GB2231672B - Interference detector - Google Patents

Interference detector

Info

Publication number
GB2231672B
GB2231672B GB8904310A GB8904310A GB2231672B GB 2231672 B GB2231672 B GB 2231672B GB 8904310 A GB8904310 A GB 8904310A GB 8904310 A GB8904310 A GB 8904310A GB 2231672 B GB2231672 B GB 2231672B
Authority
GB
United Kingdom
Prior art keywords
interference detector
interference
detector
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 - Fee Related
Application number
GB8904310A
Other versions
GB2231672A (en
GB8904310D0 (en
Inventor
Bhikhu Ardeshir Unvala
Chin Lai Lang
Francis Minoru Saba
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.)
MATELECT Ltd
NPM International
Original Assignee
MATELECT Ltd
NPM International
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 MATELECT Ltd, NPM International filed Critical MATELECT Ltd
Priority to GB8904310A priority Critical patent/GB2231672B/en
Publication of GB8904310D0 publication Critical patent/GB8904310D0/en
Publication of GB2231672A publication Critical patent/GB2231672A/en
Application granted granted Critical
Publication of GB2231672B publication Critical patent/GB2231672B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
    • G01R19/165—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values
    • G01R19/17—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values giving an indication of the number of times this occurs, i.e. multi-channel analysers

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Current Or Voltage (AREA)
GB8904310A 1989-02-24 1989-02-24 Interference detector Expired - Fee Related GB2231672B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB8904310A GB2231672B (en) 1989-02-24 1989-02-24 Interference detector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB8904310A GB2231672B (en) 1989-02-24 1989-02-24 Interference detector

Publications (3)

Publication Number Publication Date
GB8904310D0 GB8904310D0 (en) 1989-04-12
GB2231672A GB2231672A (en) 1990-11-21
GB2231672B true GB2231672B (en) 1992-07-22

Family

ID=10652291

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8904310A Expired - Fee Related GB2231672B (en) 1989-02-24 1989-02-24 Interference detector

Country Status (1)

Country Link
GB (1) GB2231672B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9121718D0 (en) * 1991-10-12 1991-11-27 Ampy Automation Digilog Improvements in and relating to electricity supplies
EP3457147A1 (en) 2017-09-13 2019-03-20 Siemens Aktiengesellschaft Device for detecting a number of transient voltage pulses

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3775675A (en) * 1972-06-15 1973-11-27 Westinghouse Electric Corp Apparatus for indicating when current exceeds a predetermined level and when said level is exceeded for a predetermined period of time
GB1422326A (en) * 1972-01-22 1976-01-28
US4129827A (en) * 1976-05-20 1978-12-12 Southwick R Amplitude probability detector
GB1584847A (en) * 1977-03-28 1981-02-18 Kraftwerk Union Ag Monitoring circuitry
GB2078979A (en) * 1980-06-23 1982-01-13 Solartron Electronic Group Methods and apparatus for assessing the quality of logic signals
US4692692A (en) * 1984-10-05 1987-09-08 Commissariat A L'energie Atomique Electronic apparatus for detecting stray variations in an electrical voltage as a function of time

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1422326A (en) * 1972-01-22 1976-01-28
US3775675A (en) * 1972-06-15 1973-11-27 Westinghouse Electric Corp Apparatus for indicating when current exceeds a predetermined level and when said level is exceeded for a predetermined period of time
US4129827A (en) * 1976-05-20 1978-12-12 Southwick R Amplitude probability detector
GB1584847A (en) * 1977-03-28 1981-02-18 Kraftwerk Union Ag Monitoring circuitry
GB2078979A (en) * 1980-06-23 1982-01-13 Solartron Electronic Group Methods and apparatus for assessing the quality of logic signals
US4692692A (en) * 1984-10-05 1987-09-08 Commissariat A L'energie Atomique Electronic apparatus for detecting stray variations in an electrical voltage as a function of time

Also Published As

Publication number Publication date
GB2231672A (en) 1990-11-21
GB8904310D0 (en) 1989-04-12

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Legal Events

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

Effective date: 20040224