Measurement最新文献_第10页

Modeling and measurement of non-uniform magnetic fields of a diametrically magnetized annular permanent magnet 直径磁化环形永磁体非均匀磁场的建模与测量

IF 5.2 2区工程技术

Measurement Pub Date : 2025-04-15 DOI: 10.1016/j.measurement.2025.117495

Zhiming Guo , Tiefeng Li , Qihong Fang , Yi Huang , Yanghui Xiang , Liang Liang

{"title":"Modeling and measurement of non-uniform magnetic fields of a diametrically magnetized annular permanent magnet","authors":"Zhiming Guo , Tiefeng Li , Qihong Fang , Yi Huang , Yanghui Xiang , Liang Liang","doi":"10.1016/j.measurement.2025.117495","DOIUrl":"10.1016/j.measurement.2025.117495","url":null,"abstract":"<div><div>Permanent magnet (PM) driven capsule robots represent a significant advancement in the real-time diagnosis and treatment of gastrointestinal issues. Permanent magnets are advantageous due to their small size, simple structure, and high magnetic field strength. Their non-uniform magnetic fields can generate torque on the capsule robot, allowing for precise control over its position and orientation to navigate the complexities of human stomach and intestines. In this study, we employed the equivalent magnetic charge method to create a model for calculating and analyzing the spatial magnetic field distribution of a diametrically magnetized annular permanent magnet, which can be used appropriately to drive capsule robots. Additionally, a Hall-type magnetic flux density measurement system was set up to gauge the radial magnetic flux density of a rotating annular permanent magnet. We also established a three-dimensional (3D) finite element analysis model within Maxwell software to conduct numerical simulations of the magnetic field of the annular permanent magnet. The results from our theoretical calculation align closely with both the measured and finite element analysis results, confirming the accuracy and reliability of our model. Furthermore, we quantitatively analyzed the three-dimensional magnetic flux density at various points in the external space surrounding the permanent magnet and influencing factors. The results of this research will offer valuable theoretical support for designing and developing magnetic materials and devices, and serve as a reference for the driving methods of magnetically driven capsule endoscopes, magnetic soft continuum robots, and other medical devices.</div></div>","PeriodicalId":18349,"journal":{"name":"Measurement","volume":"253 ","pages":"Article 117495"},"PeriodicalIF":5.2,"publicationDate":"2025-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143843332","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

Angle weighted sign coherence factor-based ultrasonic fusion imaging for crack detection 基于角度加权符号相干因子的裂纹超声融合成像

IF 5.2 2区工程技术

Measurement Pub Date : 2025-04-15 DOI: 10.1016/j.measurement.2025.117594

Jingxun Zhou, Jie Xue, Xiaoyang Bi, Ning Hu

引用次数: 0

Active sound profiling of engine noise inside a vehicle based on the HPSC-FxLMS algorithm 基于HPSC-FxLMS算法的汽车发动机噪声主动声分析

