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1. 发明授权

US5461274A Humidity-sensitive actuator 失效
标题翻译：湿度敏感致动器
公开(公告)号：US5461274A
公开(公告)日：1995-10-24
申请号：US209782
申请日：1994-03-11
申请人： Isogai Yuji , Hiroaki Yanagida , Masaru Miyayama
发明人： Isogai Yuji , Hiroaki Yanagida , Masaru Miyayama
IPC分类号： F24F11/02 , G01N19/10 , H01L41/09 , H02N2/00 , H01L41/08
CPC分类号： H01L41/0926 , H01L41/094
摘要： A humidity-sensitive actuator includes a plate made of piezoelectric electrostrictive ceramic having a variable electric resistance region having a high moisture absorbing capability and defining a flat electrode attachment surface, and a high, fixed electric resistance region having a low moisture absorbing capability and defining a flat electrode attachment surface. The variable electric resistance region is joined to the high, fixed electric resistance region with electrodes on the flat electrode attachment surface on opposite sides of the plate for applying an electric voltage transversely through the plate. Under a high humidity condition, when the voltage is applied transversely across the plate through the electrodes by a power supply, an electric field is applied in different proportions to the variable and high, fixed electric resistance regions, which thereby contract by smaller and larger lengths, respectively, and produce a flexural displacement of the plate to serve as a humidity-sensitive actuator.
摘要翻译：湿敏致动器包括由压电电致伸缩陶瓷制成的板，其具有具有高吸湿能力并限定平坦电极附着表面的可变电阻区域，以及具有低吸湿能力的高固定电阻区域，平面电极附着面。可变电阻区域与板的相对侧上的平坦电极附着面上的电极接合到高固定电阻区域，用于横向穿过板施加电压。在高湿度条件下，当电源通过电源横向穿过电极施加电压时，电场以不同比例施加到可变和高固定电阻区域，从而由较小和较大的长度收缩并且产生板的弯曲位移以用作湿度敏感致动器。

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