发明名称 |
Acoustic wave ice and water detector |
摘要 |
An acoustic wave sensor utilizes one or more acoustic waves trapped in an acoustic wave cavity to detect the presence of one or more substances on a surface of the acoustic wave cavity. To detect the presence of ice, a trapped torsional acoustic wave is used. To detect water, an acoustic wave with flexural or compressional components is used. The sensor includes a number of transducers adjacent the acoustic wave cavity where a controller drives different sets of the transducers to generate different acoustic waves.
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申请公布号 |
US2005016278(A1) |
申请公布日期 |
2005.01.27 |
申请号 |
US20030611457 |
申请日期 |
2003.07.01 |
申请人 |
KNOWLES TERENCE J.;KALMUS CHRIS |
发明人 |
KNOWLES TERENCE J.;KALMUS CHRIS |
分类号 |
B64D15/20;G01M7/00;G01N29/00;G01N29/02;G01N29/22;G01N29/34;G01N29/44;G01W1/00;G08B;G08B19/02;H04B1/02;H04R17/00;(IPC1-7):G01N29/02 |
主分类号 |
B64D15/20 |
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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