发明名称 |
Piezoelectric resonator and sensing sensor |
摘要 |
Objects of the present invention is to provide a piezoelectric resonator having high frequency stability and a sensing sensor using the piezoelectric resonator. In the present invention, a piezoelectric resonator 1 has: a first oscillation area 105 which is provided in a piezoelectric piece 100 and from which a first oscillation frequency is taken out; a second oscillation area which is provided in an area 105 different from the first oscillation area 106 via an elastic boundary area 107 and from which a second oscillation frequency is taken out; and excitation electrodes 101 to 103 provided on one surface side and another surface side of the oscillation areas 105, 106 across the piezoelectric piece 100, and a frequency difference between the first oscillation frequency and the second oscillation frequency is not less than 0.2% nor greater than 2.2% of these oscillation frequencies. |
申请公布号 |
US8298486(B2) |
申请公布日期 |
2012.10.30 |
申请号 |
US20090736805 |
申请日期 |
2009.03.02 |
申请人 |
WATANABE SHIGENORI;MUTOH TAKERU;KOYAMA MITSUAKI;NIHON DEMPA KOGYO CO., LTD. |
发明人 |
WATANABE SHIGENORI;MUTOH TAKERU;KOYAMA MITSUAKI |
分类号 |
G01N15/06;G01N33/00;G01N33/48 |
主分类号 |
G01N15/06 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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