JPS6463878A - Shortcircuit position detecting apparatus - Google Patents

Shortcircuit position detecting apparatus

Info

Publication number
JPS6463878A
JPS6463878A JP62221551A JP22155187A JPS6463878A JP S6463878 A JPS6463878 A JP S6463878A JP 62221551 A JP62221551 A JP 62221551A JP 22155187 A JP22155187 A JP 22155187A JP S6463878 A JPS6463878 A JP S6463878A
Authority
JP
Japan
Prior art keywords
pulsating current
wiring patterns
shortcircuit
shortcircuited
magnetic field
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP62221551A
Other languages
Japanese (ja)
Inventor
Hiromi Takano
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NEC Kyushu Ltd
Original Assignee
NEC Kyushu Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by NEC Kyushu Ltd filed Critical NEC Kyushu Ltd
Priority to JP62221551A priority Critical patent/JPS6463878A/en
Publication of JPS6463878A publication Critical patent/JPS6463878A/en
Pending legal-status Critical Current

Links

Landscapes

  • Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)

Abstract

PURPOSE:To know a shortcircuit position without cutting pattern wiring, by allowing a pulsating current to flow between shortcircuited wiring patterns and detecting the change in a magnetic field generated by said current. CONSTITUTION:The shortcircuit of the wiring patterns of a printed circuit board 2 is preliminarily inspected by an inspecting device and the output of a pulsating current generator 1 is connected to the connector pins 3, 4 between the shortcircuited wiring patterns of the printed circuit board 2. A detection coil 10 for detecting the magnetic field generating from a pulsating current is provided and the output thereof is connected to a speaker 12 through an amplifier 11. The detection coil 10 is allowed to approach measuring points 8, 9 or 13, 14, 15 to detect the pulsating current and it is detected that the pulsating current flows through the measuring points 8, 9. From this, a place having a projection pattern 7 is detected easily without cutting the wiring patterns.
JP62221551A 1987-09-03 1987-09-03 Shortcircuit position detecting apparatus Pending JPS6463878A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62221551A JPS6463878A (en) 1987-09-03 1987-09-03 Shortcircuit position detecting apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62221551A JPS6463878A (en) 1987-09-03 1987-09-03 Shortcircuit position detecting apparatus

Publications (1)

Publication Number Publication Date
JPS6463878A true JPS6463878A (en) 1989-03-09

Family

ID=16768492

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62221551A Pending JPS6463878A (en) 1987-09-03 1987-09-03 Shortcircuit position detecting apparatus

Country Status (1)

Country Link
JP (1) JPS6463878A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0536659U (en) * 1991-10-17 1993-05-18 テイアツク株式会社 Head arm lock mechanism of hard disk device
WO2002056038A1 (en) * 2000-12-27 2002-07-18 Oht Inc. Method for detecting short-circuit in circuit board, detecting jig used in the method, circuit board to be inspected, apparatus for detecting short-circuit in circuit board, and coil sensor for the inspection
CN102565610A (en) * 2011-12-23 2012-07-11 西安奇维科技股份有限公司 Short circuit detector based on electromagnetic induction principle and detection method of short circuit detector

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5899768A (en) * 1981-12-09 1983-06-14 Matsushita Electric Ind Co Ltd Detecting device for short-circuiting place in substrate pattern

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5899768A (en) * 1981-12-09 1983-06-14 Matsushita Electric Ind Co Ltd Detecting device for short-circuiting place in substrate pattern

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0536659U (en) * 1991-10-17 1993-05-18 テイアツク株式会社 Head arm lock mechanism of hard disk device
WO2002056038A1 (en) * 2000-12-27 2002-07-18 Oht Inc. Method for detecting short-circuit in circuit board, detecting jig used in the method, circuit board to be inspected, apparatus for detecting short-circuit in circuit board, and coil sensor for the inspection
CN102565610A (en) * 2011-12-23 2012-07-11 西安奇维科技股份有限公司 Short circuit detector based on electromagnetic induction principle and detection method of short circuit detector

Similar Documents

Publication Publication Date Title
EP0332048A3 (en) Multiple coil eddy current probe and method of flaw detection
ATE20587T1 (en) METHOD AND DEVICE FOR DETECTING THE PRESENCE OR ABSENCE OF AN OBJECT AT THE NOZZLE ORIFICE.
ES2024994A6 (en) Diagnostic filter for detecting conductive and semiconductive particles in a fluid stream
JPS6463878A (en) Shortcircuit position detecting apparatus
CA2353043A1 (en) Method and apparatus for inspecting components
US4064452A (en) Eddy current defect simulator and method
DE69034142D1 (en) METHOD AND DEVICE FOR DETECTING AN OBJECT
DE59005875D1 (en) Device for measuring an electrical field.
SE9602564D0 (en) PCB Test
US3897684A (en) Permanent magnet type e.m. current meters
DE69016413D1 (en) Method and electronic device for measuring a gap.
JPS62187258A (en) Inspecting method for circuit board
JPS5899768A (en) Detecting device for short-circuiting place in substrate pattern
US7145319B2 (en) Electrical conductor locating device
JPS61218957A (en) Short circuited part detector
FR2447838A1 (en) APPARATUS FOR MONITORING THE EQUIPMENT OF A VEHICLE PROVIDED WITH AN ANTI-LOCKING DEVICE
ATE285078T1 (en) DEVICE AND METHOD FOR TESTING UNPUTTED PRINTED CIRCUITS
JPH0552872A (en) Effective value level detector
EP1921468A2 (en) Electrical conductor locating device
DE59209240D1 (en) Device for monitoring the functioning of inductors
JPH06300593A (en) Temperature and displacement measuring device
SU1352416A1 (en) Device for checking electrode machine windings for short-circuits
JPS57148239A (en) Detecting method for wiring pattern of printed circuit board
JPS55144557A (en) Surface potentiometer
SU867550A1 (en) Apparatus for determining article butt position