"abstract":"Garment-integrated inertial measurement units (IMUs) are widely used for wearable motion sensing, but their measurement repeatability can be affected by relative motion between the garment and the body. This letter investigates how attachment location influences IMU measurement repeatability during repeated upper limb motions. Garment-mounted IMUs were compared with paired body-mounted reference sensors during repeated arm-elevation tasks. Sensors were placed at four upper limb locations—wrist, forearm, upper arm, and shoulder—on a regular-fitting sports jacket. Relative angular deviations were computed using a quaternion-based angular difference metric to compare repeatability across attachment locations. Experimental results from six participants, analyzed using a one-way repeated-measures analysis of variance with attachment location as the within-subject factor, revealed clear location-dependent differences in measurement behavior. The wrist exhibited the lowest trial-to-trial variability, followed by the forearm, whereas the shoulder exhibited the greatest variability despite a smaller mean angular deviation. A significant main effect of location was found for both mean angular deviation [F(3,15) = 7.761, <italic>p =</i> 0.002] and trial-to-trial variability [F(3,15) = 10.467, <italic>p =</i> 0.001]. These results suggest that attachment location is an important factor in the repeatability of garment-integrated IMU measurements under the present experimental conditions and provide preliminary guidance for sensor placement in wearable motion-sensing systems.","PeriodicalId":13014,"journal":{"name":"IEEE Sensors Letters","volume":"10 9","pages":"7004304-7004304"},"PeriodicalIF":2.4,"publicationDate":"2026-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148925540","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}

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A Dual-Path Optical Clip for Bubble-Aware Continuous Monitoring in Surgical Drainage Tubing 用于外科引流管气泡感知连续监测的双路光学夹

IF 2.4

IEEE Sensors Letters Pub Date : 2026-09-01 Epub Date: 2026-08-07 DOI: 10.1109/LSENS.2026.3721660

Chun-Wei Chiu;Po-Chun Kuo;Mou-Wei Chang;Yu-Te Liao;Kun-Ta Wu

{"title":"A Dual-Path Optical Clip for Bubble-Aware Continuous Monitoring in Surgical Drainage Tubing","authors":"Chun-Wei Chiu;Po-Chun Kuo;Mou-Wei Chang;Yu-Te Liao;Kun-Ta Wu","doi":"10.1109/LSENS.2026.3721660","DOIUrl":"https://doi.org/10.1109/LSENS.2026.3721660","url":null,"abstract":"A dual-path optical clip for bubble-aware continuous monitoring in surgical drainage tubing is presented. To address the ambiguity in single-path optical monitoring, reflection and transmission signals were jointly acquired from the same tube segment using a time-multiplexed configuration and processed using a ratio-based redness proxy. In a benchtop filled-tube experiment, both paths consistently tracked the same redness-related trend across stepwise dye infusion stages, with highly correlated stagewise slopes over three runs (Pearson’s <inline-formula><tex-math>$r = 0.98$</tex-math></inline-formula>). The reflection slope response was <inline-formula><tex-math>$2.53 pm 0.20$</tex-math></inline-formula> times larger than the transmission response slope. Across 30 runs with varied flow, dye-infusion, and air-intake, 300 bubble events showed a linear <inline-formula><tex-math>$Delta T$</tex-math></inline-formula>–<inline-formula><tex-math>$Delta R$</tex-math></inline-formula> relationship (slope <inline-formula><tex-math>$approx 3.53$</tex-math></inline-formula> and <inline-formula><tex-math>$r approx 0.985$</tex-math></inline-formula>). As this slope differed from that of a genuine redness change (<inline-formula><tex-math>$approx! 2.53$</tex-math></inline-formula>), the dual-path ratio told a passing bubble from a true color change, with an area under the receiver operating characteristic curve (AUC <inline-formula><tex-math>$approx 0.97$</tex-math></inline-formula>), which single-path amplitude could not (AUC <inline-formula><tex-math>$approx 0.50$</tex-math></inline-formula>). This training-free approach supports interpretable, disturbance-aware benchtop monitoring.","PeriodicalId":13014,"journal":{"name":"IEEE Sensors Letters","volume":"10 9","pages":"6009504-6009504"},"PeriodicalIF":2.4,"publicationDate":"2026-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148925292","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}

