Sensors and Actuators A-physical最新文献_第9页

An ultra-compliant P(VDF-TrFE) fiber-based muscle patch sensor for a new wearable application: Monitoring muscle activities and fatigue through the peripheral length of a muscle’s physiological cross-sectional area 一种超柔韧P（VDF-TrFE）纤维肌肉贴片传感器，用于新的可穿戴应用：通过肌肉生理横截面积的外围长度监测肌肉活动和疲劳

IF 4.1 3区工程技术

Sensors and Actuators A-physical Pub Date : 2025-06-19 DOI: 10.1016/j.sna.2025.116823

Yu-Hsiang Hsu , Yu-Lin Lu , Ting-Wei Wang , Gu-Ren Chu , Liang-Yu Hsu , Shiang-Ru Lin , Tsung-Yu Huang , Wen-Tzu Tang

{"title":"An ultra-compliant P(VDF-TrFE) fiber-based muscle patch sensor for a new wearable application: Monitoring muscle activities and fatigue through the peripheral length of a muscle’s physiological cross-sectional area","authors":"Yu-Hsiang Hsu , Yu-Lin Lu , Ting-Wei Wang , Gu-Ren Chu , Liang-Yu Hsu , Shiang-Ru Lin , Tsung-Yu Huang , Wen-Tzu Tang","doi":"10.1016/j.sna.2025.116823","DOIUrl":"10.1016/j.sna.2025.116823","url":null,"abstract":"<div><div>Current applications of physical sensors on wearable devices are primarily for monitoring gestures and body movement, which measure joint movements or action-induced compression pressure. Here, we present a new application of physical sensors: monitoring muscle activities and fatigue through the changes in the physiological cross-sectional area (PCSA) of muscles. The concept is that the contraction of excited muscle fibers results in muscle center bulges and PCSA enlargement. The peripheral length of a muscle perpendicular to the contracting direction is also increased. This increment in muscle peripheral length can be utilized to infer muscle activity and fatigue-induced tremors. To monitor muscle activities and fatigue through peripheral length change, we developed an ultra-compliant piezoelectric muscle patch sensor (MPS) that attaches to the skin above the muscle of interest. The MPS is constructed by a piezoelectric yarn composed of P(VDF-TrFE) fibers and is encapsulated inside silicon rubber to reach high repeatability, durability, and linearity. This MPS is highly compliant and can follow the bulge of the muscle contractions without introducing restrictions on PCSA change. We demonstrate that the MPS can faithfully monitor the changes in peripheral length during various isometric, concentric, and eccentric muscle contractions and fatigue. It is verified that the contribution of each muscle group to gestures and body movements can be directly monitored. The MPS can be broadly applied to sports, virtual reality, gaming, muscular disorders rehabilitation, and essential tremor disorder sensors.</div></div>","PeriodicalId":21689,"journal":{"name":"Sensors and Actuators A-physical","volume":"393 ","pages":"Article 116823"},"PeriodicalIF":4.1,"publicationDate":"2025-06-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144366784","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

Porous silicon based fuel cell type alcohol vapor sensor 多孔硅基燃料电池型酒精蒸气传感器

IF 4.1 3区工程技术

Sensors and Actuators A-physical Pub Date : 2025-06-19 DOI: 10.1016/j.sna.2025.116821

Pinar Duzgun, Cigdem Nuhoglu, Sureyya Aydin Yuksel

{"title":"Porous silicon based fuel cell type alcohol vapor sensor","authors":"Pinar Duzgun, Cigdem Nuhoglu, Sureyya Aydin Yuksel","doi":"10.1016/j.sna.2025.116821","DOIUrl":"10.1016/j.sna.2025.116821","url":null,"abstract":"<div><div>In this study, fuel cell type alcohol vapor sensors based on Silver/Porous silicon/nSi Schottky diodes are presented for the first time in the literature. The structures produce fuel cell-like short circuit current with alcohol vapor at room temperature without requiring any external power source. The sensors were produced with PS layers with two different morphologies and their effects on alcohol vapor sensitivity were investigated. It was determined that the devices subjected to alcohol vapor tests using four different alcohols (methanol, ethanol, 2-propanol and butanol) in the range of 50–350 ppm detected all alcohols with different short circuit current changes. Our sensors, which were determined to have the highest sensitivity to methanol with the lowest carbon chain, decrease their sensitivity depending on the carbon chain length. While the barrier height of the diodes for both PS structures decreases linearly with increasing methanol vapor concentration, a shift towards lower voltages occurred in the reverse bias breakdown voltages in the PS layered device with less sponge-like peak areas. When the morphological, optical and structural characterizations of the PS layers were examined together, it was seen that the morphological properties were decisive for the diode parameters at the initial conditions and that these parameters were affected by alcohol vapor at different levels and with similar relationships. The short circuit current created by the sensors in methanol vapor (50–350 ppm) at room temperature and atmospheric pressure, depending on the alcohol vapor concentration, varied between 1.00 and 150 nA.cm<sup>−2</sup>.</div></div>","PeriodicalId":21689,"journal":{"name":"Sensors and Actuators A-physical","volume":"393 ","pages":"Article 116821"},"PeriodicalIF":4.1,"publicationDate":"2025-06-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144329545","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

