GB1523735A - Arrangement for calibrating gas analyser measuring circuits - Google Patents

Arrangement for calibrating gas analyser measuring circuits

Info

Publication number
GB1523735A
GB1523735A GB41454/75A GB4145475A GB1523735A GB 1523735 A GB1523735 A GB 1523735A GB 41454/75 A GB41454/75 A GB 41454/75A GB 4145475 A GB4145475 A GB 4145475A GB 1523735 A GB1523735 A GB 1523735A
Authority
GB
United Kingdom
Prior art keywords
voltage
arrangement
analyzer
value
measuring arrangement
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.)
Expired
Application number
GB41454/75A
Other languages
English (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.)
ABB Training Center GmbH and Co KG
Original Assignee
Hartmann and Braun AG
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 Hartmann and Braun AG filed Critical Hartmann and Braun AG
Publication of GB1523735A publication Critical patent/GB1523735A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G3/00—Gain control in amplifiers or frequency changers
    • H03G3/20—Automatic control
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D18/00—Testing or calibrating apparatus or arrangements provided for in groups G01D1/00 - G01D15/00
    • G01D18/002—Automatic recalibration
    • G01D18/006—Intermittent recalibration
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D3/00—Indicating or recording apparatus with provision for the special purposes referred to in the subgroups
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/0004—Gaseous mixtures, e.g. polluted air
    • G01N33/0006—Calibrating gas analysers
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R17/00—Measuring arrangements involving comparison with a reference value, e.g. bridge
    • G01R17/02—Arrangements in which the value to be measured is automatically compared with a reference value

Landscapes

  • General Physics & Mathematics (AREA)
  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Food Science & Technology (AREA)
  • Combustion & Propulsion (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
GB41454/75A 1974-11-13 1975-10-09 Arrangement for calibrating gas analyser measuring circuits Expired GB1523735A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19742453720 DE2453720A1 (de) 1974-11-13 1974-11-13 Vorrichtung zur selbsttaetigen driftkorrektur eines messgeraetes

Publications (1)

Publication Number Publication Date
GB1523735A true GB1523735A (en) 1978-09-06

Family

ID=5930673

Family Applications (1)

Application Number Title Priority Date Filing Date
GB41454/75A Expired GB1523735A (en) 1974-11-13 1975-10-09 Arrangement for calibrating gas analyser measuring circuits

Country Status (6)

Country Link
US (1) US4032856A (enExample)
JP (1) JPS5172388A (enExample)
DE (1) DE2453720A1 (enExample)
FR (1) FR2291480A1 (enExample)
GB (1) GB1523735A (enExample)
NL (1) NL7512874A (enExample)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4151738A (en) * 1977-11-03 1979-05-01 General Electric Company Toxic gas monitor having automatic calibration
DE3115404A1 (de) * 1981-04-16 1982-11-11 Robert Bosch Gmbh, 7000 Stuttgart Verfahren und vorrichtung zur ueberwachung und kalibrierung von grenzstromsonden
US4447780A (en) * 1981-10-28 1984-05-08 The Babcock & Wilcox Company Linearizing circuit and method of calibrating same
JPS5885338U (ja) * 1981-12-07 1983-06-09 株式会社日立製作所 自動焦点装置
DE3150013A1 (de) * 1981-12-17 1983-06-23 Datron-Electronic Pichl & Schulte KG, 6109 Mühltal "verfahren und vorrichtung zur automatisierten justierung (eichung) von messgeraeten und wandlern pysikalischer eingangsgroessen"
JPH057568Y2 (enExample) * 1985-11-27 1993-02-25
US4770026A (en) * 1987-01-15 1988-09-13 Alcotek, Inc. Method of and apparatus for testing breath alcohol
JP4277599B2 (ja) * 2003-07-14 2009-06-10 ヤマハ株式会社 オフセット補正方法、オフセット補正回路及び電子ボリューム

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3441863A (en) * 1965-08-02 1969-04-29 Tektronix Inc Drift compensated direct coupled amplifier circuit having adjustable d.c. output voltage level
US3504521A (en) * 1966-10-25 1970-04-07 Centre Nat Rech Metall Method and device for the continuous analysis of the composition of a gas

Also Published As

Publication number Publication date
FR2291480A1 (fr) 1976-06-11
US4032856A (en) 1977-06-28
JPS5172388A (enExample) 1976-06-23
FR2291480B1 (enExample) 1980-08-08
DE2453720A1 (de) 1976-05-20
NL7512874A (nl) 1976-05-17

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
746 Register noted 'licences of right' (sect. 46/1977)
PCNP Patent ceased through non-payment of renewal fee