DE268963C - - Google Patents
Info
- Publication number
- DE268963C DE268963C DENDAT268963D DE268963DA DE268963C DE 268963 C DE268963 C DE 268963C DE NDAT268963 D DENDAT268963 D DE NDAT268963D DE 268963D A DE268963D A DE 268963DA DE 268963 C DE268963 C DE 268963C
- Authority
- DE
- Germany
- Prior art keywords
- resistance
- circuit
- switched
- gases
- lamp
- 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.)
- Active
Links
- 239000007789 gas Substances 0.000 claims description 5
- 230000003197 catalytic Effects 0.000 claims description 4
- 230000011664 signaling Effects 0.000 claims description 4
- 239000000126 substance Substances 0.000 claims description 4
- 230000003287 optical Effects 0.000 claims description 3
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 claims description 2
- 230000000694 effects Effects 0.000 claims description 2
- 229910052796 boron Inorganic materials 0.000 claims 1
- 239000002360 explosive Substances 0.000 claims 1
- 238000010792 warming Methods 0.000 claims 1
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 3
- 241000131971 Bradyrhizobiaceae Species 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000010445 mica Substances 0.000 description 1
- 229910052618 mica group Inorganic materials 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000000615 nonconductor Substances 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 230000001681 protective Effects 0.000 description 1
- 229910052904 quartz Inorganic materials 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 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
- G01N27/04—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)
- 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)
- Illuminated Signs And Luminous Advertising (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE268963C true DE268963C (ja) |
Family
ID=525872
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT268963D Active DE268963C (ja) |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE268963C (ja) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6090893A (en) * | 1994-12-16 | 2000-07-18 | Borealis Polymers Oy | Polyethylene composition |
| US6822051B2 (en) | 2002-03-29 | 2004-11-23 | Media Plus, Inc. | High density polyethylene melt blends for improved stress crack resistance in pipe |
| US7867588B2 (en) | 2001-12-17 | 2011-01-11 | Media Plus, Inc. | Polyethylene melt blends for high density polyethylene applications |
-
0
- DE DENDAT268963D patent/DE268963C/de active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6090893A (en) * | 1994-12-16 | 2000-07-18 | Borealis Polymers Oy | Polyethylene composition |
| US7867588B2 (en) | 2001-12-17 | 2011-01-11 | Media Plus, Inc. | Polyethylene melt blends for high density polyethylene applications |
| US6822051B2 (en) | 2002-03-29 | 2004-11-23 | Media Plus, Inc. | High density polyethylene melt blends for improved stress crack resistance in pipe |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Santos et al. | Recent advances of electrochemical techniques in food, energy, environment, and forensic applications | |
| DE2337596B2 (de) | Waermefuehler | |
| DE69401347T2 (de) | Sensor | |
| DE917821C (de) | Elektrischer Feuchtigkeitsmesser | |
| DE2733906C3 (de) | Verfahren und Herstellung eines Detektors zur Bestimmung der Zusammensetzung von Gasen | |
| DE2847739A1 (de) | Vorrichtung zur bestimmung der explosionsgrenzen von gasen | |
| US2531747A (en) | Metal identifier | |
| DE268963C (ja) | ||
| DE1947844A1 (de) | Verfahren und Vorrichtung zur Gasanalyse | |
| Wolff et al. | Preconcentration of cadmium, copper, lead, and zinc in water at the 10-12 g/g level by adsorption onto tungsten wire followed by flameless atomic absorption spectrometry | |
| DE1134222B (de) | Geraet zur katalytischen Gasanalyse | |
| DE2210531A1 (de) | Gerät zur Messung einer Aktivität von Cadmiumionen | |
| DE494494C (de) | Apparat zur Untersuchung von Gasgemischen | |
| DE3118936A1 (de) | Verwendung eines messverfahrens fuer gas- oder dampffoermige medien und vorrichtung hierzu | |
| DE2442593B2 (de) | Fühler zur Feststellung und/oder Messung von Alkohol und ein Herstellverfahren dazu | |
| Russell et al. | Relation of airborne nitrate to telephone equipment damage | |
| DE2942516C2 (de) | Gasspürelement zum Nachweis von Schwefelwasserstoff | |
| US3662256A (en) | Hydroxyl ion measuring system | |
| DE2316365A1 (de) | Elektrochemische messzelle zur kontinuierlichen messung des kohlenmonoxidgehaltes in luft | |
| DE2554999A1 (de) | Verfahren zum herstellen einer bindung zwischen metallen und festen elektrolytischen stoffen | |
| DE3618690A1 (de) | Strahlungsquelle fuer einen infrarot-gasanalysator | |
| DE825909C (de) | Geraet zum Nachweis von Quecksilberdampf | |
| JPS5960349A (ja) | 感ガス素子 | |
| DE3711071A1 (de) | Verfahren und vorrichtung zur messung des ozongehaltes in gas und wasser | |
| Kleperis et al. | Gaseous sensors based on solid proton conductors |