IEEE Instrumentation & Measurement Magazine最新文献

Measurement Methodology: Blade Tip Timing: A Non-Contact Blade Vibration Measurement Method 测量方法：叶片尖端定时：非接触式叶片振动测量方法

IF 2.1 4区工程技术

IEEE Instrumentation & Measurement Magazine Pub Date : 2023-12-01 DOI: 10.1109/MIM.2023.10328672

Haoqi Li, Shuming Wu, Zhibo Yang, Ruqiang Yan, Xuefeng Chen

{"title":"Measurement Methodology: Blade Tip Timing: A Non-Contact Blade Vibration Measurement Method","authors":"Haoqi Li, Shuming Wu, Zhibo Yang, Ruqiang Yan, Xuefeng Chen","doi":"10.1109/MIM.2023.10328672","DOIUrl":"https://doi.org/10.1109/MIM.2023.10328672","url":null,"abstract":"Rotor blades are widely used in large turbine equipment such as aero-engines and gas turbines. The stable operation of these machines is largely dependent on the condition of the blades. In gas turbines and compressors, blade failure is mostly caused by foreign object damage (FOD), manufacturing defects and material defects. To ensure the rationality of blade design and the stability of the whole system, reliable blade on-line monitoring is the foundation [1]. Blade tip timing (BTT) is a potential method of blade vibration monitoring. It does not need to contact the blade, which can realize the whole-stage blade vibration monitoring by a few numbers of probes. The traditional method of vibration monitoring with strain gauges requires the complex telemetry system and even adjustment of the rotor structure. In contrast, the BTT method is simple and efficient; however, the disadvantage is that the signal is under-sampled. Various methods have been developed in recent decades to overcome undersampling. In this article, you will see how to sample blade tip displacement using the BTT method, what constitutes a BTT measurement system, and how to overcome undersampling and extract the vibration parameters from BTT signals.","PeriodicalId":55025,"journal":{"name":"IEEE Instrumentation & Measurement Magazine","volume":" 16","pages":"12-20"},"PeriodicalIF":2.1,"publicationDate":"2023-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138615919","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Fundamentals in Measurement: Looking Out for Number 1 测量基础知识：关注数字 1

IF 2.1 4区工程技术

IEEE Instrumentation & Measurement Magazine Pub Date : 2023-12-01 DOI: 10.1109/MIM.2023.10328673

Richard Davis

引用次数: 0

Addressing Non-Idealities and EIS Measurement: From Inspection to Implementation 解决非理想状态和 EIS 测量：从检查到实施

IF 2.1 4区工程技术

IEEE Instrumentation & Measurement Magazine Pub Date : 2023-12-01 DOI: 10.1109/MIM.2023.10328669

Aatha Mohin Shaikh, R. Patel, M. Vinchurkar, Rajul S. Patkar, A. Adami, Flavio Giacomozzi, Leandro Lorenzelli, M. Baghini

{"title":"Addressing Non-Idealities and EIS Measurement: From Inspection to Implementation","authors":"Aatha Mohin Shaikh, R. Patel, M. Vinchurkar, Rajul S. Patkar, A. Adami, Flavio Giacomozzi, Leandro Lorenzelli, M. Baghini","doi":"10.1109/MIM.2023.10328669","DOIUrl":"https://doi.org/10.1109/MIM.2023.10328669","url":null,"abstract":"Gold interdigitated electrode (IDE) structure is one of the commonly-used platforms for sensing. The response of IDE-based sensors is measured in different ways, of which non-faradaic electrochemical impedance spectroscopy (nf-EIS) is specially used to extract the analytes impedance characteristics without redox labels. Many research projects across various disciplines need students from different domains, such as Electrical Engineering, Chemistry, and/or Biology, to experience electrical measurements that can easily go wrong without notice. It is crucial to evaluate the intrinsic and extrinsic constraints that need to be resolved to get reliable and high-quality nf-EIS measurements, which are also reproducible in the presence of noise and other sources of error. This article provides examples and summarizes how to systematically address the effect of the commonly existing non-idealities to enable any student to get confidence in the interpretation and reliability of nf-EIS measurements they perform. As part of our experimental analysis demonstration, various conditions and volume optimization for adequate measurements are performed.","PeriodicalId":55025,"journal":{"name":"IEEE Instrumentation & Measurement Magazine","volume":" 9","pages":"45-52"},"PeriodicalIF":2.1,"publicationDate":"2023-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138610048","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Dual-Using AC-DC Transfer Standard for Characterization of Precision Shunt 用于鉴定精密分流器的交直流双用传输标准

IF 2.1 4区工程技术

IEEE Instrumentation & Measurement Magazine Pub Date : 2023-12-01 DOI: 10.1109/MIM.2023.10328621

V. Isaiev

引用次数: 0

Education I&M: Seeing Phase Truncation Spurs in the Output of Direct Digital Synthesizers 教育 I&M：从直接数字合成器的输出中看到相位截断刺

IF 2.1 4区工程技术

IEEE Instrumentation & Measurement Magazine Pub Date : 2023-12-01 DOI: 10.1109/MIM.2023.10328618

