GB1074874A - Apparatus for the automatic control of the heating programme in thermobalances in the case of applying the method of gradual isothermic heating - Google Patents

Apparatus for the automatic control of the heating programme in thermobalances in the case of applying the method of gradual isothermic heating

Info

Publication number
GB1074874A
GB1074874A GB3671164A GB3671164A GB1074874A GB 1074874 A GB1074874 A GB 1074874A GB 3671164 A GB3671164 A GB 3671164A GB 3671164 A GB3671164 A GB 3671164A GB 1074874 A GB1074874 A GB 1074874A
Authority
GB
United Kingdom
Prior art keywords
heating
programme
thermobalances
gradual
applying
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
GB3671164A
Inventor
Jeno Paulik
Ferenc Paulik
Laszlo Erdey
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.)
Magyar Optikai Muevek
Original Assignee
Magyar Optikai Muevek
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 Magyar Optikai Muevek filed Critical Magyar Optikai Muevek
Publication of GB1074874A publication Critical patent/GB1074874A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N5/00—Analysing materials by weighing, e.g. weighing small particles separated from a gas or liquid
    • G01N5/04—Analysing materials by weighing, e.g. weighing small particles separated from a gas or liquid by removing a component, e.g. by evaporation, and weighing the remainder
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01G—WEIGHING
    • G01G7/00—Weighing apparatus wherein the balancing is effected by magnetic, electromagnetic, or electrostatic action, or by means not provided for in the preceding groups
    • G01G7/02—Weighing apparatus wherein the balancing is effected by magnetic, electromagnetic, or electrostatic action, or by means not provided for in the preceding groups by electromagnetic action
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D23/00—Control of temperature
    • G05D23/19—Control of temperature characterised by the use of electric means
    • G05D23/20—Control of temperature characterised by the use of electric means with sensing elements having variation of electric or magnetic properties with change of temperature
    • G05D23/22—Control of temperature characterised by the use of electric means with sensing elements having variation of electric or magnetic properties with change of temperature the sensing element being a thermocouple
    • G05D23/2236—Control of temperature characterised by the use of electric means with sensing elements having variation of electric or magnetic properties with change of temperature the sensing element being a thermocouple details of the regulator
    • G05D23/2239—Control of temperature characterised by the use of electric means with sensing elements having variation of electric or magnetic properties with change of temperature the sensing element being a thermocouple details of the regulator using photoelectric elements

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Automation & Control Theory (AREA)
  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Or Analyzing Materials Using Thermal Means (AREA)

Abstract

1,074,874. Thermogravimetrice analysis. MAGYAR OPTIKAI MœVEK. Sept. 8, 1964, No.36711/64. Heading G1N. An arrangement for automatically controlling a heating programme for thermogravimetry comprises a sample holder 1 in an oven, the heating of which is increased at a uniform rate by a programme device 16. The holder 1 is coupled to a balance 3 and a coil 11 the induced voltage in which from magnets 12 cuts off, reduces the heating current or arrests the programme through a reflecting galvanometer 13, 14 and photo-cells 15 or other amplifying means. By means of a light beam slot and lens system 5-7 and a reflecting galvanometer 9, 10 connected to a thermocouple, the changes in weight and temperature may be recorded on a light sensitive paper tape apparatus 8. Other methods of operation are described in the Specification.
GB3671164A 1964-09-07 1964-09-08 Apparatus for the automatic control of the heating programme in thermobalances in the case of applying the method of gradual isothermic heating Expired GB1074874A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1172564A CH415116A (en) 1964-09-07 1964-09-07 Device for the automatic control of the temperature of a test item examined according to the static method of thermogravimetry

Publications (1)

Publication Number Publication Date
GB1074874A true GB1074874A (en) 1967-07-05

Family

ID=4376289

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3671164A Expired GB1074874A (en) 1964-09-07 1964-09-08 Apparatus for the automatic control of the heating programme in thermobalances in the case of applying the method of gradual isothermic heating

Country Status (2)

Country Link
CH (1) CH415116A (en)
GB (1) GB1074874A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3231004A1 (en) * 1982-08-20 1984-02-23 Gronert Gmbh & Co Kg August Humidity meter with controllable drying device and continuous measurement processing

Also Published As

Publication number Publication date
CH415116A (en) 1966-06-15

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