GB1351472A - Electrical apparatus for measuring compensated temperature variations - Google Patents
Electrical apparatus for measuring compensated temperature variationsInfo
- Publication number
- GB1351472A GB1351472A GB23943/71*2A GB2394371A GB1351472A GB 1351472 A GB1351472 A GB 1351472A GB 2394371 A GB2394371 A GB 2394371A GB 1351472 A GB1351472 A GB 1351472A
- Authority
- GB
- United Kingdom
- Prior art keywords
- reaction
- heat
- resistor
- compensate
- magnitude
- 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
- 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
- G01N25/4813—Details not adapted to a particular type of sample concerning the measuring means
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
- G01K1/20—Compensating for effects of temperature changes other than those to be measured, e.g. changes in ambient temperature
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K17/00—Measuring quantity of heat
-
- 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
- G01N25/22—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 combustion or catalytic oxidation, e.g. of components of gas mixtures
- G01N25/28—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 combustion or catalytic oxidation, e.g. of components of gas mixtures the rise in temperature of the gases resulting from combustion being measured directly
- G01N25/30—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 combustion or catalytic oxidation, e.g. of components of gas mixtures the rise in temperature of the gases resulting from combustion being measured directly using electric temperature-responsive elements
- G01N25/32—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 combustion or catalytic oxidation, e.g. of components of gas mixtures the rise in temperature of the gases resulting from combustion being measured directly using electric temperature-responsive elements using thermoelectric elements
-
- 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
Abstract
1351472 Measuring temperature electrically VASIPARI KUTATO INTEZET 19 April 1971 [13 March 1970] 23943/71 Heading G1N In an arrangement in which the temperature of a process is measured by a resistor sensor 1 which is connected in a bridge circuit 12 having an indicator 2, the measurement is compensated for temperature changes brought about by other processes by (1) auxiliary circuits 3 and 4 which supply to the indicator compensating currents of adjustable polarity and magnitude and (2) further auxiliary circuit including a motor-driven resistor 5, 6 which supplies a current of adjustable polarity which varies in magnitude at a predetermined rate. The arrangement has application to a chemical process where the quantity of material involved in a reaction is determined from the heat of the reaction. Circuits 3 and 4 are used to compensate for heat produced by ancillary chemical reactions which take place with the reaction being measured. The circuit including motor-driven resistor 5, 6 is used to compensate for heat varying with time such as heating or cooling due to ambient conditions.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
HUVA1330A HU170345B (en) | 1970-03-13 | 1970-03-13 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1351472A true GB1351472A (en) | 1974-05-01 |
Family
ID=11002279
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB23943/71*2A Expired GB1351472A (en) | 1970-03-13 | 1971-04-19 | Electrical apparatus for measuring compensated temperature variations |
Country Status (5)
Country | Link |
---|---|
JP (1) | JPS463650A (en) |
DE (1) | DE2111008A1 (en) |
FR (1) | FR2084581A5 (en) |
GB (1) | GB1351472A (en) |
HU (1) | HU170345B (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL7206615A (en) * | 1972-05-17 | 1973-11-20 | ||
JPS5611552B2 (en) * | 1972-09-13 | 1981-03-14 | ||
JPS5442725U (en) * | 1977-08-30 | 1979-03-23 | ||
HU183622B (en) * | 1981-10-14 | 1984-05-28 | Energiagazdalkodasi Intezet | Method for rapid qualifying solid materials for using in production |
-
1970
- 1970-03-13 HU HUVA1330A patent/HU170345B/hu unknown
-
1971
- 1971-03-08 DE DE19712111008 patent/DE2111008A1/en active Pending
- 1971-03-12 FR FR7108785A patent/FR2084581A5/fr not_active Expired
- 1971-03-15 JP JP1403471A patent/JPS463650A/ja active Pending
- 1971-04-19 GB GB23943/71*2A patent/GB1351472A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
FR2084581A5 (en) | 1971-12-17 |
JPS463650A (en) | 1971-11-02 |
DE2111008A1 (en) | 1971-09-23 |
HU170345B (en) | 1977-05-28 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PE20 | Patent expired after termination of 20 years |