FR898357A - Method and circuit arrangements for obtaining a direct current as a function of the derivative of the frequency with respect to time of an alternating current - Google Patents

Method and circuit arrangements for obtaining a direct current as a function of the derivative of the frequency with respect to time of an alternating current

Info

Publication number
FR898357A
FR898357A FR898357DA FR898357A FR 898357 A FR898357 A FR 898357A FR 898357D A FR898357D A FR 898357DA FR 898357 A FR898357 A FR 898357A
Authority
FR
France
Prior art keywords
derivative
obtaining
frequency
respect
function
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
French (fr)
Inventor
Andre Joseph
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.)
CIE PARISIENNE DE DISTRIB D EL
Original Assignee
CIE PARISIENNE DE DISTRIB D EL
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 CIE PARISIENNE DE DISTRIB D EL filed Critical CIE PARISIENNE DE DISTRIB D EL
Application granted granted Critical
Publication of FR898357A publication Critical patent/FR898357A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06G—ANALOGUE COMPUTERS
    • G06G7/00—Devices in which the computing operation is performed by varying electric or magnetic quantities
    • G06G7/12—Arrangements for performing computing operations, e.g. operational amplifiers
    • G06G7/18—Arrangements for performing computing operations, e.g. operational amplifiers for integration or differentiation; for forming integrals
    • G06G7/182—Arrangements for performing computing operations, e.g. operational amplifiers for integration or differentiation; for forming integrals using magnetic elements

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Mathematical Physics (AREA)
  • Theoretical Computer Science (AREA)
  • Software Systems (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
FR898357D 1943-09-29 1943-09-29 Method and circuit arrangements for obtaining a direct current as a function of the derivative of the frequency with respect to time of an alternating current Expired FR898357A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR898357T 1943-09-29

Publications (1)

Publication Number Publication Date
FR898357A true FR898357A (en) 1945-04-20

Family

ID=9391791

Family Applications (1)

Application Number Title Priority Date Filing Date
FR898357D Expired FR898357A (en) 1943-09-29 1943-09-29 Method and circuit arrangements for obtaining a direct current as a function of the derivative of the frequency with respect to time of an alternating current

Country Status (1)

Country Link
FR (1) FR898357A (en)

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