FR2246909A1 - Processing of chromatography analogue data - is effected in electronic circuit converting analogue signals to frequency - Google Patents

Processing of chromatography analogue data - is effected in electronic circuit converting analogue signals to frequency

Info

Publication number
FR2246909A1
FR2246909A1 FR7335701A FR7335701A FR2246909A1 FR 2246909 A1 FR2246909 A1 FR 2246909A1 FR 7335701 A FR7335701 A FR 7335701A FR 7335701 A FR7335701 A FR 7335701A FR 2246909 A1 FR2246909 A1 FR 2246909A1
Authority
FR
France
Prior art keywords
analogue
effected
chromatography
frequency
processing
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.)
Granted
Application number
FR7335701A
Other languages
French (fr)
Other versions
FR2246909B1 (en
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.)
Lignes Telegraphiques et Telephoniques LTT SA
Original Assignee
Lignes Telegraphiques et Telephoniques LTT 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 Lignes Telegraphiques et Telephoniques LTT SA filed Critical Lignes Telegraphiques et Telephoniques LTT SA
Priority to FR7335701A priority Critical patent/FR2246909A1/en
Priority to BE148695A priority patent/BE820107A/en
Priority to DE19742447461 priority patent/DE2447461A1/en
Publication of FR2246909A1 publication Critical patent/FR2246909A1/en
Application granted granted Critical
Publication of FR2246909B1 publication Critical patent/FR2246909B1/fr
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F7/00—Methods or arrangements for processing data by operating upon the order or content of the data handled
    • G06F7/60—Methods or arrangements for performing computations using a digital non-denominational number representation, i.e. number representation without radix; Computing devices using combinations of denominational and non-denominational quantity representations, e.g. using difunction pulse trains, STEELE computers, phase computers
    • G06F7/68—Methods or arrangements for performing computations using a digital non-denominational number representation, i.e. number representation without radix; Computing devices using combinations of denominational and non-denominational quantity representations, e.g. using difunction pulse trains, STEELE computers, phase computers using pulse rate multipliers or dividers pulse rate multipliers or dividers per se
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N30/00—Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography or field flow fractionation
    • G01N30/02—Column chromatography
    • G01N30/86—Signal analysis
    • G01N30/8603—Signal analysis with integration or differentiation
    • G01N30/8606—Integration
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N30/00—Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography or field flow fractionation
    • G01N30/02—Column chromatography
    • G01N30/86—Signal analysis
    • G01N30/8624—Detection of slopes or peaks; baseline correction
    • G01N30/8627—Slopes
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N30/00—Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography or field flow fractionation
    • G01N30/02—Column chromatography
    • G01N30/86—Signal analysis
    • G01N30/8624—Detection of slopes or peaks; baseline correction
    • G01N30/8631—Peaks
    • 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
    • H03M1/60—Analogue/digital converters with intermediate conversion to frequency of pulses

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Mathematical Analysis (AREA)
  • Mathematical Optimization (AREA)
  • Pure & Applied Mathematics (AREA)
  • Biochemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Chemical & Material Sciences (AREA)
  • Computational Mathematics (AREA)
  • Computing Systems (AREA)
  • Mathematical Physics (AREA)
  • General Engineering & Computer Science (AREA)
  • Algebra (AREA)
  • Analogue/Digital Conversion (AREA)
  • Measurement Of Current Or Voltage (AREA)

Abstract

The data is in the form of sensibly gaussian pulses of which the parameters, amplitude and average quadratic deviation vary over a very large range of values. The circuit measures the instant when the peak occurs and also the pulse are a w.r.t. a reference signal when no pulses occur. The circuit comprises a converter, transforming the analyser signals into trains of pulses whose frequency is proportional to amplitude and a scope detector (4). Drift correction of the base line is applied and an associated pulse counter circuit (622) may be inhibited by the output of one of two integrators during a short or much longer time period giving an indication of the pulse area.
FR7335701A 1973-10-05 1973-10-05 Processing of chromatography analogue data - is effected in electronic circuit converting analogue signals to frequency Granted FR2246909A1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
FR7335701A FR2246909A1 (en) 1973-10-05 1973-10-05 Processing of chromatography analogue data - is effected in electronic circuit converting analogue signals to frequency
BE148695A BE820107A (en) 1973-10-05 1974-09-19 ANALOGUE DATA PROCESSING APPARATUS ESPECIALLY FOR GAS PHASE LACHROMATOGRAPHY
DE19742447461 DE2447461A1 (en) 1973-10-05 1974-10-04 DEVICE FOR PROCESSING ANALOG DATA

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7335701A FR2246909A1 (en) 1973-10-05 1973-10-05 Processing of chromatography analogue data - is effected in electronic circuit converting analogue signals to frequency

Publications (2)

Publication Number Publication Date
FR2246909A1 true FR2246909A1 (en) 1975-05-02
FR2246909B1 FR2246909B1 (en) 1976-07-23

Family

ID=9125996

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7335701A Granted FR2246909A1 (en) 1973-10-05 1973-10-05 Processing of chromatography analogue data - is effected in electronic circuit converting analogue signals to frequency

Country Status (3)

Country Link
BE (1) BE820107A (en)
DE (1) DE2447461A1 (en)
FR (1) FR2246909A1 (en)

Also Published As

Publication number Publication date
DE2447461A1 (en) 1975-04-17
FR2246909B1 (en) 1976-07-23
BE820107A (en) 1975-01-16

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Legal Events

Date Code Title Description
TP Transmission of property
ST Notification of lapse