Measurement最新文献_第5页

A 3D-printed sensing element based on fiber Bragg grating technology for grasping force measurement in surgical forceps 基于光纤布拉格光栅技术的 3D 打印传感元件，用于测量手术钳的抓取力

IF 5.2 2区工程技术

Measurement Pub Date : 2024-11-21 DOI: 10.1016/j.measurement.2024.116236

Francesca De Tommasi , Martina Pulcinelli , Carlo Massaroni , Alessio Gizzi , Sergio Silvestri , Emiliano Schena , Daniela Lo Presti

{"title":"A 3D-printed sensing element based on fiber Bragg grating technology for grasping force measurement in surgical forceps","authors":"Francesca De Tommasi , Martina Pulcinelli , Carlo Massaroni , Alessio Gizzi , Sergio Silvestri , Emiliano Schena , Daniela Lo Presti","doi":"10.1016/j.measurement.2024.116236","DOIUrl":"10.1016/j.measurement.2024.116236","url":null,"abstract":"<div><div>This study introduced a 3D-printed sensing element based on fiber Bragg grating (FBG) technology to measure grasping forces when integrated into surgical forceps during minimally invasive surgery (MIS). Its design mainly consists of an octagonal-shaped structure with a single FBG suspended within, the first to use fused deposition modeling technique in this application scenario. This novel solution allows improving the design customization and the structural robustness of the proposed sensing element. A finite element model was developed to study the mechanical behavior of the structure under transversal force (F) values experienced during grasping. Thermoplastic polyurethane material as printing filament enhanced the deformation capabilities of the sensor, thereby optimizing its response to F as evidenced by the value of sensitivity to F (i.e., 0.11 nm·N<sup>−1</sup>). Additionally, the sensing element exhibited a low hysteresis error (always below 14 %). Tests in controlled conditions confirmed the sensor capability to discriminate materials with different stiffness. Furthermore, the sensor was used as the sensing core of a surgical forceps prototype and tested during <em>ex vivo</em> experiments on hepatic, myocardial and spleen tissues simulating a MIS environment. The system was able to measure F during tissue grasping and the real-time feedback improved the tissue holding stability, important for reducing tissue damage risk during MIS procedures.</div></div>","PeriodicalId":18349,"journal":{"name":"Measurement","volume":"242 ","pages":"Article 116236"},"PeriodicalIF":5.2,"publicationDate":"2024-11-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142722529","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Fast simple determination of nitrogen in reduced graphene oxide by pulse furnace heating combined with thermal conductivity detection technique 通过脉冲炉加热结合热导检测技术快速简单地测定还原氧化石墨烯中的氮含量

IF 5.2 2区工程技术

Measurement Pub Date : 2024-11-21 DOI: 10.1016/j.measurement.2024.116272

Kuan Wang, Junhong Yang, Dongxu Gao, Zhe Zhang

{"title":"Fast simple determination of nitrogen in reduced graphene oxide by pulse furnace heating combined with thermal conductivity detection technique","authors":"Kuan Wang, Junhong Yang, Dongxu Gao, Zhe Zhang","doi":"10.1016/j.measurement.2024.116272","DOIUrl":"10.1016/j.measurement.2024.116272","url":null,"abstract":"<div><div>The fast accurately determining the contents of various elements in reduced graphene oxide (rGO) has long been the most important research topic in the field of analytical chemistry for a long time. In this study, a new method was developed for fast and simple determination of total nitrogen content in rGO via pulse furnace heating combined with a thermal conductivity detection technique. Two key parameters, extraction power and sample weight were optimized experimentally. A nitrogen release curve was obtained through pulse furnace heating combined with thermal conductivity detection. The quantification limit of nitrogen element was calculated based on the results of the multiple blank experiments, and the accuracy and precision of the new method were verified by measuring nitrogen contents in rGO samples. The accuracy of this method was verified through X-ray photoelectron spectroscopy and a CHNOS analyzer comparisons. This is the first study, in which pulse furnace heating combined with thermal conductivity detection was used to determine the total nitrogen content in rGO.</div></div>","PeriodicalId":18349,"journal":{"name":"Measurement","volume":"242 ","pages":"Article 116272"},"PeriodicalIF":5.2,"publicationDate":"2024-11-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142701535","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

A diaphragm secondary stress utilization method for increasing the sensitivity of piezoresistive pressure sensors without sacrificing linearity 在不牺牲线性度的情况下提高压阻式压力传感器灵敏度的膜片二次应力利用方法