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IEEE Sensors Letters Subject Categories for Article Numbering Information 用于物品编号信息的IEEE传感器字母主题分类

IF 2.4

IEEE Sensors Letters Pub Date : 2026-09-01 Epub Date: 2026-09-21 DOI: 10.1109/LSENS.2026.3733575

引用次数: 0

Frequency-Modulation-Based Physical Reservoir Computing With Tunable MEMS Oscillator 基于可调谐MEMS振荡器的调频物理储层计算

IF 2.4

IEEE Sensors Letters Pub Date : 2026-09-01 Epub Date: 2026-08-05 DOI: 10.1109/LSENS.2026.3720575

Yu-Chi Chuang;Chih-Peng Liu;Hsiang-Chun Hsiao;Yi Chiu

引用次数: 0

Dual-Polarized UWB Vivaldi Antenna With Polarization Diversity for Enhanced Tumor Localization in Multistatic Microwave Brain Imaging 偏振分集的双极化超宽带维瓦尔第天线在多静态微波脑成像中增强肿瘤定位

IF 2.4

IEEE Sensors Letters Pub Date : 2026-09-01 Epub Date: 2026-08-20 DOI: 10.1109/LSENS.2026.3726015

Ankit Sharma;Yuchen Gu;Drew Zachary Hay;Alan D. Bettermann;Daniel van der Weide

引用次数: 0

IEEE Sensors Letters Publication Information IEEE传感器通讯出版信息

IF 2.4

IEEE Sensors Letters Pub Date : 2026-09-01 Epub Date: 2026-09-21 DOI: 10.1109/LSENS.2026.3733571

引用次数: 0

CouplingNet: A Physiologically Informed Multitask Framework for Efficient Multiparameter Sensing of Heart and Respiratory Rates From a Single PPG Sensor CouplingNet：一个生理信息多任务框架，用于从单个PPG传感器有效地多参数感知心脏和呼吸速率

IF 2.4

IEEE Sensors Letters Pub Date : 2026-09-01 Epub Date: 2026-08-10 DOI: 10.1109/LSENS.2026.3722176

Kawisara Ueafuea;Theerawit Wilaiprasitporn;Thitikorn Kaewlee;Pitipat Gumphusiri;Nattapong Jaimchariyatam;Busarakum Chaitusaney;Wanumaidah Saengmolee

{"title":"CouplingNet: A Physiologically Informed Multitask Framework for Efficient Multiparameter Sensing of Heart and Respiratory Rates From a Single PPG Sensor","authors":"Kawisara Ueafuea;Theerawit Wilaiprasitporn;Thitikorn Kaewlee;Pitipat Gumphusiri;Nattapong Jaimchariyatam;Busarakum Chaitusaney;Wanumaidah Saengmolee","doi":"10.1109/LSENS.2026.3722176","DOIUrl":"https://doi.org/10.1109/LSENS.2026.3722176","url":null,"abstract":"Photoplethysmography (PPG)-based sensor systems are widely used for continuous vital sign monitoring in wearable and clinical systems. However, efficient multiparameter sensing remains challenging because heart rate (HR) and respiratory rate (RR) are typically estimated using separate models, increasing computational complexity, memory usage, and power consumption in resource-constrained devices. This work proposes CouplingNet, a physiologically informed multitask framework for joint HR and RR estimation from a single PPG signal. Building upon a shared temporal representation, the proposed architecture incorporates task-specific temporal branches and bidirectional cross-task coupling to exploit complementary cardiorespiratory information embedded in the PPG signal. Evaluated on the CapnoBase, BIDMC, and CU Sleep datasets, CouplingNet achieved competitive HR and RR estimation performance within an efficient unified architecture requiring fewer trainable parameters and a smaller model size than the evaluated single-task models. Statistically significant improvements over the corresponding single-task baselines were observed on some evaluated datasets. By enabling efficient joint HR and RR estimation from a single sensing modality, CouplingNet represents a promising framework for future resource-constrained wearable PPG monitoring.","PeriodicalId":13014,"journal":{"name":"IEEE Sensors Letters","volume":"10 9","pages":"5505504-5505504"},"PeriodicalIF":2.4,"publicationDate":"2026-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148925376","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

