طراحی، ساخت، تست و مدل‌سازی پیچۀ هلمهولتز سه‌محوره جهت انجام تست‌های مغناطیسی ماهواره

نوع مقاله: مقالة‌ تحقیقی‌ (پژوهشی‌)

نویسندگان

- دانشکدۀ مهندسی هوافضا، قطب علمی مهندسی هوافضای محاسباتی، دانشگاه صنعتی امیرکبیر

چکیده

به منظور اطمینان‌یابی از صحت عملکرد زیرسیستم تعیین و کنترل وضعیت ماهواره و اجزای آن، لازم است تا مجموعه تست‌هایی را در سطح قطعات و زیرسیستم انجام داد. یکی از ابزارهای پرکاربرد در فرآیند انجام این تست‌ها پیچۀ هلمهولتز است که وظیفۀ آن تولید میدان مغناطیسی یکنواخت است. این وسیله در تست‌ عملکردی و کالیبراسیون حسگرها و عملگرهای مغناطیسی، تست ‌سخت‌افزار در حلقۀ زیرسیستم تعیین و کنترل وضعیت، و همچنین تست‌های مربوط به اندازه‌گیری پسماند مغناطیسی قطعات ماهواره کاربرد دارد. در این مقاله، معادلات ریاضی حاکم بر پیچۀ هلمهولتز بررسی، نحوۀ طراحی و ملاحظات آن پیشنهاد شده و مجموعه تست‌های عملکردی و همچنین تست‌های شناسایی برای بررسی طراحی و ارزیابی نمونۀ ساخته‌شده ارائه می‌شود. با یافتن مدل ریاضی این وسیله، مقدمات لازم برای طراحی سیستم کنترل حلقه‌بسته به منظور حذف اغتشاشات مغناطیسی محیطی و ایجاد میدان مغناطیسی مطلوب توسط پیچۀ هلمهولتز فراهم می‌آید.

کلیدواژه‌ها


عنوان مقاله [English]

Design, Construction, Test and Modeling of Triaxial Helmholtz Coil for Magnetic Tests of Satellite

نویسندگان [English]

  • S.M.S Mosvi
  • M. Mortazavi
Department of Aerospace Engineering, Amirkabir University of Technology
چکیده [English]

In order to be sure from true function of satellite’s Attitude determination and Control Subsystem (ADCS) and its parts, some tests are needed to be done in part or subsystem level. One of the useful tools for doing these tests is Helmholtz Coil. This tool is usable in functional tests and calibration of satellite’s magnetic sensors and actuators, in Hardware In the Loop (HIL) tests of ADCS subsystem, and also in related tests to residual magnetic of satellite’s part. In this paper, we study mathematical equations of Helmholtz coil, propose design procedure and requirements, also introduce set of functional and identification tests for evaluating the constructed Helmholtz Coil. By obtaining results and finding the mathematical model of Helmholtz Coil, preparations for designing closed loop control system to eliminate environmental magnetic disturbances and create desired magnetic field by Helmholtz coil are provided.
 

کلیدواژه‌ها [English]

  • Helmholtz coil
  • Magnetic field simulator
  • Design and construction
  • Attitude determination and control subsystem
  • Satellite’s magnetic tests
  • functional tests
  • Modeling
  • Identification
  • Magnetic field controller

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