Elimination of thermal instability in precise positioning of Galfenol actuators

Mojtaba Ghodsi*, Ashraf Saleem, Abdullah Özer, Issam Bahadur, Khurshid Alam, Amur Al-Yahmadi, Mohammad Hadi Ghodsi, Hamidreza Hoshyarmanesh, Mohammad Reza Sheykholeslami

*المؤلف المقابل لهذا العمل

نتاج البحث

5 اقتباسات (Scopus)

ملخص

This paper presents a new method to eliminate deviation in positioning caused by coil's heat generation in magnetostrictive actuators. The advantages of the proposed system are compactness, high controllability and high reliability. The actuator package consists of Galfenol as active element and a magnification mechanism combined with a Peltier element or thermoelectric cooler (TEC). By using the temperature sensor, a thermoelectric cooler (TEC) is activated to reduce the temperature of the coil. However, the reduction of temperature by TEC alone is not enough to eliminate the error and controlling of applied voltage is also required. A simple PI controller for coil's current is combined with TEC and by reducing the temperature and current simultaneously, the positioning error is vanished completely.

اللغة الأصليةEnglish
عنوان منشور المضيفBehavior and Mechanics of Multifunctional Materials and Composites 2016
المحررونNakhiah C. Goulbourne
ناشرSPIE
رقم المعيار الدولي للكتب (الإلكتروني)9781510600416
المعرِّفات الرقمية للأشياء
حالة النشرPublished - 2016
الحدثBehavior and Mechanics of Multifunctional Materials and Composites 2016 - Las Vegas
المدة: مارس ٢١ ٢٠١٦مارس ٢٣ ٢٠١٦

سلسلة المنشورات

الاسمProceedings of SPIE - The International Society for Optical Engineering
مستوى الصوت9800
رقم المعيار الدولي للدوريات (المطبوع)0277-786X
رقم المعيار الدولي للدوريات (الإلكتروني)1996-756X

Other

OtherBehavior and Mechanics of Multifunctional Materials and Composites 2016
الدولة/الإقليمUnited States
المدينةLas Vegas
المدة٣/٢١/١٦٣/٢٣/١٦

ASJC Scopus subject areas

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بصمة

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