GB2159285B - Circuit monitor - Google Patents

Circuit monitor

Info

Publication number
GB2159285B
GB2159285B GB08412092A GB8412092A GB2159285B GB 2159285 B GB2159285 B GB 2159285B GB 08412092 A GB08412092 A GB 08412092A GB 8412092 A GB8412092 A GB 8412092A GB 2159285 B GB2159285 B GB 2159285B
Authority
GB
United Kingdom
Prior art keywords
circuit monitor
monitor
circuit
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
GB08412092A
Other versions
GB8412092D0 (en
GB2159285A (en
Inventor
Clive Reginald Steer
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.)
Cambridge Instruments Ltd
Original Assignee
Cambridge Instruments 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 Cambridge Instruments Ltd filed Critical Cambridge Instruments Ltd
Priority to GB08412092A priority Critical patent/GB2159285B/en
Publication of GB8412092D0 publication Critical patent/GB8412092D0/en
Priority to DE19853516251 priority patent/DE3516251A1/en
Publication of GB2159285A publication Critical patent/GB2159285A/en
Application granted granted Critical
Publication of GB2159285B publication Critical patent/GB2159285B/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/16—Indicators for switching condition, e.g. "on" or "off"
    • H01H9/167—Circuits for remote indication
    • 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
    • G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
    • 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
    • G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
    • G01R31/52—Testing for short-circuits, leakage current or ground faults
    • 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
    • G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
    • G01R31/54—Testing for continuity
GB08412092A 1984-05-11 1984-05-11 Circuit monitor Expired GB2159285B (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB08412092A GB2159285B (en) 1984-05-11 1984-05-11 Circuit monitor
DE19853516251 DE3516251A1 (en) 1984-05-11 1985-05-07 DEVICE FOR MONITORING A SWITCH OR A RESISTANCE CIRCUIT

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB08412092A GB2159285B (en) 1984-05-11 1984-05-11 Circuit monitor

Publications (3)

Publication Number Publication Date
GB8412092D0 GB8412092D0 (en) 1984-06-20
GB2159285A GB2159285A (en) 1985-11-27
GB2159285B true GB2159285B (en) 1987-10-14

Family

ID=10560819

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08412092A Expired GB2159285B (en) 1984-05-11 1984-05-11 Circuit monitor

Country Status (2)

Country Link
DE (1) DE3516251A1 (en)
GB (1) GB2159285B (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8614198D0 (en) * 1986-06-11 1986-07-16 Salplex Ltd Information handling & control systems
US5083116A (en) * 1989-12-29 1992-01-21 Judd Daniel R Contact sensing module embodying loop power supply and state sensing for relays and other contacts
FR2666901A1 (en) * 1990-09-18 1992-03-20 Electricite De France Apparatus for detecting faults in an electrical network
DE19718041A1 (en) * 1997-04-29 1998-11-12 Daimler Benz Ag Circuit arrangement and method for checking the contacting of a switch or push button
FR2807194B1 (en) * 2000-03-31 2002-05-31 Alstom ELECTRICAL CIRCUIT FOR THE TRANSMISSION OF STATE INFORMATION, IN PARTICULAR OF A ROLLING RAILWAY EQUIPMENT, AND ELECTRICAL SYSTEM INCORPORATING SUCH A CIRCUIT
FR2807193A1 (en) * 2000-03-31 2001-10-05 Alstom Electric circuit for transmission of binary state information from a rail vehicle, uses energy storage devices to deliver current indicating state of mechanical contact
FR2948812B1 (en) * 2009-07-29 2011-08-19 Leroy Automation ACTIVE HIGH VOLTAGE DRY CONTACT READ DEVICE
FR2951313B1 (en) * 2009-10-12 2012-10-19 Leroy Automation ACTIVE HIGH VOLTAGE DRY CONTACT READ DEVICE
GB2525206A (en) * 2014-04-15 2015-10-21 Bae Systems Plc Circuit state sensing
WO2015159057A1 (en) 2014-04-15 2015-10-22 Bae Systems Plc Circuit state sensing

Also Published As

Publication number Publication date
GB8412092D0 (en) 1984-06-20
DE3516251A1 (en) 1985-11-14
GB2159285A (en) 1985-11-27

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)
PCNP Patent ceased through non-payment of renewal fee