JPS6466554A - Measurement of concentration of hydrogen in soil gas - Google Patents
Measurement of concentration of hydrogen in soil gasInfo
- Publication number
- JPS6466554A JPS6466554A JP62223397A JP22339787A JPS6466554A JP S6466554 A JPS6466554 A JP S6466554A JP 62223397 A JP62223397 A JP 62223397A JP 22339787 A JP22339787 A JP 22339787A JP S6466554 A JPS6466554 A JP S6466554A
- Authority
- JP
- Japan
- Prior art keywords
- gas
- tube
- concentration
- hydrogen
- atmospheric air
- 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.)
- Granted
Links
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 title abstract 7
- 239000001257 hydrogen Substances 0.000 title abstract 7
- 229910052739 hydrogen Inorganic materials 0.000 title abstract 7
- 239000002680 soil gas Substances 0.000 title abstract 5
- 238000005259 measurement Methods 0.000 title 1
- 239000007789 gas Substances 0.000 abstract 5
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 abstract 2
- 229910001882 dioxygen Inorganic materials 0.000 abstract 2
- 238000005070 sampling Methods 0.000 abstract 2
- 239000004065 semiconductor Substances 0.000 abstract 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract 1
- 239000001301 oxygen Substances 0.000 abstract 1
- 229910052760 oxygen Inorganic materials 0.000 abstract 1
Abstract
PURPOSE:To measure the concentration of hydrogen in a soil gas accurately, by measuring the concentration of hydrogen in a mixed gas of a soil gas and an atmospheric air with a semiconductor type gas sensor to correct the concentration of hydrogen obtained based on a mixing ratio of the soil gas and the atmospheric air. CONSTITUTION:A soil gas 2 is sampled through a sampling port 22. On the other hand, when a leak valve 32 is opened to operate a pump 46, an atmospheric air 4 is sucked into an observation tube 20 through a mixing tube 30 to mix the gas 2 and the atomospheric air 4 in the tube 20. The mixed gas 6 is sucked into the pump 46 through a suction tube 34 to be discharged underground through a discharge pipe 48. The discharged gas 6 enters the tube through a sampling port 22 together with the gas 2. Thus, the gas 2 is circulated through the tubes 20 and 34, the pump 46 and the tube 48 so that the concentration of hydrogen in the tube 20 gives a normal value. On the other hand, an oxygen gas in the gas 2 is also sampled into the tube 20, but as the oxygen gas in the atmospheric air is supplied through the tube 30, the concentration of oxygen in the tube 20 is heightened. Then, the concentration of hydrogen obtained with a semiconductor type gas sensor 8 is corrected based on a mixing ratio of the gas 2 and the atmospheric air 4 to obtain the concentration of hydrogen in the gas 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62223397A JP2538272B2 (en) | 1987-09-07 | 1987-09-07 | Method for measuring hydrogen concentration in soil gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62223397A JP2538272B2 (en) | 1987-09-07 | 1987-09-07 | Method for measuring hydrogen concentration in soil gas |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6466554A true JPS6466554A (en) | 1989-03-13 |
| JP2538272B2 JP2538272B2 (en) | 1996-09-25 |
Family
ID=16797507
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62223397A Expired - Lifetime JP2538272B2 (en) | 1987-09-07 | 1987-09-07 | Method for measuring hydrogen concentration in soil gas |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2538272B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103592675A (en) * | 2013-11-27 | 2014-02-19 | 陈国梁 | Method for monitoring and forecasting earthquakes by using change of hydrogen content in soil |
| US9797814B2 (en) | 2011-06-12 | 2017-10-24 | Adi Mottes | Probe for in situ monitoring the electrical conductivity of soil solutions |
-
1987
- 1987-09-07 JP JP62223397A patent/JP2538272B2/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9797814B2 (en) | 2011-06-12 | 2017-10-24 | Adi Mottes | Probe for in situ monitoring the electrical conductivity of soil solutions |
| CN103592675A (en) * | 2013-11-27 | 2014-02-19 | 陈国梁 | Method for monitoring and forecasting earthquakes by using change of hydrogen content in soil |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2538272B2 (en) | 1996-09-25 |
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