Improving wideband performance for ScAlN based piezoelectric MEMS speaker by multi-mode excitation 利用多模激励提高基于ScAlN的压电MEMS扬声器的宽带性能

IF 4.1 3区工程技术

Sensors and Actuators A-physical Pub Date : 2025-06-18 DOI: 10.1016/j.sna.2025.116812

Peng Chen , Yan Wang , Junning Zhang , Zihan Li , Hongbin Yu

{"title":"Improving wideband performance for ScAlN based piezoelectric MEMS speaker by multi-mode excitation","authors":"Peng Chen , Yan Wang , Junning Zhang , Zihan Li , Hongbin Yu","doi":"10.1016/j.sna.2025.116812","DOIUrl":"10.1016/j.sna.2025.116812","url":null,"abstract":"<div><div>Traditional piezoelectric MEMS speakers that work based on exciting the first-order mode resonance of its electro-acoustic transduction structure have to face challenge in achieving broadband high sound pressure level (SPL) output performance. To address this critical issue, a novel structure design strategy by selectively exciting additional high-order resonance with net air volume pushing characteristic in the transduction structure is presented. Under the effect of resonance amplification, the broadband SPL output capability of the speaker can be effectively enhanced without compromising the compact device size. In proof-of-concept experiment, a Scandium-doped Aluminum Nitride (ScAlN) based piezoelectric MEMS speaker consisting of four identical triangular cantilever beam-like piezoelectric actuators that are arranged into a square configuration is used. Through elaborately designing the cantilever beam structure and the top electrode partition as well as corresponding driving strategy, both of its first-order (4.05 kHz) and the third-order (17.83 kHz) resonance modes can be specifically activated to cover relatively wide frequency range. From the SPL spectrum measurement results using the IEC ear simulator, it can be seen that the as-fabricated speaker prototype can successfully generate SPL higher than 90 dB over the whole audio frequency range. Especially for frequency above 65 Hz, even higher SPL of 100 dB can be achieved, under driving voltage of 20 V<sub>pp</sub> despite of its compact active area of 3.2 × 3.2 mm². Moreover, excellent operation linearity has also been revealed even the driving voltage is increased to as high as 30 V<sub>pp</sub> and the total harmonic distortion (THD) as low as 0.52 % at 1 kHz (108 dB SPL) can be obtained. Given the competitive wideband performance, the proposed strategy demonstrates potential application perspective in developing piezoelectric MEMS speaker to meet commercial requirements.</div></div>","PeriodicalId":21689,"journal":{"name":"Sensors and Actuators A-physical","volume":"393 ","pages":"Article 116812"},"PeriodicalIF":4.1,"publicationDate":"2025-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144321974","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

Fabrication of spinel CuNiMn2O4 nanoparticles encapsulated with g-C3N4 nanosheets for bifunctional sensor and energy storage applications g-C3N4纳米片包裹尖晶石CuNiMn2O4纳米颗粒的制备及其双功能传感器和储能应用

IF 4.1 3区工程技术

Sensors and Actuators A-physical Pub Date : 2025-06-18 DOI: 10.1016/j.sna.2025.116815

