GB1104474A - Improvements in recording methods and apparatus - Google Patents

Improvements in recording methods and apparatus

Info

Publication number
GB1104474A
GB1104474A GB2065165A GB2065165A GB1104474A GB 1104474 A GB1104474 A GB 1104474A GB 2065165 A GB2065165 A GB 2065165A GB 2065165 A GB2065165 A GB 2065165A GB 1104474 A GB1104474 A GB 1104474A
Authority
GB
United Kingdom
Prior art keywords
record
tape
heat
intensity
record tape
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
GB2065165A
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.)
Fritz Hellige und Co GmbH
Original Assignee
Fritz Hellige und Co GmbH
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 Fritz Hellige und Co GmbH filed Critical Fritz Hellige und Co GmbH
Publication of GB1104474A publication Critical patent/GB1104474A/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)
  • Heat Sensitive Colour Forming Recording (AREA)
  • Electronic Switches (AREA)

Abstract

1,104,474. Recording-apparatus. FRITZ HELLIGE & CO. G.m.b.H. May 17, 1965 [May 19, 1964], No. 20651/65. Heading G1J. Apparatus for making an immediately visible record of a rapidly fluctuating variable uses a sharp and intense coherent infrared light beam 10a from a laser source 6 which is reflected by the mirror 5 of a galvanometer 4 to impinge on a record tape 7 having an opaque, heat-sensitive layer which becomes translucent under the action of heat and is a different colour from the underlying body of the tape. Precautions against the risk of the high-energy beam destroying the record tape include an optical system 11, 12 for adjusting the beam intensity. The adjustment may be made to depend automatically on the frequency or rate of change of amplitude of the variable and upon the selected driving speed of the record tape. The intensity of the beam may be adjusted directly at the source 6 or energy pumping device 6a.
GB2065165A 1964-05-19 1965-05-17 Improvements in recording methods and apparatus Expired GB1104474A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEH0052717 1964-05-19

Publications (1)

Publication Number Publication Date
GB1104474A true GB1104474A (en) 1968-02-28

Family

ID=7158113

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2065165A Expired GB1104474A (en) 1964-05-19 1965-05-17 Improvements in recording methods and apparatus

Country Status (3)

Country Link
FR (1) FR1433918A (en)
GB (1) GB1104474A (en)
NL (1) NL6506355A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2158045A1 (en) * 1971-10-28 1973-06-08 Seiscom Ltd

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2158045A1 (en) * 1971-10-28 1973-06-08 Seiscom Ltd

Also Published As

Publication number Publication date
NL6506355A (en) 1965-11-22
FR1433918A (en) 1966-04-01

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