Yang Yang , Haiqing Deng , Liang Zhu , Minzhong Qi , Liansheng Du , Hao Han , Jia Fu , Yong Cheng
{"title":"基于视觉的机器人EAST运动斯塔克效应诊断标定系统","authors":"Yang Yang , Haiqing Deng , Liang Zhu , Minzhong Qi , Liansheng Du , Hao Han , Jia Fu , Yong Cheng","doi":"10.1016/j.net.2025.103929","DOIUrl":null,"url":null,"abstract":"<div><div>Precise calibration of Motional Stark Effect (MSE) diagnostic sightline is fundamental for reliable plasma current density measurements in EAST tokamak. This paper presents the development and experimental validation of a vision-based robotic system for automatic MSE calibration. The proposed system integrates a 6 degree-of-freedom industrial manipulator with computer vision techniques to achieve three key advancements: (1) automated measurement of sightline pose, (2) polarized light generation and alignment, and (3) synchronized acquisition of optical transmission system responses. The calibration robot system was validated by workspace simulation, test bench in laboratory and practical deployment for MSE calibration within the EAST vacuum vessel during the 2024 and 2025 experimental campaigns. Compared to traditional calibration methods (based on 2021 and 2023 campaign data), the proposed robotic calibration system demonstrates significantly improved performance, by reducing the average sightline pose measurement repeatability deviation from 12.1 mm to 2.0 mm.</div></div>","PeriodicalId":19272,"journal":{"name":"Nuclear Engineering and Technology","volume":"58 2","pages":"Article 103929"},"PeriodicalIF":2.6000,"publicationDate":"2025-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"A vision-based robotic calibration system for the EAST motional Stark effect diagnostic\",\"authors\":\"Yang Yang , Haiqing Deng , Liang Zhu , Minzhong Qi , Liansheng Du , Hao Han , Jia Fu , Yong Cheng\",\"doi\":\"10.1016/j.net.2025.103929\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><div>Precise calibration of Motional Stark Effect (MSE) diagnostic sightline is fundamental for reliable plasma current density measurements in EAST tokamak. This paper presents the development and experimental validation of a vision-based robotic system for automatic MSE calibration. The proposed system integrates a 6 degree-of-freedom industrial manipulator with computer vision techniques to achieve three key advancements: (1) automated measurement of sightline pose, (2) polarized light generation and alignment, and (3) synchronized acquisition of optical transmission system responses. The calibration robot system was validated by workspace simulation, test bench in laboratory and practical deployment for MSE calibration within the EAST vacuum vessel during the 2024 and 2025 experimental campaigns. Compared to traditional calibration methods (based on 2021 and 2023 campaign data), the proposed robotic calibration system demonstrates significantly improved performance, by reducing the average sightline pose measurement repeatability deviation from 12.1 mm to 2.0 mm.</div></div>\",\"PeriodicalId\":19272,\"journal\":{\"name\":\"Nuclear Engineering and Technology\",\"volume\":\"58 2\",\"pages\":\"Article 103929\"},\"PeriodicalIF\":2.6000,\"publicationDate\":\"2025-09-26\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Nuclear Engineering and Technology\",\"FirstCategoryId\":\"5\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S1738573325004978\",\"RegionNum\":3,\"RegionCategory\":\"工程技术\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"NUCLEAR SCIENCE & TECHNOLOGY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Nuclear Engineering and Technology","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S1738573325004978","RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"NUCLEAR SCIENCE & TECHNOLOGY","Score":null,"Total":0}
A vision-based robotic calibration system for the EAST motional Stark effect diagnostic
Precise calibration of Motional Stark Effect (MSE) diagnostic sightline is fundamental for reliable plasma current density measurements in EAST tokamak. This paper presents the development and experimental validation of a vision-based robotic system for automatic MSE calibration. The proposed system integrates a 6 degree-of-freedom industrial manipulator with computer vision techniques to achieve three key advancements: (1) automated measurement of sightline pose, (2) polarized light generation and alignment, and (3) synchronized acquisition of optical transmission system responses. The calibration robot system was validated by workspace simulation, test bench in laboratory and practical deployment for MSE calibration within the EAST vacuum vessel during the 2024 and 2025 experimental campaigns. Compared to traditional calibration methods (based on 2021 and 2023 campaign data), the proposed robotic calibration system demonstrates significantly improved performance, by reducing the average sightline pose measurement repeatability deviation from 12.1 mm to 2.0 mm.
期刊介绍:
Nuclear Engineering and Technology (NET), an international journal of the Korean Nuclear Society (KNS), publishes peer-reviewed papers on original research, ideas and developments in all areas of the field of nuclear science and technology. NET bimonthly publishes original articles, reviews, and technical notes. The journal is listed in the Science Citation Index Expanded (SCIE) of Thomson Reuters.
NET covers all fields for peaceful utilization of nuclear energy and radiation as follows:
1) Reactor Physics
2) Thermal Hydraulics
3) Nuclear Safety
4) Nuclear I&C
5) Nuclear Physics, Fusion, and Laser Technology
6) Nuclear Fuel Cycle and Radioactive Waste Management
7) Nuclear Fuel and Reactor Materials
8) Radiation Application
9) Radiation Protection
10) Nuclear Structural Analysis and Plant Management & Maintenance
11) Nuclear Policy, Economics, and Human Resource Development