FR2255821A5 - Point-to-point electric signal visualising tracer - varies writing produced by cathode ray tube with signal timing - Google Patents

Point-to-point electric signal visualising tracer - varies writing produced by cathode ray tube with signal timing

Info

Publication number
FR2255821A5
FR2255821A5 FR7345997A FR7345997A FR2255821A5 FR 2255821 A5 FR2255821 A5 FR 2255821A5 FR 7345997 A FR7345997 A FR 7345997A FR 7345997 A FR7345997 A FR 7345997A FR 2255821 A5 FR2255821 A5 FR 2255821A5
Authority
FR
France
Prior art keywords
point
crt
visualising
ray tube
cathode ray
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
FR7345997A
Other languages
French (fr)
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.)
Sercel SAS
Original Assignee
Sercel SAS
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 Sercel SAS filed Critical Sercel SAS
Priority to FR7345997A priority Critical patent/FR2255821A5/en
Application granted granted Critical
Publication of FR2255821A5 publication Critical patent/FR2255821A5/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D15/00—Component parts of recorders for measuring arrangements not specially adapted for a specific variable
    • G01D15/14—Optical recording elements; Recording elements using X-or nuclear radiation

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Exposure Or Original Feeding In Electrophotography (AREA)
  • Facsimile Scanning Arrangements (AREA)

Abstract

The device for visualising an electrical signal comprises a cathode ray tube (CRT), a means of unwinding in a given direction a recording support (2) with a developable surface sensitive to this CRT, means of causing the recording support (2) to be scanned by the CRT perpendicular to this given direction, and a means of CRT control dependant on the amplitude of the electrical signal to be visualised. A differentiator may be used to vary the writing time according to the period of variation of the electrical signal to be visualised. An optical system may be used to project the image of the spot on the CRT onto a photographic film, scanning being achieved by CRT beam deflectors and brightness control being used to control the writing.
FR7345997A 1973-12-21 1973-12-21 Point-to-point electric signal visualising tracer - varies writing produced by cathode ray tube with signal timing Expired FR2255821A5 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7345997A FR2255821A5 (en) 1973-12-21 1973-12-21 Point-to-point electric signal visualising tracer - varies writing produced by cathode ray tube with signal timing

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7345997A FR2255821A5 (en) 1973-12-21 1973-12-21 Point-to-point electric signal visualising tracer - varies writing produced by cathode ray tube with signal timing

Publications (1)

Publication Number Publication Date
FR2255821A5 true FR2255821A5 (en) 1975-07-18

Family

ID=9129608

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7345997A Expired FR2255821A5 (en) 1973-12-21 1973-12-21 Point-to-point electric signal visualising tracer - varies writing produced by cathode ray tube with signal timing

Country Status (1)

Country Link
FR (1) FR2255821A5 (en)

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Legal Events

Date Code Title Description
RT Complete renunciation