IF 5.2 2区工程技术

Measurement Pub Date : 2025-04-15 DOI: 10.1016/j.measurement.2025.117580

Ziheng Xia, Yansong He, Hao Chen, Zhifei Zhang, Xiaoyu Fu

{"title":"Active sound profiling of engine noise inside a vehicle based on the HPSC-FxLMS algorithm","authors":"Ziheng Xia, Yansong He, Hao Chen, Zhifei Zhang, Xiaoyu Fu","doi":"10.1016/j.measurement.2025.117580","DOIUrl":"10.1016/j.measurement.2025.117580","url":null,"abstract":"<div><div>Active sound profiling (ASP) can mitigate the negative impacts of excessive interior noise and satisfy people’s pursuit of acoustical comfort. However, in ASP of engine noise, the existing algorithms are susceptible to the modeling errors of the secondary paths and suffer from insufficient accuracy due to frequency fluctuation. This paper introduces a phase-scheduled command filtered-x least mean square algorithm based on the Hilbert transform (HPSC-FxLMS) to address the above issues. The proposed algorithm modifies the internal model structure of the PSC-FxLMS algorithm by integrating an autonomous PSC system. This avoids the impact of secondary paths modeling error on the stability of the ASP system. Moreover, the HPSC-FxLMS algorithm identifies the desired orders within primary noise by bandpass filters, and align the command signal phases to the desired order phases more accurately. This synchronization enables the secondary source to achieve the predefined objective with less control effort. Numerical simulations demonstrate that the HPSC-FxLMS algorithm is robust to the frequency fluctuation of engine noise because of the precise phase scheduling of the command signal phases. Further, the multi-channel on-board experiments are conducted. Compared to the conventional Command-FxLMS algorithm, when the vehicle is driven in the semi-anechoic chamber at 1700 rpm, the 2nd order secondary output of the HPSC-FxLMS is reduced by over 50 %. Whereas when the vehicle is driven on roads at 2550 rpm, the 2nd order and 6th order secondary outputs of the HPSC-FxLMS are reduced by 40 %. The results verify the effectiveness and applicability of the HPSC-FxLMS algorithm.</div></div>","PeriodicalId":18349,"journal":{"name":"Measurement","volume":"253 ","pages":"Article 117580"},"PeriodicalIF":5.2,"publicationDate":"2025-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143855159","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 dynamic zonal method based on KD-tree for calibration of five-hole probe under large flow angles 大流角下基于kd树的五孔探头动态分层标定方法

IF 5.2 2区工程技术

Measurement Pub Date : 2025-04-15 DOI: 10.1016/j.measurement.2025.117598

Yueren Zuo , Haideng Zhang , Yun Wu , Yinghong Li

引用次数: 0

Evaluating safety in Dublin’s bike-sharing system using the concept of intuitionistic fuzzy rough power aggregation operators 基于直觉模糊粗功率聚合算子的都柏林共享单车系统安全评价

IF 5.2 2区工程技术

Measurement Pub Date : 2025-04-15 DOI: 10.1016/j.measurement.2025.117553

Muhammad Rizwan Khan , Kifayat Ullah , Ali Raza , Zeeshan Ali , Tapan Senapati , Domokos Esztergár-Kiss , Sarbast Moslem

{"title":"Evaluating safety in Dublin’s bike-sharing system using the concept of intuitionistic fuzzy rough power aggregation operators","authors":"Muhammad Rizwan Khan , Kifayat Ullah , Ali Raza , Zeeshan Ali , Tapan Senapati , Domokos Esztergár-Kiss , Sarbast Moslem","doi":"10.1016/j.measurement.2025.117553","DOIUrl":"10.1016/j.measurement.2025.117553","url":null,"abstract":"<div><div>The multi-attribute group decision-making (MAGDM) process plays a pivotal role in identifying the most suitable solutions when faced with conflicting criteria. This study applies MAGDM to address safety concerns within Dublin’s bike-sharing system by incorporating innovative methods that effectively manage ambiguous and uncertain information. By utilizing Aczel-Alsina (AA) aggregation operators (AOs) within the intuitionistic fuzzy (IF) rough (IFR) framework, we mitigate information loss typically encountered during decision-making processes. The idea of the IFR set is a prestigious tool to express human thought in the shape of lower and upper approximation spaces. Where the ordinary intuitionistic fuzzy set failed to aggregat IFR information by inspiring the idea of IFR, the set introduces the IFR AA power-weighted averaging and geometric operators, both vital in aggregating uncertain and asymmetric data. These newly developed operators are used to evaluate safety improvements for Dublin’s bike-sharing system. Criteria such as infrastructure, user behaviour, maintenance, technology, and emergency response are assessed, with alternative solutions presented to ensure optimal safety improvements. Our results demonstrate the superiority of IFR AA-based AOs in addressing complex safety challenges in urban bike-sharing systems.</div></div>","PeriodicalId":18349,"journal":{"name":"Measurement","volume":"253 ","pages":"Article 117553"},"PeriodicalIF":5.2,"publicationDate":"2025-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143847294","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

Bioinspired weak magnetic vector sensor for analysis and measurement of geomagnetic field parameters 用于分析和测量地磁场参数的生物弱磁矢量传感器

