GB1330412A - Current monitoring apparatus - Google Patents

Current monitoring apparatus

Info

Publication number
GB1330412A
GB1330412A GB1330412DA GB1330412A GB 1330412 A GB1330412 A GB 1330412A GB 1330412D A GB1330412D A GB 1330412DA GB 1330412 A GB1330412 A GB 1330412A
Authority
GB
United Kingdom
Prior art keywords
zero
printed circuit
meter
component
source
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.)
Expired
Application number
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.)
BAE Systems Electronics Ltd
Original Assignee
Marconi Co 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 Marconi Co Ltd filed Critical Marconi Co Ltd
Publication of GB1330412A publication Critical patent/GB1330412A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/28—Testing of electronic circuits, e.g. by signal tracer
    • G01R31/2801—Testing of printed circuits, backplanes, motherboards, hybrid circuits or carriers for multichip packages [MCP]
    • G01R31/2805—Bare printed circuit boards

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Tests Of Electronic Circuits (AREA)

Abstract

1330412 Voltage measuring MARCONI CO LTD 12 Jan 1972 [4 March 1971] 6018/71 Heading G1U The potential between two clip-probes 2,3, which are mounted 0.2" apart particularly for contacting two neighbouring point on printed circuit track, is smoothed 4, 5, amplified 9, and indicated on a centre-zero meter 15. The amplifier is provided with variable gain by switching between feedback resistors 17, 18, 19, and a source of adjustable zero off-set bias 24. A further adjustable bias source 23 allows the meter 15 to be brought to zero when testing a first portion of a printed circuit track so that when a second portion of the same track, following the teeing off of a component for example, is tested, a relative indication is produced, indicative of the current taken by the teed-off component.
GB1330412D 1971-03-04 1972-01-12 Current monitoring apparatus Expired GB1330412A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB601871 1971-03-04

Publications (1)

Publication Number Publication Date
GB1330412A true GB1330412A (en) 1973-09-19

Family

ID=9806945

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1330412D Expired GB1330412A (en) 1971-03-04 1972-01-12 Current monitoring apparatus

Country Status (2)

Country Link
AU (1) AU3906572A (en)
GB (1) GB1330412A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4088947A (en) * 1976-06-03 1978-05-09 Rca Corporation Electrical continuity test apparatus having a forward biased diode across the test terminals
US4115731A (en) * 1976-06-01 1978-09-19 Digital Facilities, Inc. System for locating electrical shorts by tracking the paths of injected pulse currents utilizing a voltage differential responsive probe
EP0011359A1 (en) * 1978-11-15 1980-05-28 AMERICAN GAGE & MACHINE COMPANY Method and apparatus for testing electrical circuits
GB2146783A (en) * 1983-09-01 1985-04-24 Ate Systems Limited Detecting shunt loading of signal sources

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115598410B (en) * 2022-12-13 2023-03-10 成都爱旗科技有限公司 Power consumption acquisition system and method

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4115731A (en) * 1976-06-01 1978-09-19 Digital Facilities, Inc. System for locating electrical shorts by tracking the paths of injected pulse currents utilizing a voltage differential responsive probe
US4088947A (en) * 1976-06-03 1978-05-09 Rca Corporation Electrical continuity test apparatus having a forward biased diode across the test terminals
EP0011359A1 (en) * 1978-11-15 1980-05-28 AMERICAN GAGE & MACHINE COMPANY Method and apparatus for testing electrical circuits
GB2146783A (en) * 1983-09-01 1985-04-24 Ate Systems Limited Detecting shunt loading of signal sources

Also Published As

Publication number Publication date
AU3906572A (en) 1973-08-23

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee