IT991564B - Dispositivo di compensazione del la deriva in uno strumento elet tronico digitale particolarmente per misure spettrofotometriche - Google Patents

Dispositivo di compensazione del la deriva in uno strumento elet tronico digitale particolarmente per misure spettrofotometriche

Info

Publication number
IT991564B
IT991564B IT68176/73A IT6817673A IT991564B IT 991564 B IT991564 B IT 991564B IT 68176/73 A IT68176/73 A IT 68176/73A IT 6817673 A IT6817673 A IT 6817673A IT 991564 B IT991564 B IT 991564B
Authority
IT
Italy
Prior art keywords
compensation
lead
digital electronic
electronic instrument
spectrophotometric measurements
Prior art date
Application number
IT68176/73A
Other languages
English (en)
Italian (it)
Original Assignee
Nicromedic 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 Nicromedic Systems Inc filed Critical Nicromedic Systems Inc
Application granted granted Critical
Publication of IT991564B publication Critical patent/IT991564B/it

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06J—HYBRID COMPUTING ARRANGEMENTS
    • G06J1/00—Hybrid computing arrangements
    • 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
    • G01N21/274—Calibration, base line adjustment, drift correction

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Analytical Chemistry (AREA)
  • Evolutionary Computation (AREA)
  • Software Systems (AREA)
  • Automation & Control Theory (AREA)
  • Computer Hardware Design (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Fuzzy Systems (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Spectrometry And Color Measurement (AREA)
  • Investigating Or Analysing Biological Materials (AREA)
IT68176/73A 1972-04-28 1973-04-27 Dispositivo di compensazione del la deriva in uno strumento elet tronico digitale particolarmente per misure spettrofotometriche IT991564B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH641872A CH566543A5 (en, 2012) 1972-04-28 1972-04-28

Publications (1)

Publication Number Publication Date
IT991564B true IT991564B (it) 1975-08-30

Family

ID=4309285

Family Applications (1)

Application Number Title Priority Date Filing Date
IT68176/73A IT991564B (it) 1972-04-28 1973-04-27 Dispositivo di compensazione del la deriva in uno strumento elet tronico digitale particolarmente per misure spettrofotometriche

Country Status (10)

Country Link
US (1) US3922091A (en, 2012)
JP (1) JPS4942385A (en, 2012)
CH (1) CH566543A5 (en, 2012)
DE (1) DE2321735A1 (en, 2012)
ES (1) ES414131A1 (en, 2012)
FR (1) FR2182561A5 (en, 2012)
GB (1) GB1435382A (en, 2012)
IT (1) IT991564B (en, 2012)
NL (1) NL7305905A (en, 2012)
SE (1) SE387439B (en, 2012)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54164321A (en) * 1978-06-16 1979-12-27 Yoshizou Iyama False iron plate for foundation work of steel skeleton construction
US4238830A (en) * 1979-08-01 1980-12-09 The Perkin-Elmer Corporation Curvature correction
JPS5848832A (ja) * 1981-09-17 1983-03-22 Horiba Ltd 分析計の補償回路
US4692883A (en) * 1985-02-21 1987-09-08 The Perkin-Elmer Corporation Automatic digital wavelength calibration system for a spectrophotometer
US4916645A (en) * 1988-06-02 1990-04-10 The Perkin-Elmer Corporation Continuous monochrometer drift compensation of a spectral monochromator
DE4009334C2 (de) * 1990-03-23 2000-11-23 Perkin Elmer Bodenseewerk Zwei Beleuchtungsanordnung zur Beaufschlagung eines Photomultipliers bei einem Zweistrahlphotometer
US6526801B2 (en) * 2000-12-29 2003-03-04 Edwards Systems Technology, Inc. Method of compensating for drift in gas sensing equipment
US7573572B1 (en) * 2005-09-07 2009-08-11 The United States Of America As Represented By The Secretary Of The Navy Drift tube amplifier and method to amplify current
FI129721B (en) 2019-04-12 2022-07-29 Beamex Oy Ab Method and arrangement for long term drift analysis

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3522739A (en) * 1968-10-28 1970-08-04 Princeton Applied Res Corp Spectrophotometer apparatus utilizing a ratio measuring circuit
US3646331A (en) * 1970-09-03 1972-02-29 Kollmorgen Corp Automatic 100{11 line adjustment of spectrophotometers
US3724954A (en) * 1972-01-14 1973-04-03 Photo Electronics Corp Logarithmic circuit with automatic compensation for variations in conditions of operations

Also Published As

Publication number Publication date
GB1435382A (en) 1976-05-12
JPS4942385A (en, 2012) 1974-04-20
US3922091A (en) 1975-11-25
SE387439B (sv) 1976-09-06
FR2182561A5 (en, 2012) 1973-12-07
ES414131A1 (es) 1976-05-16
NL7305905A (en, 2012) 1973-10-30
DE2321735A1 (de) 1973-11-08
CH566543A5 (en, 2012) 1975-09-15

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