IF 5.2 2区工程技术

Measurement Pub Date : 2025-04-14 DOI: 10.1016/j.measurement.2025.117563

Hongkai Shi , Ruiqi Tang , Qingmeng Wang , Tao Song

引用次数: 0

Interfacial wave parameters measurement based on flow noise decoupling in horizontal annular flow 水平环形流动中基于流动噪声解耦的界面波参数测量

IF 5.2 2区工程技术

Measurement Pub Date : 2025-04-14 DOI: 10.1016/j.measurement.2025.117582

Ning Zhao , Wendi Ma , Xiayan Jiang , Qing Wang , Xinlong Li , Lide Fang , Fan Wang

{"title":"Interfacial wave parameters measurement based on flow noise decoupling in horizontal annular flow","authors":"Ning Zhao , Wendi Ma , Xiayan Jiang , Qing Wang , Xinlong Li , Lide Fang , Fan Wang","doi":"10.1016/j.measurement.2025.117582","DOIUrl":"10.1016/j.measurement.2025.117582","url":null,"abstract":"<div><div>Annular flow is a typical gas–liquid two-phase flow pattern, where interface behavior characteristics significantly affect the stable operation of devices. Interfacial wave parameters reflect the spatial behavior of interfacial wave fluctuations, making them essential for studying annular flow mechanisms. This study designs the measurement method for interfacial wave parameters depending on acoustic emission technique. The interfacial wave parameters of a horizontal pipe’s annular flow are measured experimentally under various flow conditions. The noise signals of annular flow with various flow conditions are measured, and the Whale Optimization Algorithm for Variational Mode Decomposition is used to evaluate the acoustic emission signals. By analyzing the initial signals’ energy and entropy, the decoupling of annular flow noise is achieved. The disturbance wave frequency and disturbance wave velocity are determined by analyzing the flow noise signals in the time domain. Reynolds number and intrinsic mode component energy are extracted, then the CatBoost algorithm is used to create a prediction model for the frequency and velocity of disturbance waves in annular flow. The results show that the MAPE of the disturbance wave frequency prediction model is 9.84 %, with 85.00 % of the experimental points having a relative error within ± 15 % band. The MAPE of the disturbance wave velocity prediction model is 4.31 %, with 95.00 % of the experimental points having a relative error within ± 15 % band.</div></div>","PeriodicalId":18349,"journal":{"name":"Measurement","volume":"253 ","pages":"Article 117582"},"PeriodicalIF":5.2,"publicationDate":"2025-04-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143843284","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

Innovative prototype design and benchmarking for vibration displacement measurement ranging from sub-micron to micron via laser self-mixing interference 基于激光自混合干涉的亚微米到微米振动位移测量的创新原型设计和基准测试

