| 摘要 |
To provide a double-ended tuning fork type piezoelectric resonator that includes: a piezoelectric element having two arm portions disposed in parallel, a first supporting portion that support one ends of each of the arm portions, a second supporting portion that support the other ends of each of the arm portions; and an exciting electrode formed on a surface of each of the arm portions, and has a structure suitable for being built into a pressure sensor as a pressure sensitive element. A double-ended tuning fork type piezoelectric resonator includes: a piezoelectric element 3 having two arm portions 4 disposed in parallel and apart from each other, and a first supporting portion 5 and a second supporting portion 6 that respectively support one ends and the other ends of each of the arm portions; and an exciting electrode 7 formed on a surface of each arm portion. In the resonator, an annular linking piece 8 is provided to link the first and the second supporting portions to dispose the two arm portions in an internal space of the annular linking piece.
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