Sensors and Actuators A-physical最新文献

Acoustic manipulation for particles motion transformation by ultrasonic phased arrays 超声相控阵对粒子运动变换的声学操纵

IF 4.1 3区工程技术

Sensors and Actuators A-physical Pub Date : 2025-05-14 DOI: 10.1016/j.sna.2025.116700

Hongqing Dai, Zhenchao Qiu, Lei Yan, Ning Dai

{"title":"Acoustic manipulation for particles motion transformation by ultrasonic phased arrays","authors":"Hongqing Dai, Zhenchao Qiu, Lei Yan, Ning Dai","doi":"10.1016/j.sna.2025.116700","DOIUrl":"10.1016/j.sna.2025.116700","url":null,"abstract":"<div><div>Acoustic tweezers utilize the interaction between acoustic waves and the acoustic radiation force exerted on objects to achieve precise motion control. Compared to other tweezer technologies, acoustic tweezers offer distinct advantages such as deep tissue penetration capability and enhanced acoustic radiation forces. Phased-array acoustic tweezers, in particular, have attracted growing research interest owing to their superior programmability. However, existing studies on phased-array systems predominantly focus on particle levitation in fluid environments – a quasi-static process with limited temporal resolution – while complex dynamic behaviors remain underexplored. In this work, we designed and constructed an 8 × 8 phased-array acoustic tweezer system for programmable particle trajectory control. The acoustic pressure field distributions were analyzed via finite element modeling, and focal positions were experimentally validated using the Schlieren imaging technique. We further investigated the spatial characteristics of acoustic radiation force fields and performed dynamic force analysis during particle motion. Experimental results demonstrated that phased-array acoustic tweezers can manipulate particle trajectories through coordinated activation of array elements, enabling directional transport of particles into designated microchannels. This platform achieves label-free particle manipulation without reliance on optical or magnetic properties, thereby expanding the toolkit for contactless control and showcasing promising applications in additive manufacturing and sustainable powder recycling technologies.</div></div>","PeriodicalId":21689,"journal":{"name":"Sensors and Actuators A-physical","volume":"392 ","pages":"Article 116700"},"PeriodicalIF":4.1,"publicationDate":"2025-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143948888","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Enhanced pressure sensitivity of side-hole fiber bragg grating sensor for downhole pressure and temperature measurement

IF 4.1 3区工程技术

Sensors and Actuators A-physical Pub Date : 2025-05-12 DOI: 10.1016/j.sna.2025.116692

Lei Liang , Yipan Cao , Ke Jiang , Xiaoling Tong , Hui Wang , Shu Dai

{"title":"Enhanced pressure sensitivity of side-hole fiber bragg grating sensor for downhole pressure and temperature measurement","authors":"Lei Liang , Yipan Cao , Ke Jiang , Xiaoling Tong , Hui Wang , Shu Dai","doi":"10.1016/j.sna.2025.116692","DOIUrl":"10.1016/j.sna.2025.116692","url":null,"abstract":"<div><div>Downhole pressure and temperature measurement is a critical component of intelligent well completion. Side-hole fiber Bragg gratings can facilitate dual-parameter measurement of temperature and pressure due to their stress birefringence characteristics. However, the inherent low pressure sensitivity of side hole fiber grating poses challenges for effective downhole measurements. This paper proposes a polyurethane side hole external encapsulation sensitization structure to enhance the birefringence effect of side hole fiber. We utilized finite element theory to investigate the influence of sensitization structural parameters on the fiber's birefringence effect. Through the implementation of a response surface optimization design method, the optimized sensor attained a pressure sensitivity of 202.41 pm/MPa and a temperature sensitivity of 34.627 pm/°C. Relative to the bare side hole fiber, the pressure sensitivity experienced an enhancement by a magnitude of 18, while the temperature sensitivity witnessed a tripling effect. And the measurement ranges of the sensor for temperature and pressure are 0–100°C and 0–40 MPa, respectively. Measurements taken at an approximate depth of 1500 m demonstrate that the sensor can endure the high-temperature and high-pressure conditions downhole, laying a technical foundation for all-fiber temperature and pressure monitoring in intelligent well completion.</div></div>","PeriodicalId":21689,"journal":{"name":"Sensors and Actuators A-physical","volume":"391 ","pages":"Article 116692"},"PeriodicalIF":4.1,"publicationDate":"2025-05-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143943778","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Microthermofluidic systems: From conceptualization to implementation for point of care diagnostic applications

