JPS6459029A - Leak inspection device - Google Patents
Leak inspection deviceInfo
- Publication number
- JPS6459029A JPS6459029A JP21527587A JP21527587A JPS6459029A JP S6459029 A JPS6459029 A JP S6459029A JP 21527587 A JP21527587 A JP 21527587A JP 21527587 A JP21527587 A JP 21527587A JP S6459029 A JPS6459029 A JP S6459029A
- Authority
- JP
- Japan
- Prior art keywords
- air
- liquid
- inspected
- pressure
- liquid chamber
- 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.)
- Pending
Links
Landscapes
- Examining Or Testing Airtightness (AREA)
Abstract
PURPOSE:To detect a defect in the sealing of a body to be inspected, by providing a liquid chamber for air leak detection and detecting an air bubble produced in liquid through electrostatic capacity. CONSTITUTION:A nozzle 33 whose tip opening 33b is arranged in the liquid in the liquid storage container 28 is connected to an air pressure source 1 through ducts 25 and 4a. The upper space 32a in the liquid chamber 32 is connected to the body 14 to be inspected through ducts 26 and 4b. Piping 3 equalizes the pressure of the air source 1 to the pressure of the body 14 to be inspected and then a valve 9 provided on the piping 3 is closed to shield the air source 1 and body 14 from each other. If air leaks from the body 14, the pressure in the upper space 32a in the liquid chamber 32 drops through the ducts 26 and 4b and air from the air source 1 is injected into the liquid chamber 32 through the nozzle 33, so an air bubble is produced in the liquid. Then the electrostatic capacity between electrodes 34 and 34 varies, so the defect in the sealing of the body 14 to be inspected is detected.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP21527587A JPS6459029A (en) | 1987-08-31 | 1987-08-31 | Leak inspection device |
KR1019880009851A KR890002651A (en) | 1987-07-31 | 1988-08-01 | Leak Detecting System |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP21527587A JPS6459029A (en) | 1987-08-31 | 1987-08-31 | Leak inspection device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6459029A true JPS6459029A (en) | 1989-03-06 |
Family
ID=16669614
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP21527587A Pending JPS6459029A (en) | 1987-07-31 | 1987-08-31 | Leak inspection device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6459029A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2007040775A (en) * | 2005-08-02 | 2007-02-15 | Mitsubishi Heavy Ind Ltd | Jig and apparatus for inspecting leak of ceramic tube |
RU2488083C1 (en) * | 2011-12-20 | 2013-07-20 | Федеральное государственное унитарное предприятие "Центральный аэрогидродинамический институт имени профессора Н.Е. Жуковского" (ФГУП "ЦАГИ") | Method to measure leakage of items |
-
1987
- 1987-08-31 JP JP21527587A patent/JPS6459029A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2007040775A (en) * | 2005-08-02 | 2007-02-15 | Mitsubishi Heavy Ind Ltd | Jig and apparatus for inspecting leak of ceramic tube |
RU2488083C1 (en) * | 2011-12-20 | 2013-07-20 | Федеральное государственное унитарное предприятие "Центральный аэрогидродинамический институт имени профессора Н.Е. Жуковского" (ФГУП "ЦАГИ") | Method to measure leakage of items |
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