IEEE Sensors Letters最新文献_第2页

Design of a Passive High-g MEMS Acceleration Sensor for Drop Tests 用于跌落测试的无源高g MEMS加速度传感器的设计

IF 2.4

IEEE Sensors Letters Pub Date : 2026-08-01 Epub Date: 2026-07-01 DOI: 10.1109/LSENS.2026.3709136

Sebastian Hermann;Burkhard Kuhlmann;Andrea Guerrieri;Jeffrey Gregory;Andreas Lassl;André Zimmermann

{"title":"Design of a Passive High-g MEMS Acceleration Sensor for Drop Tests","authors":"Sebastian Hermann;Burkhard Kuhlmann;Andrea Guerrieri;Jeffrey Gregory;Andreas Lassl;André Zimmermann","doi":"10.1109/LSENS.2026.3709136","DOIUrl":"https://doi.org/10.1109/LSENS.2026.3709136","url":null,"abstract":"This letter presents the design, fabrication, and testing of a novel passive high-g micro-electro-mechanical systems acceleration sensor for recording shock events, primarily for drop tests in consumer electronics. The sensor operates based on a passive mechanical concept, where an inertial mass displaces under acceleration and impacts a series of breakable mechanical fuses. The breakage of these fuses in the form of small beams serves as a permanent, nonvolatile record of the peak displacement, which corresponds to the experienced acceleration. The state of the beams is determined by measuring changes in the electrical resistance across the path. Devices are fabricated, which utilize the proposed structure with two distinct resonance frequencies to better differentiate the shock profile. An experimental validation was performed by subjecting these devices to controlled shocks up to 70 000 g using a Hopkinson bar. The structure successfully indicates the occurrence and direction of a shock event through a measurable change in resistance, which validates the core concept of the passive acceleration sensor.","PeriodicalId":13014,"journal":{"name":"IEEE Sensors Letters","volume":"10 8","pages":"2504104-2504104"},"PeriodicalIF":2.4,"publicationDate":"2026-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148627500","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

Aerosol Jet-Printed Multilayer SWCNT/P3HT Phototransistors With Photogating Enhanced Responsivity 气溶胶喷射打印多层swcnts /P3HT光电晶体管与光控增强响应

IF 2.4

IEEE Sensors Letters Pub Date : 2026-08-01 Epub Date: 2026-06-24 DOI: 10.1109/LSENS.2026.3707036

Zahra Bahrami;Kevin Schnittker;Strahinja Marinkovic;Joseph Andrews

{"title":"Aerosol Jet-Printed Multilayer SWCNT/P3HT Phototransistors With Photogating Enhanced Responsivity","authors":"Zahra Bahrami;Kevin Schnittker;Strahinja Marinkovic;Joseph Andrews","doi":"10.1109/LSENS.2026.3707036","DOIUrl":"https://doi.org/10.1109/LSENS.2026.3707036","url":null,"abstract":"Phototransistors (PTs) are critical sensing components for emerging technologies, particularly for weak light detection. Printed PTs offer significant advantages, including flexibility, and large-area scalability. In this study, we present a simplified and cost-effective process for fabricating single-wall carbon nanotube (SWCNT) and Poly(3-hexylthiophene) (P3HT) PTs using aerosol jet printing. Our findings reveal that the printed devices exhibit exceptionally high photoresponsivity, achieving 6.48 × 104 A/W at a wavelength of 470 nm with a power intensity of 0.37 <italic>μW/cm2. This remarkable photoresponsivity is primarily due to the high light absorption characteristics of the conjugated polymer, combined with the excellent mobility provided by the underlying SWCNT network. Furthermore, we assessed the detectivity by analyzing the noise profile at 10 Hz. The maximum detectivity reaches approximately 2.53 × 1010. These results indicate that the aerosol jet-printed SWCNT/P3HT multilayer platform is a promising approach for advanced large-area, flexible photodetection applications.","PeriodicalId":13014,"journal":{"name":"IEEE Sensors Letters","volume":"10 8","pages":"3504804-3504804"},"PeriodicalIF":2.4,"publicationDate":"2026-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148627580","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

