GB349204A - Improvements in and relating to methods of and apparatus for testing gas - Google Patents
Improvements in and relating to methods of and apparatus for testing gasInfo
- Publication number
- GB349204A GB349204A GB9250/30A GB925030A GB349204A GB 349204 A GB349204 A GB 349204A GB 9250/30 A GB9250/30 A GB 9250/30A GB 925030 A GB925030 A GB 925030A GB 349204 A GB349204 A GB 349204A
- Authority
- GB
- United Kingdom
- Prior art keywords
- high frequency
- supplied
- gas
- condensers
- filament
- 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
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/62—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating the ionisation of gases, e.g. aerosols; by investigating electric discharges, e.g. emission of cathode
- G01N27/68—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating the ionisation of gases, e.g. aerosols; by investigating electric discharges, e.g. emission of cathode using electric discharge to ionise a gas
- G01N27/70—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating the ionisation of gases, e.g. aerosols; by investigating electric discharges, e.g. emission of cathode using electric discharge to ionise a gas and measuring current or voltage
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (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)
- Other Investigation Or Analysis Of Materials By Electrical Means (AREA)
Abstract
<PICT:0349204/III/1> The quality of a gas which is being supplied for a manufacturing operation is determined by drawing it through a vessel which is included in a high frequency electric circuit the current in which is varied by the presence of impurities in the gas and is read on a meter which may be a recording instrument. As shown, for example in testing argon supplied to electric lamps, the gas supply is drawn through tubes 33, 34 in a container 29 which has an enveloping electrode 28 connected in the high voltage secondary circuit 17 of an oscillation generator. The anodes of vacuum tubes 18, 19 are connected in parallel to coils 14, 15 tuned by condensers 22, 23, the filament and plate supplies being obtained from power transformer secondaries 13, 12. A common grid circuit includes a leak 25, coupling coil 16, and condenser 32 which is provided for maintaining the same measuring range with different vacuum tubes. The measuring instrument 27 is connected with the centre tappings of coils 12, 13 and earth in order to keep high potentials away from its terminals. Condensers 20, 21 are provided for preventing high frequency oscillations reaching the power transformer. In a modification, the electrode 28 is earthed and high frequency currents are supplied to a filament within the container 29. Specification 310,339, [Class 37, Electricity, Measuring &c.], is referred to.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US349204XA | 1929-03-23 | 1929-03-23 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB349204A true GB349204A (en) | 1931-05-28 |
Family
ID=21879470
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB9250/30A Expired GB349204A (en) | 1929-03-23 | 1930-03-22 | Improvements in and relating to methods of and apparatus for testing gas |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB349204A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2560994A1 (en) * | 1984-03-12 | 1985-09-13 | Lacaze Pierre | Non-corrodable three-electrode sensor, with external electrodes, for gas- or liquid-phase analysis by ionisation produced by a variable electric, magnetic or electromagnetic field |
-
1930
- 1930-03-22 GB GB9250/30A patent/GB349204A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2560994A1 (en) * | 1984-03-12 | 1985-09-13 | Lacaze Pierre | Non-corrodable three-electrode sensor, with external electrodes, for gas- or liquid-phase analysis by ionisation produced by a variable electric, magnetic or electromagnetic field |
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