GB643850A - Apparatus for transmitting terms to a distance - Google Patents

Apparatus for transmitting terms to a distance

Info

Publication number
GB643850A
GB643850A GB33310/46A GB3331046A GB643850A GB 643850 A GB643850 A GB 643850A GB 33310/46 A GB33310/46 A GB 33310/46A GB 3331046 A GB3331046 A GB 3331046A GB 643850 A GB643850 A GB 643850A
Authority
GB
United Kingdom
Prior art keywords
waveforms
nov
phase difference
network
differentially
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
GB33310/46A
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.)
Electricite de France SA
Original Assignee
Electricite de France SA
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 Electricite de France SA filed Critical Electricite de France SA
Publication of GB643850A publication Critical patent/GB643850A/en
Expired legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G08SIGNALLING
    • G08CTRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
    • G08C15/00Arrangements characterised by the use of multiplexing for the transmission of a plurality of signals over a common path
    • G08C15/02Arrangements characterised by the use of multiplexing for the transmission of a plurality of signals over a common path simultaneously, i.e. using frequency division

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Transmission And Conversion Of Sensor Element Output (AREA)

Abstract

643,850. Phase difference measurements. ELECTRICITE DE FRANCE. Nov. 8, 1946, No. 33310. Convention date, Nov. 20, 1945. [Class 37] [Also in Group XXXVIII] Two waveforms whose phase difference is to be determined are applied through respective transformers T1, T2 to rectifier networks I, II. In one network the two waveforms are summed and in the other network applied differentially. The rectified outputs of the two networks appearing across load resistors R are fed differentially to the output line CD which yields a unidirectional potential directly proportional in magnitude to the phase displacement. Linearity is achieved by limiters 1, 2 which bring the two input waveforms to the same amplitude and preferably transform them to rectangular shape. Specifications 631,725 and 631,726, [Group XXXVII], are referred to.
GB33310/46A 1945-11-20 1946-11-08 Apparatus for transmitting terms to a distance Expired GB643850A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR264775X 1945-11-20

Publications (1)

Publication Number Publication Date
GB643850A true GB643850A (en) 1950-09-27

Family

ID=8885383

Family Applications (1)

Application Number Title Priority Date Filing Date
GB33310/46A Expired GB643850A (en) 1945-11-20 1946-11-08 Apparatus for transmitting terms to a distance

Country Status (5)

Country Link
BE (1) BE469000A (en)
CH (1) CH264775A (en)
FR (1) FR999156A (en)
GB (1) GB643850A (en)
NL (1) NL64106C (en)

Also Published As

Publication number Publication date
BE469000A (en)
NL64106C (en)
FR999156A (en) 1952-01-25
CH264775A (en) 1949-10-31

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