| 摘要 |
PURPOSE:To enable to use this unit under the environment of high temperatures, rapid temperature change, or high radiant rays, by mutually converting the electric signals between the electrode pairs and the longitudinal wave oscillation of the conductive medium orthogonal to the both directions of the magnetic pole and electrode pairs. CONSTITUTION:The case 1 is placed under the conductive medium, which can freely come in or go out in the tube 3. When the magnetic core 3 is excited by feeding a current to the exciting winding 6 from the exciting cable 8, a magnetic field is formed in the conductive medium containing part 4 between the magnetic pole pieces 5a and 5b. Further, when it is used as the audio converter, the voltage appeared between the electrodes 7a and 7b is detected. An electromotive force is caused toward orthogonal direction to the both the magnetic field and the oscillation of object, this is picked up externally with the signal cable 9 to detect audio waves. Further, in case of usage as an audio transmission wave unit, when a current flows between the electrodes 7a and 7b, the conductive substance emits audio waves toward orthogonal to the both directions of the magnetic field and the current, that is, to the direction of the tube 3. |
