GB831965A - Improvements in devices for measuring the relative amount of a paramagnetic gas in a gaseous mixture - Google Patents
Improvements in devices for measuring the relative amount of a paramagnetic gas in a gaseous mixtureInfo
- Publication number
- GB831965A GB831965A GB8999/57A GB899957A GB831965A GB 831965 A GB831965 A GB 831965A GB 8999/57 A GB8999/57 A GB 8999/57A GB 899957 A GB899957 A GB 899957A GB 831965 A GB831965 A GB 831965A
- Authority
- GB
- United Kingdom
- Prior art keywords
- filaments
- gas
- polepieces
- paramagnetic gas
- measuring
- 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
- 230000005298 paramagnetic effect Effects 0.000 title abstract 3
- 239000008246 gaseous mixture Substances 0.000 title 1
- 238000010438 heat treatment Methods 0.000 abstract 2
- 230000005291 magnetic effect Effects 0.000 abstract 1
- 239000000696 magnetic material Substances 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
- 230000005421 thermomagnetic effect Effects 0.000 abstract 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/02—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance
- G01N27/22—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating capacitance
- G01N27/24—Investigating the presence of flaws
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/72—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables
- G01N27/74—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables of fluids
Landscapes
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- General Health & Medical Sciences (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Biochemistry (AREA)
- Electrochemistry (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
- Other Investigation Or Analysis Of Materials By Electrical Means (AREA)
- Investigating Or Analyzing Materials Using Thermal Means (AREA)
Abstract
831,965. Electric indicating systems. OFFICE NATIONAL D'ETUDES ET DE RECHERCHES AERONAUTIQUES O.N.E.R.A. March 19, 1957, No. 8999/57. Class 40 (1). The proportion of a paramagnetic gas in a mixture is determined by using the thermomagnetic effect by which a heated paramagnetic gas moves from a region of strong to a region of weak magnetic field. In the arrangement shown the gas is introduced into a passage 4 bored in the polepieces of a magnet and led to the space between the polepieces in the central part la of which the field is uniform and in the outer part 16 non-uniform. Heating is provided by filaments a1, a2' b1, b2 mounted in non-magnetic material on the ends of the polepieces. The inner filaments are more cooled by the passage of the gas radially than the outer and the outer and inner filaments are connected in a Wheatstone bridge circuit to detect the difference. The heating filaments may be wound in the form of a spiral of which the inner part forms one arm of the bridge and the outer part another.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1023610X | 1955-02-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB831965A true GB831965A (en) | 1960-04-06 |
Family
ID=9578366
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB8999/57A Expired GB831965A (en) | 1955-02-21 | 1957-03-19 | Improvements in devices for measuring the relative amount of a paramagnetic gas in a gaseous mixture |
Country Status (4)
| Country | Link |
|---|---|
| CH (1) | CH342013A (en) |
| DE (1) | DE1023610B (en) |
| FR (1) | FR1159562A (en) |
| GB (1) | GB831965A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2158949A (en) * | 1984-05-16 | 1985-11-20 | Instrumentarium Corp | Quick response paramagnetic analyzer for measurement of the oxygen content of gases |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE621599A (en) | 1961-08-21 | |||
| DE1212747B (en) | 1962-07-05 | 1966-03-17 | Bergwerksverband Gmbh | Portable measuring device for displaying the oxygen content of a gas, especially weather mixtures in mining |
-
1955
- 1955-02-21 FR FR1159562D patent/FR1159562A/en not_active Expired
-
1956
- 1956-02-18 CH CH342013D patent/CH342013A/en unknown
- 1956-02-20 DE DEO4723A patent/DE1023610B/en active Pending
-
1957
- 1957-03-19 GB GB8999/57A patent/GB831965A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2158949A (en) * | 1984-05-16 | 1985-11-20 | Instrumentarium Corp | Quick response paramagnetic analyzer for measurement of the oxygen content of gases |
| US4633705A (en) * | 1984-05-16 | 1987-01-06 | Instrumentarium Corp. | Quick response paramagnetic analyzer for measurement of oxygen contents of gases |
Also Published As
| Publication number | Publication date |
|---|---|
| FR1159562A (en) | 1958-06-30 |
| DE1023610B (en) | 1958-01-30 |
| CH342013A (en) | 1959-10-31 |
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