IF 5.2 2区工程技术

Measurement Pub Date : 2024-11-21 DOI: 10.1016/j.measurement.2024.116271

Yuanying Zhang , Fengyun Liu , Xiaojing Wang , Xiubing Liang , Zheng Guo , Xiaoliang Luo , Jinjun Deng , Xingxu Zhang , Jian Luo , Binghe Ma

{"title":"A diaphragm secondary stress utilization method for increasing the sensitivity of piezoresistive pressure sensors without sacrificing linearity","authors":"Yuanying Zhang , Fengyun Liu , Xiaojing Wang , Xiubing Liang , Zheng Guo , Xiaoliang Luo , Jinjun Deng , Xingxu Zhang , Jian Luo , Binghe Ma","doi":"10.1016/j.measurement.2024.116271","DOIUrl":"10.1016/j.measurement.2024.116271","url":null,"abstract":"<div><div>Piezoresistive pressure sensors with high sensitivity and linearity are critical for aerospace and other industries, however, attempts to improve sensitivity often reduce linearity. Therefore a diaphragm secondary stress utilization method (DSSUM) is proposed, which can significantly increase sensor sensitivity without sacrificing the linearity. The DSSUM realizes the detection of primary and secondary stresses on the diaphragm through the eight-piezoresistor Wheatstone bridge without changing the structure of the diaphragm. A differential pressure sensor with a measurement range of −15 ∼ 15 kPa has been designed and fabricated based on DSSUM. Comparative test results show that DSSUM can increase the sensitivity of the sensor by 50.32 % to 32.35 mV/kPa while maintaining the linearity at 0.031 %F.S. The repeatability of the sensor is 0.02 %FS, the hysteresis is 0.01 %FS, and the zero drift is 0.052 %FS. By using DSSUM, both wide-range and small-range pressure sensors can increase their sensitivity by more than 50 % without impacting linearity. The DSSUM offers a new method for achieving high-performance pressure sensors and holds potential for wide application.</div></div>","PeriodicalId":18349,"journal":{"name":"Measurement","volume":"242 ","pages":"Article 116271"},"PeriodicalIF":5.2,"publicationDate":"2024-11-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142701075","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

An automatic rebar spacing measuring method based on the YOLOv8-GB model 基于 YOLOv8-GB 模型的钢筋间距自动测量方法

IF 5.2 2区工程技术

Measurement Pub Date : 2024-11-21 DOI: 10.1016/j.measurement.2024.116278

Jiayin Song , Teng Lu , Ting Liao , Zhuoyuan Jiang , Qinglin Zhu , Jinlong Wang , Liusong Yang , Hongwei Zhou , Wenlong Song

{"title":"An automatic rebar spacing measuring method based on the YOLOv8-GB model","authors":"Jiayin Song , Teng Lu , Ting Liao , Zhuoyuan Jiang , Qinglin Zhu , Jinlong Wang , Liusong Yang , Hongwei Zhou , Wenlong Song","doi":"10.1016/j.measurement.2024.116278","DOIUrl":"10.1016/j.measurement.2024.116278","url":null,"abstract":"<div><div>In engineering construction projects, rebar spacing measurement requires significant manual labor with low efficiency. This paper proposes a new intelligent rebar spacing measurement method based on the YOLOv8-GB model to save the workforce and improve efficiency. This method collects images of rebars to be measured using a binocular camera, utilizes the proposed YOLOv8-GB model to extract rebars from the scene, and achieves spacing measurement. The system is deployed on the NVIDIA Jetson TX2 NX for on-site portable measurement and can run in real-time at 24 frames per second. Experimental results show that the improved YOLOv8-GB network, compared with the YOLOv8n network, increased Recall, Precision, [email protected], and mAP50-95 by 0.6 %, 5.5 %, 2.3 %, and 7.6 %, respectively. The measurement system built with YOLOv8-GB achieved an average absolute error of ± 1.7 mm, ±2.1 mm, and ± 2.7 mm for rebar spacing measurements on three different ground textures, with average relative errors of 0.85 %, 0.93 %, and 1.32 %, meeting engineering requirements. Compared to the measurement system built with YOLOv8n, the average absolute error decreased by 37.0 %, 8.0 %, and 25.0 % under the three different ground textures, while the average relative error decreased by 36.1 %, 8.8 %, and 23.7 %, respectively.</div></div>","PeriodicalId":18349,"journal":{"name":"Measurement","volume":"242 ","pages":"Article 116278"},"PeriodicalIF":5.2,"publicationDate":"2024-11-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142701534","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Fault diagnosis method for harmonic reducer based on personalized federated aggregation strategy with skip cycle weight

IF 5.2 2区工程技术

Measurement Pub Date : 2024-11-21 DOI: 10.1016/j.measurement.2024.116275

Yulin Sun , Shouqiang Kang , Yujing Wang , Liansheng Liu , Wenmin Lv , Hongqi Wang

