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Class Information
Number: 324/529
Name: Electricity: measuring and testing > Fault detecting in electric circuits and of electric components > For fault location > By applying a test signal > Tracing test signal to fault location > Using a magnetic field sensor
Description: Subject matter where a search or exploring coil responds to a magnetic field produced by the applied test signal to determine fault location.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7403129 |
Electrical switching apparatus and method employing acoustic and current signals to distinguish between parallel and series arc faults |
Jul. 22, 2008 |
| 7362103 |
System for driving a plurality of lamps and fault detecting circuit thereof |
Apr. 22, 2008 |
| 7294996 |
Characteristic evaluating system and characteristic evaluating method |
Nov. 13, 2007 |
| 7283806 |
Wireless sensing system and method |
Oct. 16, 2007 |
| 7253636 |
Wire tracer receiver |
Aug. 7, 2007 |
| 7221283 |
Circuit interrupter locator device |
May. 22, 2007 |
| 7148696 |
Electrical switching apparatus and method including fault detection employing acoustic signature |
Dec. 12, 2006 |
| 7009405 |
Method and apparatus for testing flat display apparatus |
Mar. 7, 2006 |
| 6984989 |
Current sensor and overload current protective device therewith |
Jan. 10, 2006 |
| 6911826 |
Pulsed eddy current sensor probes and inspection methods |
Jun. 28, 2005 |
| 6828770 |
Apparatus and method for electrical measurements on conductors |
Dec. 7, 2004 |
| 6759850 |
System and method for non-contact electrical testing employing a CAM derived reference |
Jul. 6, 2004 |
| 6750644 |
Magnetic field sensor and method for calibrating the same |
Jun. 15, 2004 |
| 6720775 |
Pulsed eddy current two-dimensional sensor array inspection probe and system |
Apr. 13, 2004 |
| 6674290 |
Method and system for multi-port synchronous high voltage testing |
Jan. 6, 2004 |
| 6633169 |
Monitoring leakage currents from high-voltage devices |
Oct. 14, 2003 |
| 6614211 |
Non-contact detector for sensing a periodically varying magnetic field |
Sep. 2, 2003 |
| 6559651 |
Method for locating an open in a conductive line of an insulated conductor |
May. 6, 2003 |
| 6556018 |
Method of locating defective sockets in a light strand |
Apr. 29, 2003 |
| 6545485 |
Ultrasonic pinpointer for power system sources of interference |
Apr. 8, 2003 |
| 6515483 |
System for partial scan testing of integrated circuits |
Feb. 4, 2003 |
| 6489781 |
Method and system for detecting core faults |
Dec. 3, 2002 |
| 6476613 |
Method of fault location in parallel transmission lines with series compensation |
Nov. 5, 2002 |
| 6459284 |
Device having periodic wiring structure and test device therefor |
Oct. 1, 2002 |
| 6459272 |
Apparatus and method for inspecting wiring on board |
Oct. 1, 2002 |
| 6437577 |
Circuit to test the working of at least one antenna |
Aug. 20, 2002 |
| 6433572 |
Intergrated circuit integrity analysis as a function of magnetic field decay |
Aug. 13, 2002 |
| 6429661 |
Fault indicator for three-phase sheathed cable |
Aug. 6, 2002 |
| 6392395 |
Automatic circuit breaker detector |
May. 21, 2002 |
| 6359453 |
Vertical probe card for attachment within a central corridor of a magnetic field generator |
Mar. 19, 2002 |
| 6323653 |
Magnetic detection of short circuit defects in plate structure |
Nov. 27, 2001 |
| 6307382 |
Device and method for magnetically sensing current in plate structure |
Oct. 23, 2001 |
| 6285181 |
Method and system for determining the location of an open circuit in a semiconductor device using power modulation |
Sep. 4, 2001 |
| 6281685 |
Cable shield fault locator |
Aug. 28, 2001 |
| 6271668 |
Testing electrical installations |
Aug. 7, 2001 |
| 6252409 |
Directional short circuit detection system and method |
Jun. 26, 2001 |
| 6242925 |
EMI susceptibility testing apparatus and method |
Jun. 5, 2001 |
| 6242923 |
Method for detecting power plane-to-power plane shorts and I/O net-to power plane shorts in modules and printed circuit boards |
Jun. 5, 2001 |
| 6225810 |
Loop resistance tester (LRT) for cable shield integrity |
May. 1, 2001 |
| 6215314 |
Wire break locator and method of use |
Apr. 10, 2001 |
| 6163144 |
Electrical circuit tracing apparatus using modulated tracing signal |
Dec. 19, 2000 |
| 6118279 |
Magnetic detection of short circuit defects in plate structure |
Sep. 12, 2000 |
| 6107806 |
Device for magnetically sensing current in plate structure |
Aug. 22, 2000 |
| 6100699 |
Faulty filter detection technique |
Aug. 8, 2000 |
| 6064220 |
Semiconductor integrated circuit failure analysis using magnetic imaging |
May. 16, 2000 |
| 6054931 |
Self-identifying circuit breaker |
Apr. 25, 2000 |
| 6051977 |
Method and apparatus for locating coating faults on buried pipelines |
Apr. 18, 2000 |
| 6008657 |
Method for inspecting the elements of piping systems by electromagnetic waves |
Dec. 28, 1999 |
| 6005396 |
Method for inspecting the elements of piping systems by electromagnetic waves |
Dec. 21, 1999 |
| 5994890 |
Harmonics survey system |
Nov. 30, 1999 |
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