IT1147615B - Measuring gas-air mixture leakage from closed systems - Google Patents
Measuring gas-air mixture leakage from closed systemsInfo
- Publication number
- IT1147615B IT1147615B IT47795/82A IT4779582A IT1147615B IT 1147615 B IT1147615 B IT 1147615B IT 47795/82 A IT47795/82 A IT 47795/82A IT 4779582 A IT4779582 A IT 4779582A IT 1147615 B IT1147615 B IT 1147615B
- Authority
- IT
- Italy
- Prior art keywords
- gas
- air mixture
- leakage
- conc
- measured
- Prior art date
Links
- 239000000203 mixture Substances 0.000 title abstract 3
- 238000010521 absorption reaction Methods 0.000 abstract 1
- 230000035945 sensitivity Effects 0.000 abstract 1
- 239000000126 substance Substances 0.000 abstract 1
Landscapes
- Examining Or Testing Airtightness (AREA)
Abstract
The arrangement is used for determing the leakage of a gas-air mixture from a closed system involve modulating infrared or ultraviolet light by the gas-air absorption characteristic and measuring intensity variations. They are applicable in aircraft, vehicle, chemical, oil and gas industries etc. The instability of conventional arrangements is overcome by determining the leak detector's sensitivity using a control leak. The gas-air mixture is fed to a working chamber until its conc. reaches that in the closed system. The time to achieve this is measured. The change in pressure from the beginning of the time until equality of conc. is reached is measured. The flow, which is a measure of leakage, is derived from the product of the chamber vol. and the pressure change divided by the time interval.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT47795/82A IT1147615B (en) | 1982-02-15 | 1982-02-15 | Measuring gas-air mixture leakage from closed systems |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT47795/82A IT1147615B (en) | 1982-02-15 | 1982-02-15 | Measuring gas-air mixture leakage from closed systems |
Publications (2)
Publication Number | Publication Date |
---|---|
IT8247795A0 IT8247795A0 (en) | 1982-02-15 |
IT1147615B true IT1147615B (en) | 1986-11-19 |
Family
ID=11262552
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT47795/82A IT1147615B (en) | 1982-02-15 | 1982-02-15 | Measuring gas-air mixture leakage from closed systems |
Country Status (1)
Country | Link |
---|---|
IT (1) | IT1147615B (en) |
-
1982
- 1982-02-15 IT IT47795/82A patent/IT1147615B/en active
Also Published As
Publication number | Publication date |
---|---|
IT8247795A0 (en) | 1982-02-15 |
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