GB2223320B - Capacitance measuring method and means - Google Patents

Capacitance measuring method and means

Info

Publication number
GB2223320B
GB2223320B GB8921651A GB8921651A GB2223320B GB 2223320 B GB2223320 B GB 2223320B GB 8921651 A GB8921651 A GB 8921651A GB 8921651 A GB8921651 A GB 8921651A GB 2223320 B GB2223320 B GB 2223320B
Authority
GB
United Kingdom
Prior art keywords
measuring method
capacitance measuring
capacitance
measuring
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 - Lifetime
Application number
GB8921651A
Other versions
GB2223320A (en
GB8921651D0 (en
Inventor
Alexander J Binnie
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.)
Rolls Royce Power Engineering PLC
Spirent Systems Ltd
Original Assignee
Northern Engineering Industries PLC
Edgcumbe 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 Northern Engineering Industries PLC, Edgcumbe Instruments Ltd filed Critical Northern Engineering Industries PLC
Publication of GB8921651D0 publication Critical patent/GB8921651D0/en
Publication of GB2223320A publication Critical patent/GB2223320A/en
Application granted granted Critical
Publication of GB2223320B publication Critical patent/GB2223320B/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R27/00—Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
    • G01R27/02—Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant
    • G01R27/26—Measuring inductance or capacitance; Measuring quality factor, e.g. by using the resonance method; Measuring loss factor; Measuring dielectric constants ; Measuring impedance or related variables
    • G01R27/2605—Measuring capacitance

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Resistance Or Impedance (AREA)
GB8921651A 1988-09-28 1989-09-26 Capacitance measuring method and means Expired - Lifetime GB2223320B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB888822756A GB8822756D0 (en) 1988-09-28 1988-09-28 Capacitance measuring method & means

Publications (3)

Publication Number Publication Date
GB8921651D0 GB8921651D0 (en) 1989-11-08
GB2223320A GB2223320A (en) 1990-04-04
GB2223320B true GB2223320B (en) 1992-12-02

Family

ID=10644384

Family Applications (2)

Application Number Title Priority Date Filing Date
GB888822756A Pending GB8822756D0 (en) 1988-09-28 1988-09-28 Capacitance measuring method & means
GB8921651A Expired - Lifetime GB2223320B (en) 1988-09-28 1989-09-26 Capacitance measuring method and means

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB888822756A Pending GB8822756D0 (en) 1988-09-28 1988-09-28 Capacitance measuring method & means

Country Status (1)

Country Link
GB (2) GB8822756D0 (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1020960A (en) * 1963-06-14 1966-02-23 Sheffield Corp Electronic measuring apparatus with minimized quadrature components
GB1160834A (en) * 1967-08-22 1969-08-06 Solartron Electronic Group Improvements relating to a.c. Bridges
GB1184969A (en) * 1968-09-03 1970-03-18 Solartron Electronic Group Improvements relating to A.C. Bridges

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1020960A (en) * 1963-06-14 1966-02-23 Sheffield Corp Electronic measuring apparatus with minimized quadrature components
GB1160834A (en) * 1967-08-22 1969-08-06 Solartron Electronic Group Improvements relating to a.c. Bridges
GB1184969A (en) * 1968-09-03 1970-03-18 Solartron Electronic Group Improvements relating to A.C. Bridges

Also Published As

Publication number Publication date
GB2223320A (en) 1990-04-04
GB8921651D0 (en) 1989-11-08
GB8822756D0 (en) 1988-11-02

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Legal Events

Date Code Title Description
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PE20 Patent expired after termination of 20 years

Expiry date: 20090925