JPS5611343A - Measuring unit for specific surface area diameter of powder material - Google Patents

Measuring unit for specific surface area diameter of powder material

Info

Publication number
JPS5611343A
JPS5611343A JP8849179A JP8849179A JPS5611343A JP S5611343 A JPS5611343 A JP S5611343A JP 8849179 A JP8849179 A JP 8849179A JP 8849179 A JP8849179 A JP 8849179A JP S5611343 A JPS5611343 A JP S5611343A
Authority
JP
Japan
Prior art keywords
differential pressure
deltap0
input
proper
surface area
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.)
Granted
Application number
JP8849179A
Other languages
Japanese (ja)
Other versions
JPS5950926B2 (en
Inventor
Shozo Yano
Shohei Ishida
Tetsuo Nishimura
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.)
Shimadzu Corp
Original Assignee
Shimadzu Corp
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 Shimadzu Corp filed Critical Shimadzu Corp
Priority to JP8849179A priority Critical patent/JPS5950926B2/en
Publication of JPS5611343A publication Critical patent/JPS5611343A/en
Publication of JPS5950926B2 publication Critical patent/JPS5950926B2/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
    • G01N15/08—Investigating permeability, pore-volume, or surface area of porous materials
    • G01N15/088—Investigating volume, surface area, size or distribution of pores; Porosimetry

Landscapes

  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Measuring Arrangements Characterized By The Use Of Fluids (AREA)

Abstract

PURPOSE:To make the manual differential pressure set switching operation needless, by constituting a unit so that a pressure difference proper to flow rate measurement may be operated and set continuously for measured voids. CONSTITUTION:Differential pressure DELTAP between upper and lower ends of powder material sample 4 put in sample cell 1 is measured, and the electric signal indicating the measured value is fed back to servo amplifier 16. This feedback signal is compared with the set signal of proper differential pressure DELTAP0 which is input to servo amplifier 16 from differential pressure operation set circuit 21 previously, and air is fed to sample cell 1 until they agree with each other, and thus, control is so performed that DELTAP may agree with set proper differential pressure DELTAP0, and the value of this differential pressure DELTAP0 is input to operator 22 through differential pressure gauge 13. Simultaneously, the passage air quantity per one second of this differential pressure DELTAP0 is input to operator 22 from flow meter 12 as an electric signal also, thus obtaining a specific surface area diameter. In this manner, the manual differential pressure set switching operation can be needless.
JP8849179A 1979-07-10 1979-07-10 Powder specific surface area diameter measuring device Expired JPS5950926B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8849179A JPS5950926B2 (en) 1979-07-10 1979-07-10 Powder specific surface area diameter measuring device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8849179A JPS5950926B2 (en) 1979-07-10 1979-07-10 Powder specific surface area diameter measuring device

Publications (2)

Publication Number Publication Date
JPS5611343A true JPS5611343A (en) 1981-02-04
JPS5950926B2 JPS5950926B2 (en) 1984-12-11

Family

ID=13944272

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8849179A Expired JPS5950926B2 (en) 1979-07-10 1979-07-10 Powder specific surface area diameter measuring device

Country Status (1)

Country Link
JP (1) JPS5950926B2 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62228138A (en) * 1986-03-28 1987-10-07 Shimadzu Corp Apparatus for measuring specific surface area diameter of powdery material
JPS63502450A (en) * 1986-01-06 1988-09-14 マラソン・オイル・カンパニ− Method and apparatus for measuring pore volume and permeability of close-core plugs
WO2006016660A1 (en) * 2004-08-12 2006-02-16 Herzog Japan Co., Ltd. Molding device for sample for measuring specific surface area of powder
CN104677766A (en) * 2014-09-30 2015-06-03 北京城市排水集团有限责任公司 Method for detecting volcanic biological filter material

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5978333U (en) * 1982-11-17 1984-05-26 株式会社クボタ Footboards for transport vehicles

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63502450A (en) * 1986-01-06 1988-09-14 マラソン・オイル・カンパニ− Method and apparatus for measuring pore volume and permeability of close-core plugs
JPH0421132B2 (en) * 1986-01-06 1992-04-08 Marathon Oil Co
JPS62228138A (en) * 1986-03-28 1987-10-07 Shimadzu Corp Apparatus for measuring specific surface area diameter of powdery material
WO2006016660A1 (en) * 2004-08-12 2006-02-16 Herzog Japan Co., Ltd. Molding device for sample for measuring specific surface area of powder
JP4827190B2 (en) * 2004-08-12 2011-11-30 ハルツォク・ジャパン株式会社 Sample forming device for measuring specific surface area of powder
CN104677766A (en) * 2014-09-30 2015-06-03 北京城市排水集团有限责任公司 Method for detecting volcanic biological filter material

Also Published As

Publication number Publication date
JPS5950926B2 (en) 1984-12-11

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