PIEZOELECTRIC VIBRATION PIECE, PIEZOELECTRIC VIBRATOR, OSCILLATOR, ELECTRONIC EQUIPMENT AND ELECTRIC WAVE CLOCK

摘要

PROBLEM TO BE SOLVED: To provide a stably supportable piezoelectric vibration piece.SOLUTION: A piezoelectric vibration piece 3 includes: a base part 20 to which a first vibration arm part 21 and a second vibration arm part 22 are connected; and a pair of terminals 16 and 17 formed in the base part 20. The base part 20 is shaped so as to be point-symmetrical with respect to the center of gravity 20C of a piezoelectric vibration piece 3. The first vibration arm part 21 and the second vibration arm part 22 are respectively shaped so as to be point-symmetrical with respect to the center of gravity 20C of the piezoelectric vibration piece 3. The pair of terminals 16 and 17 are formed at positions where they have almost equal distances from the center of gravity 20C.