| 摘要 |
PROBLEM TO BE SOLVED: To provide an inexpensive temperature detecting apparatus notifying remote locations, even when commercial electric power is not supplied to an area at which an apparatus, an object of temperature detection, is installed and moreover, therefore eliminating the need for the complicated work of drawing transmission lines around such as optical fibers. SOLUTION: The temperature detecting apparatus is provided with: a support body 2 having one fixed end part and the other open end part and made of a shape memory alloy; a piezoelectric element 3 mounted to the support body 2 and provided with a distortion force by shape displacements of the support body 2; a biasing mechanism 4 for displacing the support body 2 into a displaced shape difference from a memorized shape; a suppression mechanism 7 for suppressing the movement of the support body 2, until the returning biasing force from the displaced shape to the memorized shape exceeds a prescribed value; and a radio transmitting device for transmitting by electric power generated by the piezoelectric element 3 which generates electric power by oscillations generated in the support body 2, when the supporting body 2 returns from the displaced shape to the memorized shape. COPYRIGHT: (C)2006,JPO&NCIPI |
