FR1209307A - Perfectionnements à des impédances électriques de valeur variable - Google Patents

Perfectionnements à des impédances électriques de valeur variable

Info

Publication number
FR1209307A
FR1209307A FR1209307DA FR1209307A FR 1209307 A FR1209307 A FR 1209307A FR 1209307D A FR1209307D A FR 1209307DA FR 1209307 A FR1209307 A FR 1209307A
Authority
FR
France
Prior art keywords
variable value
electrical impedances
value electrical
impedances
variable
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
Other languages
English (en)
French (fr)
Inventor
Lister Hallas
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.)
STHN UNITED TELEPHONE CABLES
Original Assignee
STHN UNITED TELEPHONE CABLES
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 STHN UNITED TELEPHONE CABLES filed Critical STHN UNITED TELEPHONE CABLES
Application granted granted Critical
Publication of FR1209307A publication Critical patent/FR1209307A/fr
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
    • H01G2/00—Details of capacitors not covered by a single one of groups H01G4/00-H01G11/00
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
    • G01R1/20—Modifications of basic electric elements for use in electric measuring instruments; Structural combinations of such elements with such instruments
    • G01R1/203—Resistors used for electric measuring, e.g. decade resistors standards, resistors for comparators, series resistors, shunts
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01C—RESISTORS
    • H01C10/00—Adjustable resistors
    • H01C10/06—Adjustable resistors adjustable by short-circuiting different amounts of the resistive element
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H5/00—One-port networks comprising only passive electrical elements as network components
    • H03H5/02—One-port networks comprising only passive electrical elements as network components without voltage- or current-dependent elements

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Relay Circuits (AREA)
  • Ac-Ac Conversion (AREA)
FR1209307D 1957-07-26 1958-07-25 Perfectionnements à des impédances électriques de valeur variable Expired FR1209307A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB23755/57A GB890945A (en) 1957-07-26 1957-07-26 Improvements in and relating to electric impedances of variable value

Publications (1)

Publication Number Publication Date
FR1209307A true FR1209307A (fr) 1960-03-01

Family

ID=10200792

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1209307D Expired FR1209307A (fr) 1957-07-26 1958-07-25 Perfectionnements à des impédances électriques de valeur variable

Country Status (8)

Country Link
US (1) US3036263A (de)
BE (1) BE569734A (de)
CH (1) CH366330A (de)
DE (1) DE1131923B (de)
DK (1) DK108458C (de)
FR (1) FR1209307A (de)
GB (1) GB890945A (de)
NL (1) NL229937A (de)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3274484A (en) * 1964-05-05 1966-09-20 Lory Power control network
FR2504273A1 (fr) * 1981-04-21 1982-10-22 Europ Composants Electron Commutateur de mesure electrique d'impedances reactives et pont de mesure utilisant un tel commutateur
US4903162A (en) * 1988-07-25 1990-02-20 Kopelman Robert L Fire-prevention electrical wiring device
US4952864A (en) * 1988-10-18 1990-08-28 Ventritex Power supply down-conversion, regulation and low battery detection system

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1350279A (en) * 1918-02-07 1920-08-17 Western Union Telegraph Co Adjustable condenser
US1422549A (en) * 1918-08-14 1922-07-11 Western Electric Co Multiple switch
US2762038A (en) * 1952-06-11 1956-09-04 Underwood Corp Voltage measuring device
US2752093A (en) * 1952-07-18 1956-06-26 Teleregister Corp Indicator device and analogue computer circuit

Also Published As

Publication number Publication date
DK108458C (da) 1967-12-18
NL229937A (de) 1900-01-01
US3036263A (en) 1962-05-22
CH366330A (de) 1962-12-31
GB890945A (en) 1962-03-07
BE569734A (de) 1900-01-01
DE1131923B (de) 1962-06-20

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