Multichannel Wireless Driving of an Untethered Film Robot Based on Kinetic Electronics for Sensor–Actuator Platforms 基于动力学电子学的无系膜机器人传感器-执行器平台多通道无线驱动

IF 2.4

IEEE Sensors Letters Pub Date : 2026-08-01 Epub Date: 2026-07-02 DOI: 10.1109/LSENS.2026.3709850

Yuta Fukuda;Yuzan Ninomiya;Kenshi Hayashi;Fumihiro Sassa

{"title":"Multichannel Wireless Driving of an Untethered Film Robot Based on Kinetic Electronics for Sensor–Actuator Platforms","authors":"Yuta Fukuda;Yuzan Ninomiya;Kenshi Hayashi;Fumihiro Sassa","doi":"10.1109/LSENS.2026.3709850","DOIUrl":"https://doi.org/10.1109/LSENS.2026.3709850","url":null,"abstract":"Small robots capable of operating in confined or difficult-to-access environments are attracting interest for inspection, environmental monitoring, and biomedical applications. In such applications, mobile sensor–actuator platforms are expected to place sensing elements and functional interfaces near target sites. Kinetic electronics provides a monolithic film-robot platform for integrating actuators, electrical circuits, and extra functional components, including sensing elements. However, previously reported kinetic-electronics film robots have relied mainly on external electrical connections for actuation and control. In this study, we report frequency-selective wireless driving of an untethered film robot based on kinetic electronics using magnetic resonance coupling. The robot includes two thermal bimorph actuators, each connected to a receiver coil and a surface-mounted capacitor with different capacitance values. By switching the driving frequency, actuators A and B were selectively driven at 2.05 and 1.15 MHz, respectively. The actuator curvature decreased with increasing vertical distance between the transmitter and receiver coils, showing the distance-dependent wireless driving characteristics. Alternating the two driving frequencies produced planar locomotion of the robot. These results demonstrate an Untethered Film Robot with frequency-selective multiactuator operation and locomotion, providing a basis for mobile kinetic-electronics sensor–actuator platforms.","PeriodicalId":13014,"journal":{"name":"IEEE Sensors Letters","volume":"10 8","pages":"5000404-5000404"},"PeriodicalIF":2.4,"publicationDate":"2026-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=11594035","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148627803","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

MTJ Sensor-Based Magnetic Microparticle Detection With Edge ML 基于MTJ传感器的磁微粒边缘检测

IF 2.4

IEEE Sensors Letters Pub Date : 2026-08-01 Epub Date: 2026-07-17 DOI: 10.1109/LSENS.2026.3714275

Salem Al-Saqaf;Divyanshu Divyanshu;Meng Tang;Selma Amara;Gianluca Setti

引用次数: 0

Wavelength Dependence and Transient Photoresponse Mechanisms in Aerosol-Jet Printed ZnO Nanowire Ultraviolet Photodetectors 气溶胶-喷射印刷ZnO纳米线紫外探测器的波长依赖性和瞬态光响应机制

IF 2.4

IEEE Sensors Letters Pub Date : 2026-08-01 Epub Date: 2026-06-08 DOI: 10.1109/LSENS.2026.3701529

Chenkun Lyu;Haoyi Lin;Joseph Andrews

{"title":"Wavelength Dependence and Transient Photoresponse Mechanisms in Aerosol-Jet Printed ZnO Nanowire Ultraviolet Photodetectors","authors":"Chenkun Lyu;Haoyi Lin;Joseph Andrews","doi":"10.1109/LSENS.2026.3701529","DOIUrl":"https://doi.org/10.1109/LSENS.2026.3701529","url":null,"abstract":"Ultraviolet (UV) radiation poses significant health risks, motivating the development of reliable UV sensing systems. This letter presents an aerosol-jet-printed zinc oxide (ZnO) nanowire UV photodetector fabricated on a Si/SiO2 substrate using printed interdigitated Ag electrodes and a ZnO nanowire sensing layer. The device exhibits strong wavelength- and intensity-dependent photoresponse under 340 and 375 nm UV illumination at a 1 V bias. At the same irradiance of 60 <italic>μW·cm−2, the photocurrent reached ∼0.9 mA at 340 nm and ∼0.11 mA at 375 nm, corresponding to responsivities of 31.71 and 3.67 A/W, respectively. Transient measurements reveal pronounced persistent photoconductivity and strong dependence of recovery behavior on illumination conditions. In addition, thermal cycling experiments and a 10-nm Al2O3 atomic layer deposition encapsulation layer were used to investigate the role of oxygen-related surface processes in carrier transport and recovery dynamics. These results provide insight into the transient photoresponse mechanisms of ZnO nanowire UV photodetectors and the influence of surface interactions on device behavior.","PeriodicalId":13014,"journal":{"name":"IEEE Sensors Letters","volume":"10 8","pages":"3504704-3504704"},"PeriodicalIF":2.4,"publicationDate":"2026-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148628257","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

