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 frequencyInfo
- 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
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.
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) |
-
1973
- 1973-10-05 FR FR7335701A patent/FR2246909A1/en active Granted
-
1974
- 1974-09-19 BE BE148695A patent/BE820107A/en unknown
- 1974-10-04 DE DE19742447461 patent/DE2447461A1/en active Pending
Also Published As
Publication number | Publication date |
---|---|
DE2447461A1 (en) | 1975-04-17 |
FR2246909B1 (en) | 1976-07-23 |
BE820107A (en) | 1975-01-16 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
GB1488584A (en) | Impulse response magnetic resonance spectrometer | |
FR2246909A1 (en) | Processing of chromatography analogue data - is effected in electronic circuit converting analogue signals to frequency | |
GB1207565A (en) | Radio altimeters | |
EP0214869A3 (en) | Apparatus and method for converting voltage to digital count | |
JPS5443012A (en) | Amplitude envelope detector of signal waves | |
JPS54100652A (en) | Sampler | |
GB1369517A (en) | Television line time base arrangements | |
JPS5733365A (en) | Phase meter | |
FR2317814A1 (en) | A:D converter with comparator - compares integrated pulses with input and alters pulse frequency to reduce error signal | |
ES437103A1 (en) | Transparent time-division pulse-multiplex digital electric signal switching circuit arrangement | |
JPS5775050A (en) | Am detecting circuit | |
JPS5333564A (en) | Waveform sampling system | |
JPS52129478A (en) | Detective circuit for peakpoints of pulse signals | |
SU1840866A1 (en) | Apparatus for automatic distinction of pulsed signals | |
JPS5266363A (en) | Amplitude modulation system | |
JPS57175275A (en) | Delayed time measuring circuit | |
GB1294048A (en) | Pulse code modulation transmitter | |
JPS5631224A (en) | Fulse width modulating circuit | |
JPS56130664A (en) | Frequency measuring system | |
JPS5510214A (en) | Channel counter circuit | |
JPS51131252A (en) | Frequency discriminator circuit | |
JPS51149762A (en) | Signal amplitude extractor | |
FR2256462A1 (en) | Timing circuit for period between successive events - supplies signals representing each event to amplitude discriminator | |
JAMES | Signal conditioning(processing of output of transducers used in flight test instrument systems) | |
JPS5264263A (en) | Multi-phase clock pulse generator |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
TP | Transmission of property | ||
ST | Notification of lapse |