FR2343248A1 - Differential microcalorimeter for thermal analysis - includes temp. measuring circuit and variable resistor for adjusting measuring baseline - Google Patents

Differential microcalorimeter for thermal analysis - includes temp. measuring circuit and variable resistor for adjusting measuring baseline

Info

Publication number
FR2343248A1
FR2343248A1 FR7605855A FR7605855A FR2343248A1 FR 2343248 A1 FR2343248 A1 FR 2343248A1 FR 7605855 A FR7605855 A FR 7605855A FR 7605855 A FR7605855 A FR 7605855A FR 2343248 A1 FR2343248 A1 FR 2343248A1
Authority
FR
France
Prior art keywords
variable resistor
baseline
adjusting
measuring
thermal analysis
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
FR7605855A
Other languages
French (fr)
Other versions
FR2343248B1 (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.)
SP K BJUR
Original Assignee
SP K BJUR
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 SP K BJUR filed Critical SP K BJUR
Priority to FR7605855A priority Critical patent/FR2343248A1/en
Publication of FR2343248A1 publication Critical patent/FR2343248A1/en
Application granted granted Critical
Publication of FR2343248B1 publication Critical patent/FR2343248B1/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
    • G01N25/00—Investigating or analyzing materials by the use of thermal means
    • G01N25/20—Investigating or analyzing materials by the use of thermal means by investigating the development of heat, i.e. calorimetry, e.g. by measuring specific heat, by measuring thermal conductivity
    • G01N25/48—Investigating or analyzing materials by the use of thermal means by investigating the development of heat, i.e. calorimetry, e.g. by measuring specific heat, by measuring thermal conductivity on solution, sorption, or a chemical reaction not involving combustion or catalytic oxidation
    • G01N25/4806—Details not adapted to a particular type of sample
    • G01N25/4826—Details not adapted to a particular type of sample concerning the heating or cooling arrangements
    • G01N25/4833—Details not adapted to a particular type of sample concerning the heating or cooling arrangements specially adapted for temperature scanning
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N25/00—Investigating or analyzing materials by the use of thermal means
    • G01N25/20—Investigating or analyzing materials by the use of thermal means by investigating the development of heat, i.e. calorimetry, e.g. by measuring specific heat, by measuring thermal conductivity
    • G01N25/48—Investigating or analyzing materials by the use of thermal means by investigating the development of heat, i.e. calorimetry, e.g. by measuring specific heat, by measuring thermal conductivity on solution, sorption, or a chemical reaction not involving combustion or catalytic oxidation
    • G01N25/4846—Investigating or analyzing materials by the use of thermal means by investigating the development of heat, i.e. calorimetry, e.g. by measuring specific heat, by measuring thermal conductivity on solution, sorption, or a chemical reaction not involving combustion or catalytic oxidation for a motionless, e.g. solid sample
    • G01N25/4866—Investigating or analyzing materials by the use of thermal means by investigating the development of heat, i.e. calorimetry, e.g. by measuring specific heat, by measuring thermal conductivity on solution, sorption, or a chemical reaction not involving combustion or catalytic oxidation for a motionless, e.g. solid sample by using a differential method

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Or Analyzing Materials Using Thermal Means (AREA)

Abstract

The differential microcalorimeter comprises a system for programmed heating of cells which accommodate heating and thermosensitive elements. A device measures power output of a thermal process under study. Also provided is an a-c voltage source and a temperature measuring circuit, as well as a variable resistor for adjusting the baseline. The outputs of the device for measuring power output of a thermal process under study and of the system for programmed heating of the cells are connected, via appropriate phase-sensitive switches, to the second terminals of the series connected heating elements. Their interconnected first terminals are connected, via an appropriate phase-sensitive switch, to a movable terminal of the variable resistor for adjusting the baseline.
FR7605855A 1976-03-02 1976-03-02 Differential microcalorimeter for thermal analysis - includes temp. measuring circuit and variable resistor for adjusting measuring baseline Granted FR2343248A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7605855A FR2343248A1 (en) 1976-03-02 1976-03-02 Differential microcalorimeter for thermal analysis - includes temp. measuring circuit and variable resistor for adjusting measuring baseline

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7605855A FR2343248A1 (en) 1976-03-02 1976-03-02 Differential microcalorimeter for thermal analysis - includes temp. measuring circuit and variable resistor for adjusting measuring baseline

Publications (2)

Publication Number Publication Date
FR2343248A1 true FR2343248A1 (en) 1977-09-30
FR2343248B1 FR2343248B1 (en) 1980-06-27

Family

ID=9169833

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7605855A Granted FR2343248A1 (en) 1976-03-02 1976-03-02 Differential microcalorimeter for thermal analysis - includes temp. measuring circuit and variable resistor for adjusting measuring baseline

Country Status (1)

Country Link
FR (1) FR2343248A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2587491A1 (en) * 1985-05-10 1987-03-20 Magyar Optikai Muevek QUASITIC STATION CONTROL METHOD AND TEMPERATURE REGULATION SYSTEM

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2587491A1 (en) * 1985-05-10 1987-03-20 Magyar Optikai Muevek QUASITIC STATION CONTROL METHOD AND TEMPERATURE REGULATION SYSTEM

Also Published As

Publication number Publication date
FR2343248B1 (en) 1980-06-27

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Legal Events

Date Code Title Description
ST Notification of lapse