{"title":"Fault diagnosis method for harmonic reducer based on personalized federated aggregation strategy with skip cycle weight","authors":"Yulin Sun , Shouqiang Kang , Yujing Wang , Liansheng Liu , Wenmin Lv , Hongqi Wang","doi":"10.1016/j.measurement.2024.116275","DOIUrl":"10.1016/j.measurement.2024.116275","url":null,"abstract":"<div><div>In order to solve the problem of low fault diagnosis accuracy caused by the difference in data distribution between users of different harmonic reducers under data islands, a privacy-preserving fault diagnosis method for harmonic reducers based on personalized federated learning (PFL-HR) is proposed. First, a model construction method based on second aggregation is proposed to deploy personalized local models among users, reducing differences in data distribution. Second, a federated aggregation strategy based on cycle weight is proposed to update the global model parameters, accelerating the convergence of the global model. Finally, in the global model parameters distribution stage, a model parameters’ skip aggregation strategy is proposed to extend the training paradigm, further improving diagnosis accuracy. Through multiple groups of experiments on the harmonic reducer data collected from the self-built experimental platform, the results show that PFL-HR improves accuracy by an average of 6.08%. compared to other personalized federated learning methods.</div></div>","PeriodicalId":18349,"journal":{"name":"Measurement","volume":"242 ","pages":"Article 116275"},"PeriodicalIF":5.2,"publicationDate":"2024-11-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142744032","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Research on distributed monitoring system of intelligent highway based on weak fiber Bragg grating 基于弱光纤布拉格光栅的智能高速公路分布式监控系统研究

IF 5.2 2区工程技术

Measurement Pub Date : 2024-11-20 DOI: 10.1016/j.measurement.2024.116273

Lina Yue , Sheng Li , Fang Liu , Qiuming Nan , Dian Fan , Jinpeng Jiang , Juntao Wang , Qing Wang

引用次数: 0

Experimental study on mid-infrared CO transition lines broadened by N2, He, and H2 at elevated temperatures 关于高温下 N2、He 和 H2 扩宽的中红外 CO 过渡线的实验研究

IF 5.2 2区工程技术

Measurement Pub Date : 2024-11-20 DOI: 10.1016/j.measurement.2024.116264

Tielou Liu , Dong He , Renjie Li , Fei Li , Ting Si , Juchun Ding , Xisheng Luo

{"title":"Experimental study on mid-infrared CO transition lines broadened by N2, He, and H2 at elevated temperatures","authors":"Tielou Liu , Dong He , Renjie Li , Fei Li , Ting Si , Juchun Ding , Xisheng Luo","doi":"10.1016/j.measurement.2024.116264","DOIUrl":"10.1016/j.measurement.2024.116264","url":null,"abstract":"<div><div>Tunable diode laser absorption spectroscopy (TDLAS) has been established as a strong technique for high-fidelity measurements at elevated temperatures. However, the accuracy of the measured data using TDLAS depends on the accuracy of the spectroscopic parameters. In this paper, the N<sub>2</sub>-, He-, and H<sub>2</sub>-perturbed collisional broadening coefficients of the CO P(0, 21), P(1, 21), and P(0, 37) lines were measured at 1040–2980 K. Ar-diluted mixtures were applied to measure these spectroscopic parameters at elevated temperatures up to 3000 K. Validation experiments highlighted that the measured temperatures and CO concentrations agreed well with the known values under thermal equilibrium and nonequilibrium conditions. Comparisons of residuals in Voigt fitting highlighted that the N<sub>2</sub>-perturbed Dicke narrowing effects are stronger than the He- and H<sub>2</sub>-perturbed phenomena. The differences among species-perturbed high-temperature collisional broadening coefficients for the three transition lines were found to be closely related to the intermolecular forces and effective collision cross-sections.</div></div>","PeriodicalId":18349,"journal":{"name":"Measurement","volume":"242 ","pages":"Article 116264"},"PeriodicalIF":5.2,"publicationDate":"2024-11-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142701074","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

A ST-Copula method for highway traffic data interpolation in monitoring blind areas 用于监控盲区公路交通数据插值的 ST-Copula 方法

