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Method and apparatus for circuit board continuity test, tool for continuity test, and recording medium

机译：用于电路板连续性测试的方法和设备，用于连续性测试的工具以及记录介质

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摘要

The present invention provides an apparatus and method for inspecting electrical continuity of a circuit board, capable of decreasing the impedance in a current path as an inspection object to achieve enhanced SN ratio. A coupling capacitance is formed at one of terminals of a pattern wire on a board as an inspection object in a non-contact manner, and an inductance (450) and a lead wire are connected to this capacitance. An AC inspection signal is applied to the other terminal through the lead wire in a contact manner. A resonance circuit is defined by the capacitance, inductance and pattern wire, and thereby an output signal can be detected with lowering the impedance.

机译：本发明提供一种用于检查电路板的电导通性的设备和方法，其能够减小作为检查对象的电流路径中的阻抗以实现提高的信噪比。耦合电容以非接触方式形成在作为检查对象的板上的图案线的端子之一上，并且电感（ 450 ）和引线连接至该电容。 AC检查信号通过引线以接触方式施加到另一端子。谐振电路由电容，电感和图案线定义，因此可以在降低阻抗的情况下检测输出信号。 展开▼

著录项

公开/公告号US6825673B1

专利类型

公开/公告日2004-11-30

原文格式PDF

申请/专利权人 OHT INC;
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申请/专利号US20020030104

发明设计人 SHUJI YAMAOKA;
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申请日2002-05-23

分类号H01H310/20;

国家 US

入库时间 2022-08-21 22:19:27

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