专利名称：NON-CONTACT VOLTAGE MEASUREMENT
SYSTEM
发明人：Paul Andrew Ringsrud,Clark N.
Huber,Michael F. Gallavan
申请号：US15345256申请日：20161107
公开号：US20180128858A1公开日：20180510
专利附图：
摘要：Systems and methods for measuring alternating current (AC) voltage of aninsulated conductor (e.g., insulated wire) are provided, without requiring a galvanic
connection between the conductor and a test electrode or probe. A non-galvanic contact(or “non-contact”) voltage measurement system includes a variable capacitancesubsystem which operates to generate a variable capacitive voltage between an insulatedconductor under test and earth ground. During measurement, the non-contact voltagemeasurement system varies the capacitance of the variable capacitance subsystem tochange the impedance of a capacitive divider circuit between the insulated conductorunder test and earth ground. By sequentially making two (or three) measurementsacross the variable capacitance subsystem, the AC voltage of the insulated conductor canbe determined without requiring any galvanic connection to the insulated conductor. Thedetermined AC voltage of the insulated conductor may then be presented to anoperator and/or communicated to an external device.
申请人：Fluke Corporation
地址：Everett WA US
国籍：US
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