IF 4.1 3区工程技术

Sensors and Actuators A-physical Pub Date : 2025-05-11 DOI: 10.1016/j.sna.2025.116689

Madhusudan B. Kulkarni , Sanket Goel

{"title":"Microthermofluidic systems: From conceptualization to implementation for point of care diagnostic applications","authors":"Madhusudan B. Kulkarni , Sanket Goel","doi":"10.1016/j.sna.2025.116689","DOIUrl":"10.1016/j.sna.2025.116689","url":null,"abstract":"<div><div>In recent years, there has been diligent expansion with emerging technological trends in developing microthermofluidic systems. Basically, a microthermofluidic system originates from integrating microfluidic technology and a thermal management system onto a single platform for accurate and stable heat transfer within the microchannel for several biomedical, pharmaceutical, and biochemical applications. In microfluidic devices, temperature is anelementary parameter. Still, it is sporadically ignored because of the non-uniform distribution of heat, high thermal dissipation, and the challenges associated with conventional heaters being able to be integrated into a microfluidic channel. The existing heaters are large, consume more power, are hard to incorporate advanced technological trends and fail to be used for point-of-care testing. Herein, the microthermofluidic system plays an incredible role in a microscale environment that manipulates a minimal fluid volume and offers the desired temperature uniformly on-chip. The microthermofluidic system can be accomplished for countless universal applications in healthcare, food processing, agriculture, chemical engineering, drug delivery, and clinical settings. This article comprehensively discusses the evolution and role of microthermofluidic systems, the significance of material selection, geometric design with appropriate optimization, and different fabrication tools involved in developing integrated microthermofluidic systems that undergo numerous biological and biochemical analyses. Further, the article sheds light on recent advances in microthermofluidic systems that have been implemented and are used for several applications. It also describes miniaturized thermoelectric devices.</div></div>","PeriodicalId":21689,"journal":{"name":"Sensors and Actuators A-physical","volume":"391 ","pages":"Article 116689"},"PeriodicalIF":4.1,"publicationDate":"2025-05-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143943780","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Nickel oxide/graphene-based temperature sensor: Flexible design with low processing temperatures and high stability 氧化镍/石墨烯温度传感器：设计灵活，加工温度低，稳定性高

IF 4.1 3区工程技术

Sensors and Actuators A-physical Pub Date : 2025-05-11 DOI: 10.1016/j.sna.2025.116693

Mahtab Taheri , Kadhir Ponnambalam , Ahmad M. Al Shboul , Mohsen Ketabi , M. Jamal Deen

{"title":"Nickel oxide/graphene-based temperature sensor: Flexible design with low processing temperatures and high stability","authors":"Mahtab Taheri , Kadhir Ponnambalam , Ahmad M. Al Shboul , Mohsen Ketabi , M. Jamal Deen","doi":"10.1016/j.sna.2025.116693","DOIUrl":"10.1016/j.sna.2025.116693","url":null,"abstract":"<div><div>This study presents the development and characterization of a flexible temperature sensor based on a composite of nickel oxide (NiO) and graphene, optimized for environmental monitoring. The sensor exhibits Negative Temperature Coefficient (NTC) behavior, with electrical resistance decreasing as temperature increases. The PS concentration significantly influenced the sensor's response, with higher concentrations leading to increased temperature sensitivity (higher β-values) but also introducing nonlinearity. We tailored the sensor's sensitivity and thermal response, achieving a β-value range from 1121 K to 2354 K between the temperature range −10℃ and 50℃. The sensor demonstrated rapid response time of 20 seconds, low hysteresis of 3.2 kΩ, a good resolution of ± 0.5°C, high repeatability across multiple temperature cycles with temperature range of −10℃ and 50℃, and high sensing stability over two months with a mean B-value of 2338.8 K and standard deviation of 36.46 K. It also showed enhanced stability against humidity up to 45 % RH. Long-term performance tests confirmed the sensor's robustness, with minimal drift in electrical resistance over 10 hours and consistent β-values over two months. The sensor was successfully applied to monitor temperature changes in controlled environments, demonstrating its potential for reliable, low-cost temperature monitoring in various applications.</div></div>","PeriodicalId":21689,"journal":{"name":"Sensors and Actuators A-physical","volume":"392 ","pages":"Article 116693"},"PeriodicalIF":4.1,"publicationDate":"2025-05-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143948763","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The effects of bluff body vibration mode to the output performance response of the galloping triboelectric nanogenerator for wind energy harvesting

