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 heatingInfo
- 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
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.
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)
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 |
-
1964
- 1964-09-07 CH CH1172564A patent/CH415116A/en unknown
- 1964-09-08 GB GB3671164A patent/GB1074874A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
CH415116A (en) | 1966-06-15 |
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