JPS56100336A - Pinhole inspection device of reduced pressure type for sealing packing - Google Patents

Pinhole inspection device of reduced pressure type for sealing packing

Info

Publication number
JPS56100336A
JPS56100336A JP404780A JP404780A JPS56100336A JP S56100336 A JPS56100336 A JP S56100336A JP 404780 A JP404780 A JP 404780A JP 404780 A JP404780 A JP 404780A JP S56100336 A JPS56100336 A JP S56100336A
Authority
JP
Japan
Prior art keywords
pressure
vessel
reduced
sealing packing
reduced pressure
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
Application number
JP404780A
Other languages
Japanese (ja)
Inventor
Akiichi Matsumoto
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.)
National Institute of Advanced Industrial Science and Technology AIST
Original Assignee
Agency of Industrial Science and Technology
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.)
Filing date
Publication date
Application filed by Agency of Industrial Science and Technology filed Critical Agency of Industrial Science and Technology
Priority to JP404780A priority Critical patent/JPS56100336A/en
Publication of JPS56100336A publication Critical patent/JPS56100336A/en
Pending legal-status Critical Current

Links

Classifications

    • 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
    • G01M3/26—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
    • G01M3/32—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for containers, e.g. radiators
    • G01M3/3281—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for containers, e.g. radiators removably mounted in a test cell
    • G01M3/329—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for containers, e.g. radiators removably mounted in a test cell for verifying the internal pressure of closed containers

Abstract

PURPOSE:To make an inspection of pinholes for a sealing packing vessel without accompanying with destruction, by containing the sealing packing vessel to be inspected in a pressure reduced vessel, and detecting movement of pressure responding member in displacement according to the pressure variance in the pressure reduced vessel by means of a differential transformer. CONSTITUTION:A sealing packing vessel 1 is contained in a reduced pressure vessel 2, and the pressure in the pressure reduced vessel 2 is reduced to an arbitrary pressure, e.g., a pressure slightly lower than the atmospheric pressure. With this state, the displacement due to pressure reduction of a pressure responsing member 13 at a pressure guage 12 is detected with a differential transformer 14, the output is amplified with an amplifier 15 and displayed or recorded as a pressure on a display recording meter 16. If pin holes are present to the vessel 1, since the pressure gauge 12 detects a small variance of the pressure caused in the vessel 2, the presence of pin holes is detected easily.
JP404780A 1980-01-16 1980-01-16 Pinhole inspection device of reduced pressure type for sealing packing Pending JPS56100336A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP404780A JPS56100336A (en) 1980-01-16 1980-01-16 Pinhole inspection device of reduced pressure type for sealing packing

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP404780A JPS56100336A (en) 1980-01-16 1980-01-16 Pinhole inspection device of reduced pressure type for sealing packing

Publications (1)

Publication Number Publication Date
JPS56100336A true JPS56100336A (en) 1981-08-12

Family

ID=11573994

Family Applications (1)

Application Number Title Priority Date Filing Date
JP404780A Pending JPS56100336A (en) 1980-01-16 1980-01-16 Pinhole inspection device of reduced pressure type for sealing packing

Country Status (1)

Country Link
JP (1) JPS56100336A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5873836A (en) * 1981-10-28 1983-05-04 Toppan Printing Co Ltd Inspection of pin hole for container
JPH01203931A (en) * 1988-02-09 1989-08-16 Toyama Kensa Kk Small-sized leak testing instrument for tank, pipe, or the like
CN104568347A (en) * 2014-12-22 2015-04-29 浙江中烟工业有限责任公司 Testing device and testing method for testing leakage of small cigarette case
JP2020536247A (en) * 2017-10-03 2020-12-10 イー・エム・デイー・ミリポア・コーポレイシヨン Integrity test of embossed film biotreatment container and biotreatment container

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50147385A (en) * 1974-05-16 1975-11-26

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50147385A (en) * 1974-05-16 1975-11-26

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5873836A (en) * 1981-10-28 1983-05-04 Toppan Printing Co Ltd Inspection of pin hole for container
JPH01203931A (en) * 1988-02-09 1989-08-16 Toyama Kensa Kk Small-sized leak testing instrument for tank, pipe, or the like
CN104568347A (en) * 2014-12-22 2015-04-29 浙江中烟工业有限责任公司 Testing device and testing method for testing leakage of small cigarette case
JP2020536247A (en) * 2017-10-03 2020-12-10 イー・エム・デイー・ミリポア・コーポレイシヨン Integrity test of embossed film biotreatment container and biotreatment container

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