JPS5723839A - Measuring device for automatic particle size distribution - Google Patents

Measuring device for automatic particle size distribution

Info

Publication number
JPS5723839A
JPS5723839A JP9902280A JP9902280A JPS5723839A JP S5723839 A JPS5723839 A JP S5723839A JP 9902280 A JP9902280 A JP 9902280A JP 9902280 A JP9902280 A JP 9902280A JP S5723839 A JPS5723839 A JP S5723839A
Authority
JP
Japan
Prior art keywords
particle size
maximum particle
measuring
calculated
size distribution
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
JP9902280A
Other languages
Japanese (ja)
Other versions
JPH0254490B2 (en
Inventor
Kazu Takeuchi
Shohei Ishida
Tetsuo Nishimura
Yasuhiro Fujinaga
Shozo Yano
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 JP9902280A priority Critical patent/JPS5723839A/en
Publication of JPS5723839A publication Critical patent/JPS5723839A/en
Publication of JPH0254490B2 publication Critical patent/JPH0254490B2/ja
Granted 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
    • G01N15/04—Investigating sedimentation of particle suspensions

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)
  • Sampling And Sample Adjustment (AREA)
  • Length Measuring Devices By Optical Means (AREA)

Abstract

PURPOSE:To indicate definitely acceptance or rejection of a limit of measurement by estimating a maximum particle size obtainable previously from a measuring condition with a register that stores the measuring condition, an automatic part and a program part in a measuring device for particle size distribution using a precipitation method. CONSTITUTION:Various constants that serve as measuring conditions are inputted with a keyboard 13 and stored in a register 7. Further by substituting various constants in a Stokes's equation in an arithmetic part 10 according to a program part 10 to permit a measured maximum particle size to be calculated, by comparing the result with a table for particle sizes that was set previously with a setting device 8 and by selecting a particle size that is equal to or is smaller than but the closest to a calculated maximum particle size, the resulted value is made to be an actual maximum particle size. If this value is <=200mum, a Reynolds number is then calculated, and if <=0.6, the measuring condition is considered that it was satisfied, and thus the measured maximum particle size selected from the particle size distribution table is indicated on an indicator 11. Here an operator can recognize whether the upper limit for measurement coincides with the measuring range that is a target or not, and if coinciding, permits a motor to rotate and executes a centrifugal sedimentation method.
JP9902280A 1980-07-18 1980-07-18 Measuring device for automatic particle size distribution Granted JPS5723839A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9902280A JPS5723839A (en) 1980-07-18 1980-07-18 Measuring device for automatic particle size distribution

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9902280A JPS5723839A (en) 1980-07-18 1980-07-18 Measuring device for automatic particle size distribution

Publications (2)

Publication Number Publication Date
JPS5723839A true JPS5723839A (en) 1982-02-08
JPH0254490B2 JPH0254490B2 (en) 1990-11-21

Family

ID=14235586

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9902280A Granted JPS5723839A (en) 1980-07-18 1980-07-18 Measuring device for automatic particle size distribution

Country Status (1)

Country Link
JP (1) JPS5723839A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104089855A (en) * 2014-07-17 2014-10-08 清华大学深圳研究生院 Method and device for measuring particles by polarized light scattering

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5247715A (en) * 1975-10-13 1977-04-15 Tani Denki Kogyo Kk Earplug type handset equipped with an input-output separator

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5247715A (en) * 1975-10-13 1977-04-15 Tani Denki Kogyo Kk Earplug type handset equipped with an input-output separator

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104089855A (en) * 2014-07-17 2014-10-08 清华大学深圳研究生院 Method and device for measuring particles by polarized light scattering

Also Published As

Publication number Publication date
JPH0254490B2 (en) 1990-11-21

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