| 发明名称 |
Diagnostics for piezoelectric sensor |
| 摘要 |
A diagnostic device for testing a piezoelectric sensor includes an AC source configured to apply an AC signal to the piezoelectric sensor at two or more different frequencies. The response of the piezoelectric sensor can be measured and used for diagnostics.
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| 申请公布号 |
US6531884(B1) |
申请公布日期 |
2003.03.11 |
| 申请号 |
US20010940329 |
申请日期 |
2001.08.27 |
| 申请人 |
ROSEMOUNT INC. |
发明人 |
KLEVEN LOWELL A. |
| 分类号 |
G01F1/32;G01F25/00;G01R19/22;G01R29/22;(IPC1-7):G01R29/22 |
主分类号 |
G01F1/32 |
| 代理机构 |
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