FR2478816A1 - Detecteur de fuites de gaz - Google Patents

Detecteur de fuites de gaz Download PDF

Info

Publication number: FR2478816A1
Authority: FR; France
Prior art keywords: gas; leak detector; detector according; gas leak; frequency
Prior art date: 1980-03-20
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

Application number

FR8006230A

Other languages

English (en)

French (fr)

Other versions

FR2478816B1 (2

Inventor

Tesshi Shigemori

Yoshinao Nozawa

Teruhisa Kojima

Satoshi Kitajima

Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)

New Cosmos Electric Co Ltd

Original Assignee

New Cosmos Electric Co Ltd

Priority date (The priority date 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 date listed.)

1980-03-20

Filing date

1980-03-20

Publication date

1981-09-25

1980-03-20 Application filed by New Cosmos Electric Co Ltd filed Critical New Cosmos Electric Co Ltd

1980-03-20 Priority to FR8006230A priority Critical patent/FR2478816A1/fr

1981-09-25 Publication of FR2478816A1 publication Critical patent/FR2478816A1/fr

1984-02-24 Application granted granted Critical

1984-02-24 Publication of FR2478816B1 publication Critical patent/FR2478816B1/fr

Status Granted legal-status Critical Current

Links

239000007787 solid Substances 0.000 title claims abstract description 7
229910044991 metal oxide Inorganic materials 0.000 claims abstract description 10
150000004706 metal oxides Chemical class 0.000 claims abstract description 10
238000010521 absorption reaction Methods 0.000 claims abstract description 4
239000000126 substance Substances 0.000 claims abstract description 4
239000007789 gas Substances 0.000 claims description 118
238000001514 detection method Methods 0.000 claims description 35
230000004044 response Effects 0.000 claims description 11
239000003990 capacitor Substances 0.000 claims description 7
230000008859 change Effects 0.000 claims description 7
230000000694 effects Effects 0.000 claims description 6
239000012528 membrane Substances 0.000 claims description 4
230000005236 sound signal Effects 0.000 claims description 2
239000000463 material Substances 0.000 claims 1
230000033764 rhythmic process Effects 0.000 claims 1
230000003287 optical effect Effects 0.000 abstract 1
230000035945 sensitivity Effects 0.000 description 15
238000010586 diagram Methods 0.000 description 7
238000010438 heat treatment Methods 0.000 description 5
239000007788 liquid Substances 0.000 description 4
229910052751 metal Inorganic materials 0.000 description 4
239000002184 metal Substances 0.000 description 4
BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 4
229920003051 synthetic elastomer Polymers 0.000 description 4
239000005061 synthetic rubber Substances 0.000 description 4
VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 3
230000001105 regulatory effect Effects 0.000 description 3
238000007796 conventional method Methods 0.000 description 2
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230000006641 stabilisation Effects 0.000 description 2
238000011105 stabilization Methods 0.000 description 2
XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
230000008901 benefit Effects 0.000 description 1
239000001273 butane Substances 0.000 description 1
238000011109 contamination Methods 0.000 description 1
230000001276 controlling effect Effects 0.000 description 1
230000008878 coupling Effects 0.000 description 1
238000010168 coupling process Methods 0.000 description 1
238000005859 coupling reaction Methods 0.000 description 1
230000001419 dependent effect Effects 0.000 description 1
239000012895 dilution Substances 0.000 description 1
238000010790 dilution Methods 0.000 description 1
229920001971 elastomer Polymers 0.000 description 1
XUCNUKMRBVNAPB-UHFFFAOYSA-N fluoroethene Chemical group FC=C XUCNUKMRBVNAPB-UHFFFAOYSA-N 0.000 description 1
239000011521 glass Substances 0.000 description 1
230000006872 improvement Effects 0.000 description 1
238000003780 insertion Methods 0.000 description 1
230000037431 insertion Effects 0.000 description 1
JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
230000001795 light effect Effects 0.000 description 1
238000000034 method Methods 0.000 description 1
238000012986 modification Methods 0.000 description 1
230000004048 modification Effects 0.000 description 1
IJDNQMDRQITEOD-UHFFFAOYSA-N n-butane Chemical compound CCCC IJDNQMDRQITEOD-UHFFFAOYSA-N 0.000 description 1
OFBQJSOFQDEBGM-UHFFFAOYSA-N n-pentane Natural products CCCCC OFBQJSOFQDEBGM-UHFFFAOYSA-N 0.000 description 1
239000003345 natural gas Substances 0.000 description 1
239000003208 petroleum Substances 0.000 description 1
229910052697 platinum Inorganic materials 0.000 description 1
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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
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/04—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point
- G01M3/20—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using special tracer materials, e.g. dye, fluorescent material, radioactive material

Landscapes

General Physics & Mathematics (AREA)
Physics & Mathematics (AREA)
Chemical & Material Sciences (AREA)
Immunology (AREA)
Health & Medical Sciences (AREA)
Life Sciences & Earth Sciences (AREA)
General Health & Medical Sciences (AREA)
Chemical Kinetics & Catalysis (AREA)
Electrochemistry (AREA)
Analytical Chemistry (AREA)
Pathology (AREA)
Biochemistry (AREA)
Emergency Alarm Devices (AREA)
Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)

FR8006230A 1980-03-20 1980-03-20 Detecteur de fuites de gaz Granted FR2478816A1 (fr)

Priority Applications (1)

Application Number	Priority Date	Filing Date	Title
FR8006230A FR2478816A1 (fr)	1980-03-20	1980-03-20	Detecteur de fuites de gaz

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
FR8006230A FR2478816A1 (fr)	1980-03-20	1980-03-20	Detecteur de fuites de gaz

Publications (2)

Publication Number	Publication Date
FR2478816A1 true FR2478816A1 (fr)	1981-09-25
FR2478816B1 FR2478816B1 (2)	1984-02-24

Family

ID=9239892

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
FR8006230A Granted FR2478816A1 (fr)	1980-03-20	1980-03-20	Detecteur de fuites de gaz

Country Status (1)

Country	Link
FR (1)	FR2478816A1 (2)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
CN109307730A (zh) *	2017-07-27	2019-02-05	研能科技股份有限公司	致动传感模块的驱动系统

1980
- 1980-03-20 FR FR8006230A patent/FR2478816A1/fr active Granted

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
CN109307730A (zh) *	2017-07-27	2019-02-05	研能科技股份有限公司	致动传感模块的驱动系统

Also Published As

Publication number	Publication date
FR2478816B1 (2)	1984-02-24

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