IF 5.2 2区工程技术

Measurement Pub Date : 2024-11-20 DOI: 10.1016/j.measurement.2024.116274

Haiyi Yang , Xiaohua Zhao , Sen Luan , Jianyu Qi

{"title":"A ST-Copula method for highway traffic data interpolation in monitoring blind areas","authors":"Haiyi Yang , Xiaohua Zhao , Sen Luan , Jianyu Qi","doi":"10.1016/j.measurement.2024.116274","DOIUrl":"10.1016/j.measurement.2024.116274","url":null,"abstract":"<div><div>A comprehensive understanding of the traffic situation in the Monitoring Blind Areas (MBA) of highway is very important for traffic management. However, the complete absence of historical data renders conventional traffic data imputation methods, including tensor decomposition and deep learning algorithms, ineffective. In this paper, a Spatio-temporal Copula (ST-Copula) method is proposed based on the theory of spatial statistics to interpolate traffic data in MBA. Firstly, based on the data series of observation points, the corresponding marginal distribution functions are obtained by data fitting. These marginal functions then be aggregated into a joint function using Copula theory. Secondly, a spatiotemporal correlation matrix is constructed with the spatial variation function to describe the dependent structure of the traffic data, and the maximum likelihood method is adopted to estimate the parameters. Finally, conditional probability density function is constructed according to the spatial location, and Monte-Carlo sampling is applied to deduce the traffic data of the MBA. Based on the above methodology, speed data from a freeway in Zhejiang Province are collected to evaluate the effectiveness of the ST-Copula model. The results showed that compared to Kriging and Copula-based methods, the ST-Copula achieves reductions of 36.4 % and 34.8 % in MAPE and RMSE values, respectively, across various conditions. ST-Copula reduces the limitations of inherent Gaussian assumptions in traditional spatial statistical methods, demonstrating robustness in handling high spatiotemporal variability. The proposed method demonstrates the feasibility of inferring global traffic conditions from limited observations, effectively allowing the monitoring of entire road networks using fewer detectors, thereby reducing road construction costs and rapid response to emergencies.</div></div>","PeriodicalId":18349,"journal":{"name":"Measurement","volume":"242 ","pages":"Article 116274"},"PeriodicalIF":5.2,"publicationDate":"2024-11-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142701069","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Vision-based identification of tire inflation pressure using Tire-YOLO and deflection 利用 Tire-YOLO 和挠度进行基于视觉的轮胎充气压力识别

IF 5.2 2区工程技术

Measurement Pub Date : 2024-11-20 DOI: 10.1016/j.measurement.2024.116228

Jie Zhang , Jiaqiang Peng , Xuan Kong , Lu Deng , Eugene J. OBrien

引用次数: 0

Gas-liquid flow rates measurement based on dual differential pressures of a power-driven swirler 基于动力驱动漩涡器双压差的气液流速测量技术

IF 5.2 2区工程技术

Measurement Pub Date : 2024-11-20 DOI: 10.1016/j.measurement.2024.116276

Haocun Wang, Qiang Xu, Xuemei Zhang, Xiaojun Ma, Lulu Li, Liejin Guo

{"title":"Gas-liquid flow rates measurement based on dual differential pressures of a power-driven swirler","authors":"Haocun Wang, Qiang Xu, Xuemei Zhang, Xiaojun Ma, Lulu Li, Liejin Guo","doi":"10.1016/j.measurement.2024.116276","DOIUrl":"10.1016/j.measurement.2024.116276","url":null,"abstract":"<div><div>In recent years, swirlers have gained increasing attention in gas–liquid flow rates measurement. A power-driven swirler device is designed suitable for low gas–liquid flow rates conditions. Variation characteristics of swirler differential pressure (<span><math><mrow><mi>Δ</mi><msub><mi>P</mi><mi>s</mi></msub></mrow></math></span>) and radial differential pressure (<span><math><mrow><mi>Δ</mi><msub><mi>P</mi><mi>r</mi></msub></mrow></math></span>) are investigated under three swirler rotational speeds (0, 300, and 600 rpm). An average reduction of 9 % and 15 % can be seen in fluctuations of <span><math><mrow><mi>Δ</mi><msub><mi>P</mi><mi>s</mi></msub></mrow></math></span> and <span><math><mrow><mi>Δ</mi><msub><mi>P</mi><mi>r</mi></msub></mrow></math></span> signals, respectively. Wider measurement range can be achieved by increasing the rotational speed, the minimum liquid superficial velocity decreases from 1.53 m/s to 1.02 m/s and the maximum gas volume fraction increases from 41.8 % to 51.9 %. Then, a new gas–liquid flow rate measurement model is established considering the gas–liquid slip and interfacial interaction. As the rotational speed increases from 0 to 600 rpm, the relative errors of liquid and gas mass flow rates decrease from ± 3.4 % to ± 2.7 % and ± 24 % to ± 10 %, respectively.</div></div>","PeriodicalId":18349,"journal":{"name":"Measurement","volume":"242 ","pages":"Article 116276"},"PeriodicalIF":5.2,"publicationDate":"2024-11-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142701076","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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