JPS57146131A - Sampling device - Google Patents

Sampling device

Info

Publication number
JPS57146131A
JPS57146131A JP3159881A JP3159881A JPS57146131A JP S57146131 A JPS57146131 A JP S57146131A JP 3159881 A JP3159881 A JP 3159881A JP 3159881 A JP3159881 A JP 3159881A JP S57146131 A JPS57146131 A JP S57146131A
Authority
JP
Japan
Prior art keywords
pump
pressure
outlet side
inlet side
pipe
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
JP3159881A
Other languages
Japanese (ja)
Inventor
Toshimasa Saito
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura 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.)
Filing date
Publication date
Application filed by Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP3159881A priority Critical patent/JPS57146131A/en
Publication of JPS57146131A publication Critical patent/JPS57146131A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N1/00—Sampling; Preparing specimens for investigation
    • G01N1/02—Devices for withdrawing samples
    • G01N1/22—Devices for withdrawing samples in the gaseous state
    • G01N1/24—Suction devices

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Molecular Biology (AREA)
  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Sampling And Sample Adjustment (AREA)

Abstract

PURPOSE:To increase life of a pump and perform stable sampling, by a method wherein a control valve for flow rate or pressure is installed in parallel to a pump, the valve is controlled according to pressure variation within a pipe at inlet side or outlet side of the pump, and fluid in outlet side is returned to inlet side. CONSTITUTION:If pressure of a pump 11 rises at inlet side therefore at outlet side, the pressure rise is detected by a pressure detector 14 installed in a pipe 12b at outlet side, and a pressure adjusting device 15 controls opening of a flow rate control valve 16 so as to return the gas fluid to a pipe 12a at inlet side. In this constitution, life of the pump is increased and the sampling is performed stably.
JP3159881A 1981-03-05 1981-03-05 Sampling device Pending JPS57146131A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3159881A JPS57146131A (en) 1981-03-05 1981-03-05 Sampling device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3159881A JPS57146131A (en) 1981-03-05 1981-03-05 Sampling device

Publications (1)

Publication Number Publication Date
JPS57146131A true JPS57146131A (en) 1982-09-09

Family

ID=12335627

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3159881A Pending JPS57146131A (en) 1981-03-05 1981-03-05 Sampling device

Country Status (1)

Country Link
JP (1) JPS57146131A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6073336A (en) * 1983-09-30 1985-04-25 Hitachi Ltd Sampling gas introducing apparatus
JPS6150248U (en) * 1984-09-07 1986-04-04
CN105571909A (en) * 2014-10-28 2016-05-11 中国科学院大连化学物理研究所 Exhaled air acquisition pressure-stabilizing flow rate control device and application

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5022692A (en) * 1973-06-27 1975-03-11
JPS5289986A (en) * 1976-01-23 1977-07-28 Hitachi Ltd Sampling apparatus
JPS52129587A (en) * 1976-04-24 1977-10-31 Fuji Electric Co Ltd Gas analyzer

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5022692A (en) * 1973-06-27 1975-03-11
JPS5289986A (en) * 1976-01-23 1977-07-28 Hitachi Ltd Sampling apparatus
JPS52129587A (en) * 1976-04-24 1977-10-31 Fuji Electric Co Ltd Gas analyzer

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6073336A (en) * 1983-09-30 1985-04-25 Hitachi Ltd Sampling gas introducing apparatus
JPH0361899B2 (en) * 1983-09-30 1991-09-24 Hitachi Ltd
JPS6150248U (en) * 1984-09-07 1986-04-04
JPH0431578Y2 (en) * 1984-09-07 1992-07-29
CN105571909A (en) * 2014-10-28 2016-05-11 中国科学院大连化学物理研究所 Exhaled air acquisition pressure-stabilizing flow rate control device and application

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