Abstract
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.
| Original language | English |
|---|---|
| Title of host publication | Behavior and Mechanics of Multifunctional Materials and Composites 2016 |
| Publisher | SPIE |
| Volume | 9800 |
| ISBN (Electronic) | 9781510600416 |
| DOIs | |
| Publication status | Published - 2016 |
| Event | Behavior and Mechanics of Multifunctional Materials and Composites 2016 - Las Vegas, United States Duration: Mar 21 2016 → Mar 23 2016 |
Other
| Other | Behavior and Mechanics of Multifunctional Materials and Composites 2016 |
|---|---|
| Country | United States |
| City | Las Vegas |
| Period | 3/21/16 → 3/23/16 |
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Keywords
- Galfenol
- Peltier element (TEC)
- Precise positioning
- Thermal instability
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
- Computer Science Applications
- Applied Mathematics
- Electrical and Electronic Engineering
Cite this
Elimination of thermal instability in precise positioning of Galfenol actuators. / Ghodsi, Mojtaba; Saleem, Ashraf; Özer, Abdullah; Bahadur, Issam; Alam, Khurshid; Al-Yahmadi, Amur; Ghodsi, Mohammad Hadi; Hoshyarmanesh, Hamidreza; Sheykholeslami, Mohammad Reza.
Behavior and Mechanics of Multifunctional Materials and Composites 2016. Vol. 9800 SPIE, 2016. 980008.Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
}
TY - GEN
T1 - Elimination of thermal instability in precise positioning of Galfenol actuators
AU - Ghodsi, Mojtaba
AU - Saleem, Ashraf
AU - Özer, Abdullah
AU - Bahadur, Issam
AU - Alam, Khurshid
AU - Al-Yahmadi, Amur
AU - Ghodsi, Mohammad Hadi
AU - Hoshyarmanesh, Hamidreza
AU - Sheykholeslami, Mohammad Reza
PY - 2016
Y1 - 2016
N2 - 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.
AB - 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.
KW - Galfenol
KW - Peltier element (TEC)
KW - Precise positioning
KW - Thermal instability
UR - http://www.scopus.com/inward/record.url?scp=84983364802&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84983364802&partnerID=8YFLogxK
U2 - 10.1117/12.2222990
DO - 10.1117/12.2222990
M3 - Conference contribution
VL - 9800
BT - Behavior and Mechanics of Multifunctional Materials and Composites 2016
PB - SPIE
ER -