发明名称 |
METHOD AND SYSTEM FOR DETERMINING A GAP BETWEEN A VIBRATIONAL BODY AND FIXED POINT BY MONITORING THE RESONANT FREQUENCY OF THE VIBRATIONAL BODY |
摘要 |
<p>A system and method for monitoring a gap between a vibrational body and a reference is achieved by monitoring the resonant frequency of the vibrational body. A portion of the vibrational body is fixed a given distance from the reference by a rigid mounting system. A resonant frequency of the vibrational body is received. Then, a quantity standing in known relation to an approximate change in the length of the gap is determined, based upon the resonant frequency.</p> |
申请公布号 |
KR20070104903(A) |
申请公布日期 |
2007.10.29 |
申请号 |
KR20077017837 |
申请日期 |
2005.12.29 |
申请人 |
3M INNOVATIVE PROPERTIES COMPANY |
发明人 |
NAYAR SATINDER K.;OBLAK DONALD S.;FETTIG PAUL M.;POCHARDT DONALD L. |
分类号 |
B23K20/10;B29C65/08;G01H1/00;G01H13/00 |
主分类号 |
B23K20/10 |
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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