IF 4.1 3区工程技术

Sensors and Actuators A-physical Pub Date : 2025-05-10 DOI: 10.1016/j.sna.2025.116662

Tianli Ma , Xiaojie Hu , Dingyi Wu , Shaolong Yang , Mengwei Wu , Tengfei Xie , Haiting Lv , Xiaoping Huang , Xianbo Xiang , Yan Wang

{"title":"The effects of bluff body vibration mode to the output performance response of the galloping triboelectric nanogenerator for wind energy harvesting","authors":"Tianli Ma , Xiaojie Hu , Dingyi Wu , Shaolong Yang , Mengwei Wu , Tengfei Xie , Haiting Lv , Xiaoping Huang , Xianbo Xiang , Yan Wang","doi":"10.1016/j.sna.2025.116662","DOIUrl":"10.1016/j.sna.2025.116662","url":null,"abstract":"<div><div>To continuously optimize the power generation performance of the wind energy harvesting galloping triboelectric nanogenerator (GTENG) based on the vibrating dielectric ball structure embedded in the bluff body, this study systematically studies the transition of bluff body vibration modes on power generation performance. A GTENG with adjustable system damping for harvesting broadband wind energy is proposed. Three distinct vibration modes are observed in six damping systems while Reynolds number is within 32500, which are single degree of freedom (DOF) mode, two DOF mode and deflected mode. The vibration mode ranges of six damping systems are determined by observing the vibration mode of the bluff body and measuring the peak and mean values of the output voltage and current. The instability of the two DOF vibration of the bluff body weakens the output performance of the GTENG. According to the analysis of experimental data, maintaining the single DOF vibration of the bluff body can improve the output performance of the GTENG under higher wind speed conditions. The results of this study can provide important guidance for dynamically adjusting the system damping under different wind speed conditions to optimize the output performance of GTENG.</div></div>","PeriodicalId":21689,"journal":{"name":"Sensors and Actuators A-physical","volume":"391 ","pages":"Article 116662"},"PeriodicalIF":4.1,"publicationDate":"2025-05-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143943777","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Chemically bonded flexible pressure sensor based on divergent metallic grid with high linearity, low hysteresis, and excellent stability 基于发散型金属网格的化学键合柔性压力传感器，具有高线性度、低迟滞和优异的稳定性

IF 4.1 3区工程技术

Sensors and Actuators A-physical Pub Date : 2025-05-10 DOI: 10.1016/j.sna.2025.116670

