| abstract |
THE INVENTION RELATES TO AN ULTRASOUND DETECTOR. ELECTRODES 2, 3 ARE SHAPED ON THE ANTERIOR AND REAR SURFACES OF A HIGH POLYMER PIEZOELECTRIC FILM 1, SO AS PARTS CONSISTING OF ELECTRODES IN REGARDS 2A, 3A, LOCATED RESPECTIVELY ON THE ANTERIOR, POST, AND POSTER SURFACES OF THE LAYER AND PARTS OF ELECTRODES NOT AT SIGHT 2B, 3B ARE ALTERNATELY AND CONTINUOUSLY SHAPED. THE PIEZOELECTRIC FILM IS WOUND ON A BASE IN AN EVEN NUMBER OF LAYERS, SO THAT THE SIDING ELECTRODE PARTS OVERLOAD MUTUALLY AND THE NON-SIDING ELECTRODES PARTS OVERLAP MUTUALLY. |