Enzymatic Glucose Sensing Using Glucose Oxidase-Integrated Conducting Polymer Extended Gate Field Effect Transistor 利用葡萄糖氧化酶集成的导电聚合物扩展门场效应晶体管进行酶促葡萄糖传感

IF 2.4

IEEE Sensors Letters Pub Date : 2026-08-01 Epub Date: 2026-06-22 DOI: 10.1109/LSENS.2026.3705902

Abhinay Dubey;Indu Kant Dwivedi;Shweta Tripathi

引用次数: 0

Sleep Posture Recognition for Dual-Occupancy Using Thermal Sensor Arrays 基于热传感器阵列的双人睡眠姿势识别

IF 2.4

IEEE Sensors Letters Pub Date : 2026-08-01 Epub Date: 2026-07-02 DOI: 10.1109/LSENS.2026.3709690

Selwan Abdussalam;Abdallah Naser;Ahmad Lotfi;Salisu Yahaya

引用次数: 0

A Dual-Top-Electrode ScAlN-Based Piezoelectric Micromachined Ultrasound Transducer With Series-Connected Electrode Topology for Enhanced Receiving Sensitivity 基于串联电极拓扑结构的双顶电极scaln压电微机械超声换能器提高了接收灵敏度

IF 2.4

IEEE Sensors Letters Pub Date : 2026-08-01 Epub Date: 2026-07-06 DOI: 10.1109/LSENS.2026.3710573

Zihan Lu;Hongxin Xu;Xuefei Yan;Huahuang Luo;Yuan Wang;Qingqing Ke

{"title":"A Dual-Top-Electrode ScAlN-Based Piezoelectric Micromachined Ultrasound Transducer With Series-Connected Electrode Topology for Enhanced Receiving Sensitivity","authors":"Zihan Lu;Hongxin Xu;Xuefei Yan;Huahuang Luo;Yuan Wang;Qingqing Ke","doi":"10.1109/LSENS.2026.3710573","DOIUrl":"https://doi.org/10.1109/LSENS.2026.3710573","url":null,"abstract":"This letter presents a dual-top-electrode scandium aluminum nitride (ScAlN)-based piezoelectric micromachined ultrasonic transducer (PMUT) operating in the series-connected electrode (SCE) topology. In the transmitting mode, the SCE topology ideally halves the local voltage across each piezoelectric unit. This allows a higher external drive voltage for the same electric field constraint, potentially doubling the maximum displacement. For the receiving mode, the SCE topology yields an excellent receiving sensitivity of 5.71 mV/Pa, which is 1.58 times that of its conventional outer-floating electrode (OFE) topology. The enhancement of receiving sensitivity is attributed to the reduction in static capacitance by series connection. Due to the slightly reduced transmitted sound pressure and substantially enhanced receiving sensitivity, the pulse-echo signal captured in the SCE transmit–receive configuration exhibits a 51.8% improvement over the OFE-based scheme. The PMUT with SCE is believed to reveal significant potential for highly sensitive ranging applications.","PeriodicalId":13014,"journal":{"name":"IEEE Sensors Letters","volume":"10 8","pages":"2504204-2504204"},"PeriodicalIF":2.4,"publicationDate":"2026-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148628003","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