Guoxi Luo , Bingcheng Zhang , Diying Pi , Min Li , Ping Yang , Libo Zhao

{"title":"Chemically bonded flexible pressure sensor based on divergent metallic grid with high linearity, low hysteresis, and excellent stability","authors":"Guoxi Luo , Bingcheng Zhang , Diying Pi , Min Li , Ping Yang , Libo Zhao","doi":"10.1016/j.sna.2025.116670","DOIUrl":"10.1016/j.sna.2025.116670","url":null,"abstract":"<div><div>As intelligent robots and smart wearable electronics become commonplace, the demand for flexible pressure sensors is increasing rapidly. Despite the enormous effort in the development of flexible pressure sensor with high sensitivity, limited progress has been made in terms of developing a flexible pressure sensor with high linearity, low hysteresis, and high stability to avoid additional signal processing and signal distortion, and meanwhile promise good accuracy. Herein, we developed a flexible pressure sensor on foundation of the metallic strain effect. The divergent metallic grid was manufactured on polymide (PI) film with the mature magnetron sputtering and lift-off method, and a novel chemical bonding between PI and outer covering polydimethylsiloxane (PDMS) was developed for a flexible encapsulation. Benefiting from the excellent intrinsic properties of rigid sensitive materials and high-strength bonding. The as-fabricated pressure sensors exhibited several superior properties that are characterized by high linearity (linear regression coefficient of R<sup>2</sup> = 0.991) in whole sensing range (0–620 kPa), low hysteresis (2.78 %), rapid response/relaxation time (ca. 29/21 ms), remarkable durability (over 13,000 bending and stretching cycles), and excellent stability. The integrated merits of this novel pressure sensor were demonstrated in applications including human physiological signal monitoring, material identification, and pressure space mapping.</div></div>","PeriodicalId":21689,"journal":{"name":"Sensors and Actuators A-physical","volume":"392 ","pages":"Article 116670"},"PeriodicalIF":4.1,"publicationDate":"2025-05-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143948764","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Design and testing of a probe for diameter variation measurement based on fiber Bragg grating combined with additive manufacturing

IF 4.1 3区工程技术

Sensors and Actuators A-physical Pub Date : 2025-05-10 DOI: 10.1016/j.sna.2025.116604

Victor H.R. Cardoso , Paulo Caldas , M.Thereza R. Giraldi , Cindy S. Fernandes , Orlando Frazão , João C.W.A. Costa , José L. Santos

引用次数: 0

Preparation and study of a transient heat flux sensor based on PbTe thin film and the transverse thermoelectric effect

IF 4.1 3区工程技术

Sensors and Actuators A-physical Pub Date : 2025-05-10 DOI: 10.1016/j.sna.2025.116658

Songhan Liu, Wenxin Yu, Zhipeng Liu

{"title":"Preparation and study of a transient heat flux sensor based on PbTe thin film and the transverse thermoelectric effect","authors":"Songhan Liu, Wenxin Yu, Zhipeng Liu","doi":"10.1016/j.sna.2025.116658","DOIUrl":"10.1016/j.sna.2025.116658","url":null,"abstract":"<div><div>PbTe films with a preferred orientation were grown on inclined LiAlO₂ substrates by controlling the process parameters of magnetron sputtering without doping other elements. These films were then used as the sensitive surface to fabricate a transient heat flux sensor (THFS). The sensor's sensitive surface was subjected to laser-induced voltage experiments using a semiconductor laser from both the film and substrate sides. The experimental results demonstrate that the induced voltage generated by the thin film is caused by a temperature gradient, confirming that the prepared PbTe film exhibits thermoelectric effects. The investigation of the transverse thermoelectric effect of the THFS yielded the following results: As the film thickness increased, the response voltage initially increased and then decreased. At the same time, the time constant initially decreased and then increased. Additionally, as the growth angle of the thin film increased, the response voltage gradually increased. A dual-functional transient heat flux sensor calibration system was developed to calibrate the static and dynamic characteristics of the THFS. The sensor demonstrated a sensitivity of 85.4 μV/(kW/m²), good linearity and repeatability, and a response time of 112.9 μs. A comparison experiment was conducted in the explosion field with the THFS and atomic layer thermopile heat flux sensor. The results show that the transverse thermoelectric effect of PbTe has excellent potential for application in transient heat flux measurement.</div></div>","PeriodicalId":21689,"journal":{"name":"Sensors and Actuators A-physical","volume":"391 ","pages":"Article 116658"},"PeriodicalIF":4.1,"publicationDate":"2025-05-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143943776","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Design of a flexible data glove for gesture recognition

IF 4.1 3区工程技术

Sensors and Actuators A-physical Pub Date : 2025-05-10 DOI: 10.1016/j.sna.2025.116638

