发明名称 |
NONDESTRUCTIVE TESTING OF MULTILAYERS CERAMIC CAPACITORS |
摘要 |
<p>PHA. 21.226 6 A method for nondestructive testing of multilayer ceramic capacitors made from piezoelectric materials to determine the presence or absence of delaminations. The capacitor is inserted in an impedance bridge, a bias voltage of 1. to 2.5 times the rated voltage is applied and the impedance is measured as a function of frequency. A lower than expected impedance indicates a defective capacitor.</p> |
申请公布号 |
CA1237772(A) |
申请公布日期 |
1988.06.07 |
申请号 |
CA19850493492 |
申请日期 |
1985.10.22 |
申请人 |
N.V.PHILIPS'GLOEILAMPENFABRIEKEN |
发明人 |
BOSER, OTMAR H. |
分类号 |
G01N27/24;G01R27/26;G01R31/01;(IPC1-7):G01R27/26 |
主分类号 |
G01N27/24 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|