R. Thenmozhi, R. Navamathavan

{"title":"Fabrication of spinel CuNiMn2O4 nanoparticles encapsulated with g-C3N4 nanosheets for bifunctional sensor and energy storage applications","authors":"R. Thenmozhi, R. Navamathavan","doi":"10.1016/j.sna.2025.116815","DOIUrl":"10.1016/j.sna.2025.116815","url":null,"abstract":"<div><div>Worldwide, the sensor and energy storage field is most popular due to its demand for usage and increased economic value. For this purpose, it is emergent to prepare an electrode material for both the application point of view. This work describes a Mn based spinel structure of CuNiMn<sub>2</sub>O<sub>4</sub> (CNM) is prepared by the solvothermal method and to enhance its electrochemical property, 1 and 3 % of g-C<sub>3</sub>N<sub>4</sub> is incorporated into the (CNM) as a nanocomposite of (CNM@1 % G) and (CNM@3 % G) formation. The incorporation of g-C<sub>3</sub>N<sub>4</sub> into the CNM, the internal resistance is decreased, which is the reason for the enhancement of the electrochemical properties. The systematic characterizations studies of XRD, FESEM, HRTEM, and XPS are investigated and electrochemical studies of cyclic voltametry, electrochemical impedance analysis, Chronoamperometry, galvanostatic charge discharge studies are performed for a non-enzymatic glucose detection and for supercapacitor application. The FESEM reveals the nano flake like particle morphology and HRTEM reveals the nanoflake like morphology. The CNM@3 % G nanocomposite obtained a higher sensitivity and LOD of 1268 mA µM<sup>−1</sup> Cm<sup>−2</sup> and 0.305 µM. For the supercapacitor application of three electrode system, the CNM@3 % G nanocomposite is obtained a higher specific capacitance of 195 F/g for 1 A/g of current density. For a two electrode system, the calculated specific capacitance is 13 F/g for 4 A/g of current density. The calculated energy and power density are 4.06 Wh kg<sup>−1</sup> and 235 kW kg<sup>−1</sup>. The obtained coulombic efficiency is 100 % and stability was determined as 2500 cycles.</div></div>","PeriodicalId":21689,"journal":{"name":"Sensors and Actuators A-physical","volume":"393 ","pages":"Article 116815"},"PeriodicalIF":4.1,"publicationDate":"2025-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144338596","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

SPR turbidity sensor using microstructured POF coated with gold film SPR浊度传感器采用微结构POF包覆金膜

IF 4.1 3区工程技术

Sensors and Actuators A-physical Pub Date : 2025-06-18 DOI: 10.1016/j.sna.2025.116816

Abdul Ghaffar , Jianqiang Zhou , Mujahid Mehdi , Sadam Hussain , Kamran Ali , Khurram Karim Qureshi , Jianping Yu , Rehan Mehdi , Ahmed Muddassir Khan , Ma Rui

{"title":"SPR turbidity sensor using microstructured POF coated with gold film","authors":"Abdul Ghaffar , Jianqiang Zhou , Mujahid Mehdi , Sadam Hussain , Kamran Ali , Khurram Karim Qureshi , Jianping Yu , Rehan Mehdi , Ahmed Muddassir Khan , Ma Rui","doi":"10.1016/j.sna.2025.116816","DOIUrl":"10.1016/j.sna.2025.116816","url":null,"abstract":"<div><div>In this study, a turbidity sensor utilizing a polymer optical fiber is fabricated through micromachining and coated with a gold film is presented and validated (termed mm-POF<sub>Au</sub>). The mm-POF<sub>Au</sub> turbidity sensor employs intensity modulation principles, leveraging alterations in transmitted light intensity induced by interactions with the light field and surface plasmon resonance phenomena. UV laser is used for micromachining to create a narrow groove structure, and subsequently, a uniform gold coating is applied to the fiber's sensor section. Examinations are conducted on the influence of the machining pitch on the sensor's turbidity response. The experimental results revealed that the mm-POF<sub>Au</sub> turbidity sensor exhibits a linear response behavior, exhibiting a resolution of approximately 0.04 NTU, with a functional detection range from 0 to 400 NTU. The sensor's output response is obtained when the machining pitch is set at 400 μm, accompanied by an enhanced sensitivity of 2.4 nW/NTU, thereby also contributing to a more stable performance. In addition to its precision and sensitivity, the sensor's repeatability and susceptibility to temperature variations are also meticulously characterized. Furthermore, this method paves the way for an indirect evaluation of turbidity by exploiting the variations in heat transfer rates attributable to escalating turbidity levels, thereby enriching the scope of turbidity assessment techniques.</div></div>","PeriodicalId":21689,"journal":{"name":"Sensors and Actuators A-physical","volume":"393 ","pages":"Article 116816"},"PeriodicalIF":4.1,"publicationDate":"2025-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144490798","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