Jing Fang , Ruoxin Feng , Xiangxuan Tang , Longhui Qin

{"title":"Design of a flexible data glove for gesture recognition","authors":"Jing Fang , Ruoxin Feng , Xiangxuan Tang , Longhui Qin","doi":"10.1016/j.sna.2025.116638","DOIUrl":"10.1016/j.sna.2025.116638","url":null,"abstract":"<div><div>As a newly emerged assistive device, data gloves are able to help amputees rebuild their sense of haptic perception, empower robots with dexterous manipulation, and even enhance human’s capability of remote sensing and control. Up to now, it has boosted a wide range of potential applications, e.g., tele-operation, medical rehabilitation, and virtual reality. In this paper, a low-cost and easy-to-fabricate flexible data glove was designed consisting of 5–row by 4–column piezo-resistive sensing elements (SEs), two flexible electronic circuits and two protective polydimethylsiloxane (PDMS) layers. Based on the design of a ’switch’ structure and a simplified wiring layout, the stimulus locations and force values could be determined conveniently with a dynamic scanning algorithm, although there were only 9-path signal outputs. After the experimental verification of its perception performance, a recognition model was established based on an extreme learning machine (ELM) algorithm to recognize 10 hand gestures, one of its potential applications, in which 20 subjects participated. It achieved a recognition accuracy of 92.37% and the standard deviation was <span><math><mo>±</mo></math></span> 1.80% among these individuals, which validated the performance of our designed data glove.</div></div>","PeriodicalId":21689,"journal":{"name":"Sensors and Actuators A-physical","volume":"391 ","pages":"Article 116638"},"PeriodicalIF":4.1,"publicationDate":"2025-05-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143943290","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Enhanced NO2 sensing performance of WO3 nanoparticles prepared with glycine 甘氨酸制备的WO3纳米颗粒增强NO2传感性能

IF 4.1 3区工程技术

Sensors and Actuators A-physical Pub Date : 2025-05-09 DOI: 10.1016/j.sna.2025.116690

Yi Zhong , Zhihua Ying , Yan Liu , Chenhan Zhang , Wenjun Yan , Yuan Jiang

{"title":"Enhanced NO2 sensing performance of WO3 nanoparticles prepared with glycine","authors":"Yi Zhong , Zhihua Ying , Yan Liu , Chenhan Zhang , Wenjun Yan , Yuan Jiang","doi":"10.1016/j.sna.2025.116690","DOIUrl":"10.1016/j.sna.2025.116690","url":null,"abstract":"<div><div>Conventional metal oxide semiconductor gas sensors are inherently limited by their dependence on high operating temperatures (200–400℃), which leads to increased energy consumption and reduced long-term device stability. To overcome these challenges, this study presents a glycine-assisted solvent evaporation synthesis route for the preparation of highly dispersible WO<sub>3</sub> nanoparticles. Glycine acts dually as a crystallographic modulator during nanoparticle growth and as an interfacial stabilizer, allowing for control over both particle size and oxygen vacancy concentration. Subsequent annealing removes residual glycine while preserving the optimized nanostructure. The optimized 6-WO<sub>3</sub> sensor synthesized using 6 mmol glycine exhibits remarkable low-temperature sensing performance, demonstrating a response value of 270.9 toward 3 ppm NO<sub>2</sub> at a reduced operating temperature of 120°C compared to conventional WO<sub>3</sub>-based counterparts while maintaining high sensitivity. Systematic characterization links this energy-efficient performance to synergistic effects between enhanced gas diffusion pathways, evidenced by a BET surface area of 20.59 m<sup>2</sup>/g, and precise modulation of electron depletion layers via glycine-mediated oxygen vacancy engineering. This work advances a practical paradigm for designing metal oxide semiconductor sensors that harmonize high sensitivity with operational sustainability, highlighting their transformative potential in next-generation environmental monitoring systems.</div></div>","PeriodicalId":21689,"journal":{"name":"Sensors and Actuators A-physical","volume":"391 ","pages":"Article 116690"},"PeriodicalIF":4.1,"publicationDate":"2025-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143936512","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0