发明名称 Electret transducer
摘要 A transducer with at least one variable-area capacitor comprising a flexible electrode with a surface facing a surface of a cooperating rigid electrode and an electret affixed to a portion of one of said surfaces, wherein said surface of said rigid electrode has a contoured region selected to increase a region of substantially fixed capacitance spacing as said flexible electrode deflects in response to an applied stress.
申请公布号 US6658938(B2) 申请公布日期 2003.12.09
申请号 US20020091948 申请日期 2002.03.06
申请人 MCINTOSH ROBERT B. 发明人 MCINTOSH ROBERT B.
分类号 G01D5/241;G01L9/00;G01L9/12;G01L11/00;G01P15/125;G01P15/13;G01R27/26;(IPC1-7):G01P15/125 主分类号 G01D5/241
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