IF 5.2 2区工程技术

Measurement Pub Date : 2025-04-14 DOI: 10.1016/j.measurement.2025.117528

Yuanfu Tan , Mubasher Ali , Zhou Su , Feng Lin , Wei-Hsin Liao , Hay Wong

{"title":"Innovative prototype design and benchmarking for vibration displacement measurement ranging from sub-micron to micron via laser self-mixing interference","authors":"Yuanfu Tan , Mubasher Ali , Zhou Su , Feng Lin , Wei-Hsin Liao , Hay Wong","doi":"10.1016/j.measurement.2025.117528","DOIUrl":"10.1016/j.measurement.2025.117528","url":null,"abstract":"<div><div>Vibration displacement measurement is crucial in disciplines such as structural engineering, mechanical systems analysis, and condition monitoring. Laser vibrometers are commonly employed for assessing object vibration characteristics without physical contact. However, these devices typically require extra optical components or variable attenuators to manage optical power, resulting in increased cost and system complexity. This limitation impedes their broad application, particularly in constrained environments. In this study, a novel self-mixing prototype is introduced for measuring speaker vibration displacement via laser self-mixing interference. By utilizing a <em>retro</em>-reflective tape with prism reflection to enhance the self-mixing signal, the prototype achieves accurate vibration displacement measurement across various amplitudes and frequencies. The self-mixing prototype demonstrate the capability to deliver precise measurement ranging from 630 nm to 100.170 µm, with an investigation into the impact of laser wavelength on vibration displacement measurement. To assess its efficacy, a 3D scanning vibrometer serves as a benchmark, revealing an accuracy rate of up to 98.06 % in vibration displacement measurement for the self-mixing prototype. This study introduces a cost-effective and compact alternative that provides accurate vibration displacement measurement, rendering it suitable for applications such as vibration analysis, rail monitoring, and quality control. By streamlining the measurement process and reducing complexity, the self-mixing prototype emerges as a promising solution for industries requiring precise vibration measurement.</div></div>","PeriodicalId":18349,"journal":{"name":"Measurement","volume":"253 ","pages":"Article 117528"},"PeriodicalIF":5.2,"publicationDate":"2025-04-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143843947","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 super-low-cost and ultra-localized hotspots temperature sensor with GO-PDMS-AuNPs stacked material on the tip of single-mode fiber 在单模光纤尖端采用GO-PDMS-AuNPs堆叠材料的超低成本超局部热点温度传感器

IF 5.2 2区工程技术

Measurement Pub Date : 2025-04-14 DOI: 10.1016/j.measurement.2025.117475

Peng Gao, Yibo Cao, Xiuyan Chen, Yuting Zhou, Hongbo Wang, Zhiyuan Wang

{"title":"A super-low-cost and ultra-localized hotspots temperature sensor with GO-PDMS-AuNPs stacked material on the tip of single-mode fiber","authors":"Peng Gao, Yibo Cao, Xiuyan Chen, Yuting Zhou, Hongbo Wang, Zhiyuan Wang","doi":"10.1016/j.measurement.2025.117475","DOIUrl":"10.1016/j.measurement.2025.117475","url":null,"abstract":"<div><div>Currently, among commercial optical fiber temperature sensors, fiber Bragg grating sensors, fluorescence-based sensors, and semiconductor absorption-based sensors used for single-point temperature measurement respectively have problems such as temperature-strain cross-sensitivity, limited spatial resolution, incompatibility with fiber optic communication networks, short transmission distances, and high costs.</div><div>Therefore, this paper proposes an innovative solution. This sensor is based on the principle of two − beam interference. Using PDMS as the temperature sensitive material, a GO-PDMS-AuNPs laminated composite film is integrated on the end face of the FC/UPC ceramic ferrule of a single − mode fiber optic patch cord to measure temperature. Experiments show that the sensor exhibits excellent performance under different ratios of PDMS to the diluent and spin-coating parameters. For example, when the ratio of PDMS to the diluent is 9:1 and the spin − coating speed is 1500 rpm, the sensitivity reaches 158.90 pm/°C in the temperature range of 40.5 °C − 43 °C, with a linearity of 0.99242. In the range of 45.5 °C − 48 °C, the sensitivity is 198.99 pm/°C, with a linearity of 0.99797. The temperature detection resolution is 0.05 °C, and the response time is approximately 30 s.</div><div>This sensor is stress-immune, compatible with fiber optic communication networks, plug-and-play, has high spatial resolution, and is easy to manufacture in batches. It is suitable for local hotspot temperature measurement in multiple fields. It is convenient to demodulate and has a low cost, and is expected to be a strong candidate for the next generation of commercial optical fiber temperature sensors.</div></div>","PeriodicalId":18349,"journal":{"name":"Measurement","volume":"253 ","pages":"Article 117475"},"PeriodicalIF":5.2,"publicationDate":"2025-04-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143850421","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

Fiber-optic differential pressure sensor for deep-sea large pressure background conditions 深海大压力背景条件下的光纤差压传感器

IF 5.2 2区工程技术

Measurement Pub Date : 2025-04-14 DOI: 10.1016/j.measurement.2025.117583

Xujin Li , Yiguang Yang , Haodong Liu , Xuan Cao , Weihong Zhang , Yibo Yuan , Haofeng Hu , Degang Xu , Tiegen Liu , Hongzhi Li , Yan Liu , Jianquan Yao

引用次数: 0