Robust tracking control for fast steering mirror based on iterative learning enhanced 2-DOF disturbance observer 基于迭代学习增强二自由度扰动观测器的快速转向镜鲁棒跟踪控制

IF 4.1 3区工程技术

Sensors and Actuators A-physical Pub Date : 2025-06-18 DOI: 10.1016/j.sna.2025.116726

Wen Wang , Bowen Chen , Rui Xu , Dapeng Tian

{"title":"Robust tracking control for fast steering mirror based on iterative learning enhanced 2-DOF disturbance observer","authors":"Wen Wang , Bowen Chen , Rui Xu , Dapeng Tian","doi":"10.1016/j.sna.2025.116726","DOIUrl":"10.1016/j.sna.2025.116726","url":null,"abstract":"<div><div>This paper proposes a composite robust tracking control strategy for a fast steering mirror (FSM) with model uncertainty and repetitive external disturbances. A two-degree-of-freedom disturbance observer (2-DOF DOB) is proposed to achieve real-time estimation and compensation of disturbances. Compared with traditional DOB, the 2-DOF DOB enhances the gain of the outer-loop controller and improves the performance of the feedforward controller. To further enhance the estimation performance of the 2-DOF DOB for repetitive disturbances, an iterative learning law is incorporated into the design process. Subsequently, a trajectory tracking controller based on feedforward and <span><math><msub><mrow><mi>H</mi></mrow><mrow><mi>∞</mi></mrow></msub></math></span> method is proposed for the FSM system. Some comparative experiments are carried out on the FSM. The experimental results indicate that the proposed composite robust tracking control strategy demonstrates superior disturbance immunity and trajectory tracking performance compared to the traditional FSM control strategy.</div></div>","PeriodicalId":21689,"journal":{"name":"Sensors and Actuators A-physical","volume":"393 ","pages":"Article 116726"},"PeriodicalIF":4.1,"publicationDate":"2025-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144306349","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

Manufacturing parameter optimization of solid-state nitrate ion-selective sensors and their laboratory and field testing 固态硝酸离子选择性传感器的制造参数优化及其实验室和现场测试

IF 4.1 3区工程技术

Sensors and Actuators A-physical Pub Date : 2025-06-18 DOI: 10.1016/j.sna.2025.116810

Hongjie Jiang , Kang Lai , Jose Fernando Waimin , Aimin Tu , Jiang Lai , Ali Shakouri , Muhammad A. Alam , Rahim Rahimi

{"title":"Manufacturing parameter optimization of solid-state nitrate ion-selective sensors and their laboratory and field testing","authors":"Hongjie Jiang , Kang Lai , Jose Fernando Waimin , Aimin Tu , Jiang Lai , Ali Shakouri , Muhammad A. Alam , Rahim Rahimi","doi":"10.1016/j.sna.2025.116810","DOIUrl":"10.1016/j.sna.2025.116810","url":null,"abstract":"<div><div>The nitrate content is a crucial indicator for evaluating water quality and pollution levels, making monitoring essential. In this study, hundreds of nitrate ion-selective electrodes (<span><math><msubsup><mrow><mi>NO</mi></mrow><mrow><mn>3</mn></mrow><mrow><mo>−</mo></mrow></msubsup></math></span>-ISEs) were fabricated using a scalable manufacturing method for in-situ nitrate detection. This study investigated the impact of ion-selective membrane (ISM) geometry (e.g., thickness and surface area of the ISM) on the performance of ISEs. Potentiometric and electrochemical analyses demonstrated that ISEs with thinner ISMs or larger areas could complete their conditioning and achieve a stable potential within 12 h, compared to those with thicker ISMs or smaller areas. In particular, the increase in ISEs area enhanced long-term stability. The practical performance of the <span><math><mrow><msubsup><mrow><mi>NO</mi></mrow><mrow><mn>3</mn></mrow><mrow><mo>−</mo></mrow></msubsup><mi>ISEs</mi></mrow></math></span> were assessed in a simulated soil environment, aquaculture water containing bacteria in an indoor laboratory setting, and subsequently in water runoff from agricultural fields over two weeks, showing high accuracies comparable to those obtained using much more expensive commercial glass sensors.</div></div>","PeriodicalId":21689,"journal":{"name":"Sensors and Actuators A-physical","volume":"393 ","pages":"Article 116810"},"PeriodicalIF":4.1,"publicationDate":"2025-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144472118","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

