GB855615A - Improvements in or relating to electric flue-gas testers - Google Patents
Improvements in or relating to electric flue-gas testersInfo
- Publication number
- GB855615A GB855615A GB39506/58A GB3950658A GB855615A GB 855615 A GB855615 A GB 855615A GB 39506/58 A GB39506/58 A GB 39506/58A GB 3950658 A GB3950658 A GB 3950658A GB 855615 A GB855615 A GB 855615A
- Authority
- GB
- United Kingdom
- Prior art keywords
- wire
- chamber
- block
- platinum
- moulded
- 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
- G01N27/02—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance
- G01N27/04—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance
- G01N27/14—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of an electrically-heated body in dependence upon change of temperature
- G01N27/18—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of an electrically-heated body in dependence upon change of temperature caused by changes in the thermal conductivity of a surrounding material to be tested
- G01N27/185—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of an electrically-heated body in dependence upon change of temperature caused by changes in the thermal conductivity of a surrounding material to be tested using a catharometer
-
- 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
- G01N27/04—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance
- G01N27/14—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of an electrically-heated body in dependence upon change of temperature
- G01N27/16—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of an electrically-heated body in dependence upon change of temperature caused by burning or catalytic oxidation of surrounding material to be tested, e.g. of gas
Landscapes
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Electrochemistry (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
- Investigating Or Analyzing Materials By The Use Of Fluid Adsorption Or Reactions (AREA)
Abstract
855,615. Flue gas testers. LANDIS & GYR A.G. Dec. 8, 1958 [Dec. 10, 1957], No. 39506/58. Class 40 (1). A flue gas, or CO 2 tester, of the type in which the resistivity of a heated wire exposed to the flue gases is compared with that of a similar heated wire exposed to air, is adapted for use in a corrosive atmosphere by mounting the wires in compartments in a synthetic resin block. The block is preferably moulded from ethoxylene with quartz powder filler in two portions, the lower portion containing two flow chambers and the upper portion two measuring chambers. Fig. 1 shows a longitudinal section through a flow chamber 12 and measuring chamber 16 separated by an acid proof and temperatureresistant grid 17, the gases entering and leaving the chamber by holes 13 and 14 and diffusing to the measuring chamber through grid 17. Fig. 3 is a view from the underside of the upper block showing the two measuring chambers in which a platinum wire 22 is welded at each end to platinum tipped terminals 20 moulded into the block, the loop of wire being tensioned by a platinum-iridium spring 24, the spacing between the wires being maintained by glass block 27 moulded into the casing. A boss 28 is cast on to the roof of the chamber in order that, during assembly, the same length of wire may always be used by attaching one end of the wire to one terminal, passing the wire round boss 28, and then welding the other end to the second terminal, the loop then being removed from boss 28 and suspended from the tension spring 24. Specification 818,761 is referred to.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH855615X | 1957-12-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB855615A true GB855615A (en) | 1960-12-07 |
Family
ID=4542664
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB39506/58A Expired GB855615A (en) | 1957-12-10 | 1958-12-08 | Improvements in or relating to electric flue-gas testers |
Country Status (5)
| Country | Link |
|---|---|
| CH (1) | CH354963A (en) |
| DE (1) | DE1044453B (en) |
| FR (1) | FR1208742A (en) |
| GB (1) | GB855615A (en) |
| NL (1) | NL105693C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4109510A (en) * | 1977-04-14 | 1978-08-29 | Rodder Jerome A | Fluid measuring apparatus |
| GB2143949A (en) * | 1983-07-26 | 1985-02-20 | Boc Group Plc | Filament support |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| USRE30105E (en) * | 1974-11-15 | 1979-10-02 | Fluid measuring apparatus |
-
0
- NL NL105693D patent/NL105693C/xx active
-
1957
- 1957-12-10 CH CH354963D patent/CH354963A/en unknown
- 1957-12-23 DE DEL29343A patent/DE1044453B/en active Pending
-
1958
- 1958-11-19 FR FR1208742D patent/FR1208742A/en not_active Expired
- 1958-12-08 GB GB39506/58A patent/GB855615A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4109510A (en) * | 1977-04-14 | 1978-08-29 | Rodder Jerome A | Fluid measuring apparatus |
| GB2143949A (en) * | 1983-07-26 | 1985-02-20 | Boc Group Plc | Filament support |
Also Published As
| Publication number | Publication date |
|---|---|
| FR1208742A (en) | 1960-02-25 |
| CH354963A (en) | 1961-06-15 |
| DE1044453B (en) | 1958-11-20 |
| NL105693C (en) |
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