FR2253325B1 - - Google Patents

Info

Publication number
FR2253325B1
FR2253325B1 FR7439538A FR7439538A FR2253325B1 FR 2253325 B1 FR2253325 B1 FR 2253325B1 FR 7439538 A FR7439538 A FR 7439538A FR 7439538 A FR7439538 A FR 7439538A FR 2253325 B1 FR2253325 B1 FR 2253325B1
Authority
FR
France
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
FR7439538A
Other versions
FR2253325A1 (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.)
Pye Electronic Products Ltd
Original Assignee
Pye Ltd
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 Pye Ltd filed Critical Pye Ltd
Publication of FR2253325A1 publication Critical patent/FR2253325A1/fr
Application granted granted Critical
Publication of FR2253325B1 publication Critical patent/FR2253325B1/fr
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06J—HYBRID COMPUTING ARRANGEMENTS
    • G06J1/00—Hybrid computing arrangements
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J1/00—Photometry, e.g. photographic exposure meter
    • G01J1/10—Photometry, e.g. photographic exposure meter by comparison with reference light or electric value provisionally void
    • G01J1/16—Photometry, e.g. photographic exposure meter by comparison with reference light or electric value provisionally void using electric radiation detectors
    • G01J1/18—Photometry, e.g. photographic exposure meter by comparison with reference light or electric value provisionally void using electric radiation detectors using comparison with a reference electric value
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
    • G01J3/28—Investigating the spectrum
    • G01J3/42—Absorption spectrometry; Double beam spectrometry; Flicker spectrometry; Reflection spectrometry
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
    • G01J3/28—Investigating the spectrum
    • G01J2003/2866—Markers; Calibrating of scan
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M1/00—Analogue/digital conversion; Digital/analogue conversion
    • H03M1/12—Analogue/digital converters
    • H03M1/50—Analogue/digital converters with intermediate conversion to time interval
    • H03M1/52—Input signal integrated with linear return to datum

Landscapes

  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Mathematical Physics (AREA)
  • Evolutionary Computation (AREA)
  • Fuzzy Systems (AREA)
  • Software Systems (AREA)
  • Computer Hardware Design (AREA)
  • Analogue/Digital Conversion (AREA)
  • Spectrometry And Color Measurement (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
FR7439538A 1973-12-03 1974-12-03 Expired FR2253325B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5592973A GB1427219A (en) 1973-12-03 1973-12-03 Analogue divided with digital output for spectrophotometry

Publications (2)

Publication Number Publication Date
FR2253325A1 FR2253325A1 (fr) 1975-06-27
FR2253325B1 true FR2253325B1 (fr) 1979-08-10

Family

ID=10475253

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7439538A Expired FR2253325B1 (fr) 1973-12-03 1974-12-03

Country Status (4)

Country Link
US (1) US3995265A (fr)
DE (1) DE2456954A1 (fr)
FR (1) FR2253325B1 (fr)
GB (1) GB1427219A (fr)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5230826B1 (fr) * 1969-10-30 1977-08-10
JPS5135106B1 (fr) * 1971-05-11 1976-09-30
US3772683A (en) * 1972-09-27 1973-11-13 Solartron Electronic Group Analogue to digital converters
US3826983A (en) * 1973-04-02 1974-07-30 Gen Electric Digitally scaled digital voltmeter

Also Published As

Publication number Publication date
FR2253325A1 (fr) 1975-06-27
US3995265A (en) 1976-11-30
GB1427219A (en) 1976-03-10
DE2456954A1 (de) 1975-06-05

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Legal Events

Date Code Title Description
ST Notification of lapse