发明名称 |
Piezoelectric measuring element for measuring mechanical variables |
摘要 |
To improve temperature compensation of a piezoelectric element measuring mechanical variables, such as pressure, force, and acceleration, with two or more piezoelectric crystal elements, at least one of the crystal elements differ from the other crystal element(s) either physically or chemically, the positive temperature coefficient of a piezo-coefficient of at least one piezoelectric crystal element compensating the negative temperature coefficient of the other crystal element(s), so that the overall piezoelectric sensitivity of the measuring element will remain essentially constant within a given temperature interval.
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申请公布号 |
US5557968(A) |
申请公布日期 |
1996.09.24 |
申请号 |
US19950393390 |
申请日期 |
1995.02.23 |
申请人 |
AVL GESELLSCHAFT F+E,UML U+EE R VERBRENNUNGSKRAFTMASCHINEN UND MESSTECHNIK M.B.H. PROF. DR.DR.H.C. HANS LIST |
发明人 |
KREMPL, PETER W.;SELIC, ROLAND |
分类号 |
G01L1/16;G01L9/08;G01L23/10;G01P1/00;(IPC1-7):H01L41/08 |
主分类号 |
G01L1/16 |
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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