发明名称 |
METHOD OF TREATING FOIL FOR ELECTROLYTIC CAPACITORS |
摘要 |
A method of treating foil for use in electrolytic capacitors in which the foil moves in one direction through a treatment liquid and in which the capacitance is measured continuously by means of at least one current-carrying electrode from which alternating current is conveyed and at least one voltage electrode at a small distance from the foil. The foil capacitance is measured by means of a phase-sensitive voltmeter. The measured capacitance is used to control the treatment method, etching or forming. In a preferred embodiment two current-carrying electrodes are present on either side of the foil and two voltage electrodes are present between the current-carrying electrodes and the foil on either side thereof. This avoids contacting of the foil. |
申请公布号 |
DE3368341(D1) |
申请公布日期 |
1987.01.22 |
申请号 |
DE19833368341 |
申请日期 |
1983.04.12 |
申请人 |
N.V. PHILIPS' GLOEILAMPENFABRIEKEN |
发明人 |
DE WIT, HENDRIK JAN;VAN BERLO, ALBERTUS WILHELMUS MARIA;CREVECOEUR, CORNELIS |
分类号 |
C25D21/12;C25D11/04;G01R27/26;H01G9/00;H01G9/04;H01G9/055;H01G13/00 |
主分类号 |
C25D21/12 |
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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