S. Engelberg

引用次数: 0

Women Inengineering: AI and the Empowerment of Gender Equality 妇女参与工程：人工智能与促进性别平等

IF 2.1 4区工程技术

IEEE Instrumentation & Measurement Magazine Pub Date : 2023-12-01 DOI: 10.1109/MIM.2023.10328674

Veronica Scotti

引用次数: 0

Evaluation and Identification of Non-Line of Sight Conditions in UWB Systems 评估和识别 UWB 系统中的非视线条件

IF 2.1 4区工程技术

IEEE Instrumentation & Measurement Magazine Pub Date : 2023-12-01 DOI: 10.1109/MIM.2023.10328670

S. Romaniuk, Zdzisław Gosiewski

引用次数: 0

A LOW-Cost Multi-Frequency Testing Platform for Non-Contact Vibration Measurement 一种低成本的非接触式多频振动测试平台

4区工程技术

IEEE Instrumentation & Measurement Magazine Pub Date : 2023-11-01 DOI: 10.1109/mim.2023.10292625

Yuansheng Cheng, Zufeng Zhang, Grzegorz M. Królczyk, Sifa Zheng, Zhixiong Li

{"title":"A LOW-Cost Multi-Frequency Testing Platform for Non-Contact Vibration Measurement","authors":"Yuansheng Cheng, Zufeng Zhang, Grzegorz M. Królczyk, Sifa Zheng, Zhixiong Li","doi":"10.1109/mim.2023.10292625","DOIUrl":"https://doi.org/10.1109/mim.2023.10292625","url":null,"abstract":"The machine vision-based non-contact vibration measurement is currently one of the hottest research topics in the instrumentation and measurement field. Single-frequency experiments are usually used to evaluate the non-contact measurement quality; however, in reality, it is difficult/impossible to quantify the non-contact vibration measurement using a single-frequency excitation. To bridge this research gap, this work designs and tests a low-cost platform to produce multi-frequency vibrations for evaluating the non-contact vibration measurement. In this platform, a double-rail sliding mechanism is designed to convert the circular motion of a servo motor into linear motion. The pulse+ direction control method is applied to the servo motor to produce multi-frequency and multi-amplitude vibration excitations. Thanks to the simplicity of the sliding mechanism, common and inexpensive mechanical and instrumentation devices can be used to construct the testing platform, and the low-cost feature of the developed platform make it ubiquitously applicable for practice. Lastly, the vibration characteristics of the platform are analyzed, and three sets of vibration tests using different frequency bands are performed. The experimental results verify that the vibration responses of the platform are well consistent with the theoretical results, which can be used as a new solution that allows non-contact vibration quantification.","PeriodicalId":55025,"journal":{"name":"IEEE Instrumentation & Measurement Magazine","volume":"401 6","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135111838","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

IMS Awards: An Innovative Data-Driven Reliability Life Cycle for Complex Systems IMS奖项:复杂系统的创新数据驱动可靠性生命周期

4区工程技术

IEEE Instrumentation & Measurement Magazine Pub Date : 2023-11-01 DOI: 10.1109/mim.2023.10292592

Gabriele Patrizi

引用次数: 0

Research on Vibration Analysis and Online Monitoring Technology of Transmission Tower Near Railway 铁路附近输电塔振动分析与在线监测技术研究

4区工程技术

IEEE Instrumentation & Measurement Magazine Pub Date : 2023-11-01 DOI: 10.1109/mim.2023.10292619

Xinbo Huang, Zhicheng Liu, Long Zhao, Peng Yuan, Ye Zhang

{"title":"Research on Vibration Analysis and Online Monitoring Technology of Transmission Tower Near Railway","authors":"Xinbo Huang, Zhicheng Liu, Long Zhao, Peng Yuan, Ye Zhang","doi":"10.1109/mim.2023.10292619","DOIUrl":"https://doi.org/10.1109/mim.2023.10292619","url":null,"abstract":"The transmission line is the key facility of power grid systems all over the world. The transmission tower is an important part of the transmission line. Vibration response analysis can be applied to structural health monitoring, since environmental factors and external excitation will have a certain impact on the accuracy of mode. Tower 126 of the Xinjiang Guangfang line is close to the train track, and external excitation will be generated when the train passes, so it is important to study the influence of the train on the tower. This study conducts dynamic response experiments on the transmission tower. To identify the modal parameters of the tower under different states, an automatic modal identification method of the tower is used to process the vibration acceleration signal. It is found that train excitation will stimulate high order modes. The tower mode will decrease as the train passes, and the third and eighth natural frequencies change obviously. The influence of train excitation on the mode of transmission tower leads to the misjudgment of the structural health of the transmission tower by the monitoring device. After the train passes through the transmission tower, if the tower is not permanently damaged due to train excitation, the structure can still be restored to its original state after a certain time. Therefore, the authors design and optimize the vibration monitoring device of the Guangfang line tower to avoid power safety accidents.","PeriodicalId":55025,"journal":{"name":"IEEE Instrumentation & Measurement Magazine","volume":"402 4","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135112058","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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