Title :
Thermosensitive transformer as temperature and output power control device
Author :
Kakubari, Yasuyuki ; Sato, Fumihiro ; Matsuki, Hidetoshi ; Sato, Tadakuni
Author_Institution :
Dept. of Electr. & Commun. Eng., Tohoku Univ., Japan
Abstract :
A temperature and output power control transformer that is applied to an implanted device called artificial sphincter that is composed of shape memory alloy (SMA) is examined. The artificial sphincter is using phase transformation of SMA depending on temperature. To prevent overheating, we examined temperature control utilizing thermosensitive magnetic ferrite. As the temperature rises, the power decreases that is conveyed through the transformer that uses thermosensitive ferrite as its core. If the heater attached to SMA is provided with the electric power through the transformer, it is possible to control the temperature of SMA.
Keywords :
artificial organs; ferrites; phase transformations; power control; shape memory effects; temperature control; transformers; Curie-temperature; artificial sphincter; implanted device; output power control device; phase transformation; shape memory alloy; temperature control device; thermosensitive magnetic ferrite; thermosensitive transformer; Circuit faults; Communication system control; Ferrites; Irrigation; Magnetic cores; Phase transformers; Power generation; Temperature control; Temperature dependence; Transformer cores; Curie-temperature; temperature control; thermosensitive ferrite;
Journal_Title :
Magnetics, IEEE Transactions on
DOI :
10.1109/TMAG.2005.854988
