METHOD FOR DETECTING THE ASYMMETRY OF DIAPASON-SHAPED PIEZOELECTRIC CRYSTAL RESONATORS AND RESONATORS FOR ITS IMPLEMENTATION

摘要

P THE INVENTION CONCERNS THE DIAPASON-SHAPED PIEZOELECTRIC CRYSTAL RESONATORS AND THEIR MANUFACTURE. / P P IN ADDITION TO THE EXCITATION ELECTRODES 5, 6, 7 ON THE BRANCHES 2, 3 OF THE DIAPASON, ON FORM AUXILIARY CONDUCTIVE ELECTRODES 17, 18, 19, 21 ON A PART OF THE SAME CRYSTAL FITTING THE TWO BRANCHES, AT LEAST PROVISIONALLY, WITH THE SAME AXIS OF SYMMETRY, THEN THE RESONATOR IS VIBRATED BY APPLYING AN EXCITATION VOLTAGE TO THESE ELECTRODES EXCITATION AND DURING ITS VIBRATION, THE VOLTAGE APPEARING BETWEEN THE AUXILIARY ELECTRODES IS DETECTED IN THE EVENT OF ASYMMETRIC VIBRATION OF THE BRANCHES. / P P THEY CAN THEREFORE BE ADJUSTED IN THE COURSE OF MANUFACTURING THE ASYMMETRIES POSSIBLY DETECTED BETWEEN THE TWO BRANCHES. / P