发明名称 |
Composite material with controlled, continuous deflection used e.g. in actuators, comprises active, heated layer bonded with inactive, thermally-conductive layer |
摘要 |
<p>An active layer (2) is connected to a source (3) generating a controllable temperature variation. It is bonded to another layer which is inactive (4) and thermally-conductive. The layers are assembled together. When heated, conduction induces temperature variation in the layers, such that the composite deforms. This occurs in a predetermined direction and to a given extent. The amplitude of deflection is proportional to the temperature variation, as a result of differential deformation between the constituent layers. The source is a heater or cooler; both may be present. The active layer is an electrical conductor and is connected to an electrical source (3) of controlled power output. Inactive layers are thermally- but not electrically-conductive. Variants and details of the composites are described. The conductor is a polymer with additives making it conductive, these are e.g. in powder- or fiber form comprising e.g. metals or carbon fibers. The actuator forms part of an automatic control system operating from programmed and measured data, the latter being especially temperature and displacement.</p> |
申请公布号 |
FR2867102(A1) |
申请公布日期 |
2005.09.09 |
申请号 |
FR20040002163 |
申请日期 |
2004.03.02 |
申请人 |
CETIM CERMAT |
发明人 |
LAURENT FABRICE |
分类号 |
B32B7/02;F03G7/06;H01B1/00;(IPC1-7):B32B7/02;B32B5/02;B32B33/00 |
主分类号 |
B32B7/02 |
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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