Camera Sensor Qualification for Multiview Vehicle Detection 多视点车辆检测的相机传感器鉴定

IF 2.4

IEEE Sensors Letters Pub Date : 2026-08-01 Epub Date: 2026-07-02 DOI: 10.1109/LSENS.2026.3709849

Vincent Lassen;Maximilian Lübke;Eva Russwurm;Norman Franchi

{"title":"Camera Sensor Qualification for Multiview Vehicle Detection","authors":"Vincent Lassen;Maximilian Lübke;Eva Russwurm;Norman Franchi","doi":"10.1109/LSENS.2026.3709849","DOIUrl":"https://doi.org/10.1109/LSENS.2026.3709849","url":null,"abstract":"This work presents a systematic evaluation of the impact of camera sensor quality on vision-based vehicle detection and multicamera fusion in a controlled parking-lot model. It investigates whether multiple low-quality cameras can achieve performance comparable to high-quality systems. Sensor properties, including spatial resolution, noise behavior, and dynamic range, are analyzed using a reproducible evaluation procedure. A bird’s-eye-view detection and fusion pipeline enables direct attribution of performance variations to hardware characteristics. Experiments under controlled illumination (sunny, cloudy, and nighttime) show that detection performance does not increase monotonically with resolution, achieving best results at intermediate resolutions (mIoU up to 0.9156), while both lower (0.8054) and higher resolutions reduce performance. High-quality sensors provide higher localization accuracy and robustness, particularly under low-light conditions. Fusion achieves intersection-over-union values up to 0.83, with sensor quality directly affecting accuracy and variance. Multiview fusion can partially compensate for lower sensor quality, though with increased noise sensitivity. The proposed methodology enables objective comparison and selection of camera systems for robust parking monitoring.","PeriodicalId":13014,"journal":{"name":"IEEE Sensors Letters","volume":"10 8","pages":"5504904-5504904"},"PeriodicalIF":2.4,"publicationDate":"2026-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148628277","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

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

IF 2.4

IEEE Sensors Letters Pub Date : 2026-08-01 Epub Date: 2026-08-19 DOI: 10.1109/LSENS.2026.3719013

引用次数: 0

Novel Sputtered Metal Oxides (SnO2:F, HfO2, WO3) for High-Sensitivity HMR-Based Optical Refractometers 用于高灵敏度hmr光学折射计的新型溅射金属氧化物（SnO2:F, HfO2, WO3）

IF 2.4

IEEE Sensors Letters Pub Date : 2026-08-01 Epub Date: 2026-07-02 DOI: 10.1109/LSENS.2026.3709661

Angel Correa-Fernández;Elieser E. Gallego-Martínez;Carlos Ruiz Zamarreño;Ignacio R. Matías

