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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Sato, Y. Shinohara, K. |
| Copyright Year | 1965 |
| Abstract | In the fundamental configuration of a giant magnetostrictive linear actuator (GMA), a giant magnetostrictive material (GMM) rod is energized by a coil surrounding it. However, supply of continuous electric power to the coil is necessary to maintain the expansion of the GMA. The electric power consumption is in proportion to the activation interval and becomes larger especially for applications which maintain the expansion of the GMA for long duration. This research developed a new GMA drive method which wasted no electric power during the GMA expanding. Permanent magnet (Al-Ni-Co) rods are located around the GMM rod, which are magnetized and demagnetized by the coil instantaneously. The permanent magnets supply the magnetic field to the GMM rod without electric power consumption in maintaining the expansion of the GMA. It is possible to achieve both the power-saving drive of the GMA and reduction of the thermal expansion. |
| Sponsorship | IEEE Magnetics Society |
| Starting Page | 4554 |
| Ending Page | 4557 |
| Page Count | 4 |
| File Size | 792360 |
| File Format | |
| ISSN | 00189464 |
| Volume Number | 45 |
| Issue Number | 10 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2009-10-01 |
| Publisher Place | U.S.A. |
| Access Restriction | One Nation One Subscription (ONOS) |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Permanent magnets Coils Magnetic fields Magnetostriction Hydraulic actuators Magnetic materials Demagnetization Thermal expansion Magnetization Mechanical engineering 2-position control Actuator magnetostrictive device linear actuator power-saving drive |
| Content Type | Text |
| Resource Type | Article |
| Subject | Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering |
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