DE2303331A1 - Vorrichtung zur umwandlung eines linearen signals oder eines verhaeltnisses linearer signale zueinander in ein logarithmisches signal - Google Patents

Vorrichtung zur umwandlung eines linearen signals oder eines verhaeltnisses linearer signale zueinander in ein logarithmisches signal

Info

Publication number
DE2303331A1
DE2303331A1 DE2303331A DE2303331A DE2303331A1 DE 2303331 A1 DE2303331 A1 DE 2303331A1 DE 2303331 A DE2303331 A DE 2303331A DE 2303331 A DE2303331 A DE 2303331A DE 2303331 A1 DE2303331 A1 DE 2303331A1
Authority
DE
Germany
Prior art keywords
signal
signals
generating
exponential
output
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.)
Pending
Application number
DE2303331A
Other languages
German (de)
English (en)
Inventor
Tito Suva
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.)
Micromedic Systems Inc
Original Assignee
Micromedic Systems Inc
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 Micromedic Systems Inc filed Critical Micromedic Systems Inc
Publication of DE2303331A1 publication Critical patent/DE2303331A1/de
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M1/00—Analogue/digital conversion; Digital/analogue conversion
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
    • G01N21/27—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands using photo-electric detection ; circuits for computing concentration
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06J—HYBRID COMPUTING ARRANGEMENTS
    • G06J1/00—Hybrid computing arrangements
    • 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
    • H03M1/14—Conversion in steps with each step involving the same or a different conversion means and delivering more than one bit

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Mathematical Physics (AREA)
  • General Physics & Mathematics (AREA)
  • General Health & Medical Sciences (AREA)
  • Immunology (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Pathology (AREA)
  • Computer Hardware Design (AREA)
  • Automation & Control Theory (AREA)
  • Evolutionary Computation (AREA)
  • Fuzzy Systems (AREA)
  • Software Systems (AREA)
  • Spectrometry And Color Measurement (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
DE2303331A 1972-01-19 1973-01-19 Vorrichtung zur umwandlung eines linearen signals oder eines verhaeltnisses linearer signale zueinander in ein logarithmisches signal Pending DE2303331A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US21897772A 1972-01-19 1972-01-19

Publications (1)

Publication Number Publication Date
DE2303331A1 true DE2303331A1 (de) 1973-07-26

Family

ID=22817274

Family Applications (1)

Application Number Title Priority Date Filing Date
DE2303331A Pending DE2303331A1 (de) 1972-01-19 1973-01-19 Vorrichtung zur umwandlung eines linearen signals oder eines verhaeltnisses linearer signale zueinander in ein logarithmisches signal

Country Status (5)

Country Link
JP (1) JPS4882896A (enrdf_load_html_response)
DE (1) DE2303331A1 (enrdf_load_html_response)
FR (1) FR2174553A5 (enrdf_load_html_response)
IT (1) IT977624B (enrdf_load_html_response)
NL (1) NL7300733A (enrdf_load_html_response)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2907382A1 (de) * 1978-03-07 1979-09-20 Minolta Camera Kk Vorrichtung zur optischen messung einer eigenschaft eines objektes

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5852514Y2 (ja) * 1976-05-24 1983-11-30 光明理化学工業株式会社 ガス濃度連続監視装置

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2907382A1 (de) * 1978-03-07 1979-09-20 Minolta Camera Kk Vorrichtung zur optischen messung einer eigenschaft eines objektes

Also Published As

Publication number Publication date
FR2174553A5 (enrdf_load_html_response) 1973-10-12
NL7300733A (enrdf_load_html_response) 1973-07-23
IT977624B (it) 1974-09-20
JPS4882896A (enrdf_load_html_response) 1973-11-06

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