{"title":"Novel Sputtered Metal Oxides (SnO2:F, HfO2, WO3) for High-Sensitivity HMR-Based Optical Refractometers","authors":"Angel Correa-Fernández;Elieser E. Gallego-Martínez;Carlos Ruiz Zamarreño;Ignacio R. Matías","doi":"10.1109/LSENS.2026.3709661","DOIUrl":"https://doi.org/10.1109/LSENS.2026.3709661","url":null,"abstract":"Hyperbolic mode resonances (HMR)-based devices, presented as the natural successors of lossy mode resonance-based devices, can provide deep and stable resonances with remarkable sensitivity. However, they are still in its infancy with ample room for the exploration of novel materials that enable the generation of HMR. This work explores the utilization of fluorinated tin oxide (SnO2:F), hafnium dioxide (HfO2), and tungsten trioxide (WO3) as external coatings for HMR generation using a planar waveguide configuration (24 mm x 32 mm coverslips). Basic HMR structure consisted of a combination of DC and RF sputtered coatings of an intermediate Au layer and a metal oxide external layer, respectively. The sensors’ spectral responses were measured over a refractive index (RI) range spanning from air (≈1.0) to 1.45, covering relevant analytes in gas and liquid sensing. HMR sensors exhibited distinct resonance features that shift systematically with increasing RI, enabling accurate label-free refractometry. The obtained sensitivity, figure of merit, and linearity are compared across the three devices, highlighting the influence of the hyperbolic metamaterial design on the sensing performance. Obtained results demonstrate that HMR-based sensors can provide compact and versatile platforms for RI detection, with enormous potential for integration into lab-on-a-chip systems.","PeriodicalId":13014,"journal":{"name":"IEEE Sensors Letters","volume":"10 8","pages":"3504404-3504404"},"PeriodicalIF":2.4,"publicationDate":"2026-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148626391","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

High-Resolution Direct-Ink-Writing of Microelectrodes for Dielectrophoresis-Based Nanowire Assembly and Flexible Photodetectors 用于介电基纳米线组件和柔性光电探测器的微电极的高分辨率直接墨水书写

IF 2.4

IEEE Sensors Letters Pub Date : 2026-08-01 Epub Date: 2026-06-11 DOI: 10.1109/LSENS.2026.3702559

Yilin Song;Abhishek Singh Dahiya;Dhayalan Shakthivel;Ravinder Dahiya

{"title":"High-Resolution Direct-Ink-Writing of Microelectrodes for Dielectrophoresis-Based Nanowire Assembly and Flexible Photodetectors","authors":"Yilin Song;Abhishek Singh Dahiya;Dhayalan Shakthivel;Ravinder Dahiya","doi":"10.1109/LSENS.2026.3702559","DOIUrl":"https://doi.org/10.1109/LSENS.2026.3702559","url":null,"abstract":"Capillary-driven direct-ink-writing (DIW) printing offers a powerful route to high-resolution microelectrode fabrication, combining submicrometer patterning capability with mask-free, additive processing on flexible substrates, while eliminating the need for cleanroom infrastructure and hazardous chemical waste associated with conventional photolithography-based methods for obtaining high-resolution electrodes. In this work, these strengths are exploited to address a key challenge in dielectrophoresis (DEP)-based nanowire (NW) assembly, namely, the need for microelectrodes with gaps closely matched to NW length for effective trapping. By optimizing nozzle geometry and printing parameters, interdigitated silver nanoparticle microelectrodes with a 10 µm gap were directly printed onto flexible polyimide substrates, matched to the 15–20 µm length of ZnO NWs. Optimized DEP conditions of 24 Vpp at 1 MHz enabled deterministic NW alignment across the electrode gaps. The resulting flexible UV photodetectors exhibited a clear photoresponse at 365 nm, with a responsivity of 31 AW−1 at 8 V bias and response and recovery times of 18 and 82 s, respectively. Through these proof of concept devices, this work demonstrates that high-resolution DIW-printed microelectrodes provide a scalable, resource-efficient, and accessible platform for DEP-based NW integration, opening a practical pathway toward low-cost flexible electronic devices.","PeriodicalId":13014,"journal":{"name":"IEEE Sensors Letters","volume":"10 8","pages":"3504004-3504004"},"PeriodicalIF":2.4,"publicationDate":"2026-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148627386","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

Dynamic Multigas Differentiation Using a Temperature-Modulated Dielectric-Excitation Gas Sensor 使用温度调制介电激励气体传感器的动态多气体鉴别

IF 2.4

IEEE Sensors Letters Pub Date : 2026-08-01 Epub Date: 2026-06-22 DOI: 10.1109/LSENS.2026.3706243

Shiyao Shan;Baokai Cheng;Garrett Sculthorpe;Janell Crowder;Radislav A. Potyrailo

引用次数: 0