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Title: Concealed wire tracing apparatus

An apparatus and method that combines a signal generator and a passive signal receiver to detect and record the path of partially or completely concealed electrical wiring without disturbing the concealing surface is disclosed. The signal generator applies a series of electrical pulses to the selected wiring of interest. The applied pulses create a magnetic field about the wiring that can be detected by a coil contained within the signal receiver. An audible output connected to the receiver and driven by the coil reflects the receivers position with respect to the wiring. The receivers audible signal is strongest when the receiver is directly above the wiring and the long axis of the receivers coil is parallel to the wiring. A marking means is mounted on the receiver to mark the location of the wiring as the receiver is directed over the wiring's concealing surface. Numerous marks made on various locations of the concealing surface will trace the path of the wiring of interest. 4 figs.
Authors:
Publication Date:
OSTI Identifier:
7287128
Report Number(s):
US 5317253; A
PPN: US 7-798785
DOE Contract Number:
AC09-89SR18035
Resource Type:
Patent
Resource Relation:
Patent File Date: 27 Nov 1991
Country of Publication:
United States
Language:
English
Subject:
47 OTHER INSTRUMENTATION; CONDUCTOR DEVICES; DETECTION; ELECTRIC MEASURING INSTRUMENTS; DESIGN; ELECTRIC CONDUCTORS; WIRES; ELECTRICAL EQUIPMENT; EQUIPMENT; MEASURING INSTRUMENTS 440800* -- Miscellaneous Instrumentation-- (1990-)