FR2236315A1 - Circuit for splitting measuring range of pulse amplitude processing un - uses analogue digital converter with lower amplitude acceptance range feeding logic - Google Patents

Circuit for splitting measuring range of pulse amplitude processing un - uses analogue digital converter with lower amplitude acceptance range feeding logic

Info

Publication number
FR2236315A1
FR2236315A1 FR7423528A FR7423528A FR2236315A1 FR 2236315 A1 FR2236315 A1 FR 2236315A1 FR 7423528 A FR7423528 A FR 7423528A FR 7423528 A FR7423528 A FR 7423528A FR 2236315 A1 FR2236315 A1 FR 2236315A1
Authority
FR
France
Prior art keywords
range
circuit
digital converter
analogue digital
pulse amplitude
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
FR7423528A
Other languages
French (fr)
Other versions
FR2236315B3 (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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of FR2236315A1 publication Critical patent/FR2236315A1/en
Application granted granted Critical
Publication of FR2236315B3 publication Critical patent/FR2236315B3/fr
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
    • G01N15/10—Investigating individual particles
    • G01N15/1031—Investigating individual particles by measuring electrical or magnetic effects
    • G01N15/12—Investigating individual particles by measuring electrical or magnetic effects by observing changes in resistance or impedance across apertures when traversed by individual particles, e.g. by using the Coulter principle
    • G01N15/131—Details
    • G01N15/132—Circuits
    • 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
    • H03M1/34—Analogue value compared with reference values
    • H03M1/36—Analogue value compared with reference values simultaneously only, i.e. parallel type
    • H03M1/361—Analogue value compared with reference values simultaneously only, i.e. parallel type having a separate comparator and reference value for each quantisation level, i.e. full flash converter type

Landscapes

  • Chemical & Material Sciences (AREA)
  • Biochemistry (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Dispersion Chemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Analogue/Digital Conversion (AREA)
  • Measurement Of Current Or Voltage (AREA)

Abstract

The circuit is generally intended for pulse amplitude analysis using an analogue digital converter whose range is extended to cover the large pulse amplitudes in a processing unit such as for example a particle counter. The converter has a row of digital outputs, a number of parallel step modules with sub range limits coupled to the input. These determine the lower limits of the amplitude range. All the modules react to the incoming pulses indicating whether they fall within a particular range.
FR7423528A 1973-07-06 1974-07-05 Circuit for splitting measuring range of pulse amplitude processing un - uses analogue digital converter with lower amplitude acceptance range feeding logic Granted FR2236315A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US37695773A 1973-07-06 1973-07-06

Publications (2)

Publication Number Publication Date
FR2236315A1 true FR2236315A1 (en) 1975-01-31
FR2236315B3 FR2236315B3 (en) 1977-05-06

Family

ID=23487191

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7423528A Granted FR2236315A1 (en) 1973-07-06 1974-07-05 Circuit for splitting measuring range of pulse amplitude processing un - uses analogue digital converter with lower amplitude acceptance range feeding logic

Country Status (8)

Country Link
JP (1) JPS5039863A (en)
CA (1) CA994874A (en)
DE (1) DE2432373A1 (en)
FR (1) FR2236315A1 (en)
IL (1) IL45176A0 (en)
IT (1) IT1016321B (en)
NL (1) NL7409099A (en)
SE (1) SE7408907L (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2343370A1 (en) * 1976-03-03 1977-09-30 Us Commerce WIDE BAND AND HIGH DYNAMIC RANGE ANALOG / DIGITAL CONVERSION METHOD AND APPARATUS
FR2369569A1 (en) * 1976-10-27 1978-05-26 Int Standard Electric Corp Measuring instrument with digital display - has logarithmic to linear converter with automatic ranging for non linear input signals
WO1987006080A2 (en) * 1986-03-24 1987-10-08 Eastman Kodak Company Analog/digital converter apparatus for quantizing transmittance voltage signals
WO1998044634A1 (en) * 1997-04-03 1998-10-08 Advanced Micro Devices, Inc. Method and system for analog-to-digital signal conversion with simultaneous analog signal compression

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5662433A (en) * 1979-10-29 1981-05-28 Nec Corp Photoreceiver

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2343370A1 (en) * 1976-03-03 1977-09-30 Us Commerce WIDE BAND AND HIGH DYNAMIC RANGE ANALOG / DIGITAL CONVERSION METHOD AND APPARATUS
FR2369569A1 (en) * 1976-10-27 1978-05-26 Int Standard Electric Corp Measuring instrument with digital display - has logarithmic to linear converter with automatic ranging for non linear input signals
WO1987006080A2 (en) * 1986-03-24 1987-10-08 Eastman Kodak Company Analog/digital converter apparatus for quantizing transmittance voltage signals
WO1987006080A3 (en) * 1986-03-24 1988-03-24 Eastman Kodak Co Analog/digital converter apparatus for quantizing transmittance voltage signals
WO1998044634A1 (en) * 1997-04-03 1998-10-08 Advanced Micro Devices, Inc. Method and system for analog-to-digital signal conversion with simultaneous analog signal compression

Also Published As

Publication number Publication date
NL7409099A (en) 1975-01-08
SE7408907L (en) 1975-01-07
CA994874A (en) 1976-08-10
IT1016321B (en) 1977-05-30
IL45176A0 (en) 1974-10-22
DE2432373A1 (en) 1975-02-20
JPS5039863A (en) 1975-04-12
FR2236315B3 (en) 1977-05-06

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Legal Events

Date Code Title Description
ST Notification of lapse