发明名称 |
SWITCHING APPARATUS AND TEST APPARATUS |
摘要 |
Provided is a switching apparatus comprising a contact point section that includes a first contact point; an actuator that includes a second contact point and moves the second contact point to contact or move away from the first contact point; and a control section that controls a first drive voltage. The actuator includes a first piezoelectric film that expands and contracts according to the first drive voltage and a support layer disposed on the first piezoelectric film. The control section causes the first piezoelectric film to contract by causing a change from a voltage that applies an electric field that is less than a first coercive electric field to a voltage that applies an electric field that exceeds the first coercive electric field, and causes the first piezoelectric film to expand by outputting a voltage that applies an electric field that is less than a second coercive electric field.
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申请公布号 |
US2013038335(A1) |
申请公布日期 |
2013.02.14 |
申请号 |
US201113277234 |
申请日期 |
2011.10.20 |
申请人 |
ADVANTEST CORPORATION;HORI HISAO;ABE YOSHIKAZU;SATO YOSHIHIRO |
发明人 |
HORI HISAO;ABE YOSHIKAZU;SATO YOSHIHIRO |
分类号 |
H01H57/00;G01R31/02 |
主分类号 |
H01H57/00 |
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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