| 摘要 |
PROBLEM TO BE SOLVED: To provide a piezoelectric vibrating body which can restrict warping of a vibrating body resulting from the difference of thermal expansion coefficients, effectively suppress spurious vibrations generated in a vibrating part on the driving side and improve output sensitivity. SOLUTION: A vibrating part 1A on the driving side having driving vibrating branches 3, 4 and a vibrating part 1B on the detecting side having detecting vibrating branches 5, 6 and an input.output holding branch 7 are formed integrally on the confronting faces of a coupling base part 2 respectively. Driving electrodes 31, 32, 41, 42 are respectively formed at the driving vibrating branches 3, 4 of the vibrating part 1A so as to generate a predetermined vibration of the tuning fork. Moreover, detecting electrodes 51, 52, 61, 62 are formed at the detecting vibrating branches 5, 6 of the vibrating part 1B to detect the vibration. A driving input electrode 71 and detecting output electrodes 73, 74 are also formed at the holding branch 7 of the vibrating part 1B. |