Denoising of ultra-low temperature vibration sensors based on variational modal decomposition by Chicken Swarm Optimization 基于变分模态分解的超低温振动传感器去噪

IF 4.1 3区工程技术

Sensors and Actuators A-physical Pub Date : 2025-06-18 DOI: 10.1016/j.sna.2025.116732

Daren An , Qi An , Rui Zhou , Qi Cai , Yu Bai , Chong Shen , Huiliang Cao

引用次数: 0

Soft origami tripod based on electrohydraulic actuator for twisting motion 基于电液作动器扭转运动的软折纸三脚架

IF 4.1 3区工程技术

Sensors and Actuators A-physical Pub Date : 2025-06-18 DOI: 10.1016/j.sna.2025.116814

Sohyun Kim , Joohyeon Kang , Seunghoon Yoo , Youngsu Cha

{"title":"Soft origami tripod based on electrohydraulic actuator for twisting motion","authors":"Sohyun Kim , Joohyeon Kang , Seunghoon Yoo , Youngsu Cha","doi":"10.1016/j.sna.2025.116814","DOIUrl":"10.1016/j.sna.2025.116814","url":null,"abstract":"<div><div>The twisting motion is essential for its fundamental role in enabling efficient object manipulation. Motivated by this feature, this study proposes a novel soft origami tripod capable of twisting motion using electrohydraulic actuators. The soft origami tripod consists of an origami joint structure connected by three parallel Kresling pattern-supporters and electrohydraulic actuators. The actuator inflates instantaneously by an applied voltage and induces the deployment mechanism of the origami joint structure. By designing the origami joint structure according to the trajectory determined by the pattern, the proposed tripod stably achieves a helical twisting motion combining extension and rotation. At an input voltage of 10 kV, the tripod can accomplish a maximum linear strain of 265 % and a maximum rotation angle of 69°. Geometrical and kinematic mathematical models are presented to analyze the motion of the tripod. The model is experimentally validated to establish a relationship between strain and angle and to predict mechanical performances. Additionally, we conduct a series of experiments to investigate the continuous and stable twisting motion of the tripod.</div></div>","PeriodicalId":21689,"journal":{"name":"Sensors and Actuators A-physical","volume":"393 ","pages":"Article 116814"},"PeriodicalIF":4.1,"publicationDate":"2025-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144338594","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

Wrist-wearable blood flow meter by biomimetically structured conductive PDMS composite 仿生结构导电PDMS复合材料腕戴式血流计

IF 4.1 3区工程技术

Sensors and Actuators A-physical Pub Date : 2025-06-17 DOI: 10.1016/j.sna.2025.116813

Gyeong J. Jin , M. Mahabubur Rahman , Mookyoung Yoo , M. Jalal Uddin , Bappa Sarkar , Joon S. Shim

{"title":"Wrist-wearable blood flow meter by biomimetically structured conductive PDMS composite","authors":"Gyeong J. Jin , M. Mahabubur Rahman , Mookyoung Yoo , M. Jalal Uddin , Bappa Sarkar , Joon S. Shim","doi":"10.1016/j.sna.2025.116813","DOIUrl":"10.1016/j.sna.2025.116813","url":null,"abstract":"<div><div>Real-time diagnosis of cardiovascular disease is essential in its earliest stages due to reducing the uncertainty of death and heart attack. The wearable device have received significant attention for predicting arterial stiffness by detecting real-time heart pulse information. In this work, a two-layered biomimetic-flexible wearable sensor based on conductive polydimethylsiloxane (PDMS) has been developed to diagnose heart pulse signals. When the soft arterial expansion and compression applies pressure over the sensor embodied onto the wrist, the contact between the biomimetic patterns in the two layers of the sensor is ON and OFF, respectively, detecting, detailed heart pulse waves. Since the sensor's sensitivity in measuring pulse signal depends on the conductivity of the flexible biomimetic patterns, the structure of the patterns, including their length, diameter, and density is optimized to maximize the sensor performance. Finally, the proposed sensor is demonstrated to record the real-time heart pulse on the wrist artery and pulse wave velocity as a provision of the point-of- healthcare (PoHC).</div></div>","PeriodicalId":21689,"journal":{"name":"Sensors and Actuators A-physical","volume":"393 ","pages":"Article 116813"},"PeriodicalIF":4.1,"publicationDate":"2025-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144312565","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