JPS5598333A - Particle counting device - Google Patents

Particle counting device

Info

Publication number
JPS5598333A
JPS5598333A JP629079A JP629079A JPS5598333A JP S5598333 A JPS5598333 A JP S5598333A JP 629079 A JP629079 A JP 629079A JP 629079 A JP629079 A JP 629079A JP S5598333 A JPS5598333 A JP S5598333A
Authority
JP
Japan
Prior art keywords
frequency dividing
circuit
variable frequency
detecting signal
dividing ratio
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
JP629079A
Other languages
Japanese (ja)
Inventor
Yosuke Tanabe
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.)
Sysmex Corp
Original Assignee
Sysmex 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 Sysmex Corp filed Critical Sysmex Corp
Priority to JP629079A priority Critical patent/JPS5598333A/en
Publication of JPS5598333A publication Critical patent/JPS5598333A/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
    • G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
    • G01N15/10—Investigating individual particles
    • G01N15/1031—Investigating individual particles by measuring electrical or magnetic effects
    • G01N15/12—Investigating individual particles by measuring electrical or magnetic effects by observing changes in resistance or impedance across apertures when traversed by individual particles, e.g. by using the Coulter principle
    • G01N15/131—Details
    • G01N15/132—Circuits

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)
  • Investigating Or Analysing Biological Materials (AREA)

Abstract

PURPOSE:To carry out the correction correctly be making small the frequency dividing ratio of a variable frequency dividing circuit by a memory and thereby simultaneously passing corrected. CONSTITUTION:A detecting circuit 14 receives a signal from electrodes 10, 12 to generate a detecting signal. A detecting signal is amplified by an amplifying circuit 18, a detecting signal corresponding to blood platelet is discriminated in a threshold circuit 16, counted in accordance with a frequency dividing ratio 50 in a variable frequency dividing circuit 30, the counted value thereof is displayed by a counting display circuit 22. By a memory 32, the frequency dividing ratio of a variable frequency dividing circuit 30 is made small, thereby the simultaneous passing correction can be done.
JP629079A 1979-01-22 1979-01-22 Particle counting device Pending JPS5598333A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP629079A JPS5598333A (en) 1979-01-22 1979-01-22 Particle counting device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP629079A JPS5598333A (en) 1979-01-22 1979-01-22 Particle counting device

Publications (1)

Publication Number Publication Date
JPS5598333A true JPS5598333A (en) 1980-07-26

Family

ID=11634246

Family Applications (1)

Application Number Title Priority Date Filing Date
JP629079A Pending JPS5598333A (en) 1979-01-22 1979-01-22 Particle counting device

Country Status (1)

Country Link
JP (1) JPS5598333A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57195443A (en) * 1981-05-26 1982-12-01 Technicon Instr Correcting of error due to duplicated detection of mixed particle

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50120880A (en) * 1974-03-01 1975-09-22
JPS5311075A (en) * 1976-07-19 1978-02-01 Toa Medical Electronics Particle counter

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50120880A (en) * 1974-03-01 1975-09-22
JPS5311075A (en) * 1976-07-19 1978-02-01 Toa Medical Electronics Particle counter

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57195443A (en) * 1981-05-26 1982-12-01 Technicon Instr Correcting of error due to duplicated detection of mixed particle
JPH0444690B2 (en) * 1981-05-26 1992-07-22 Technicon Instr

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