JPS55135731A - Particle analyzer - Google Patents

Particle analyzer

Info

Publication number
JPS55135731A
JPS55135731A JP4344279A JP4344279A JPS55135731A JP S55135731 A JPS55135731 A JP S55135731A JP 4344279 A JP4344279 A JP 4344279A JP 4344279 A JP4344279 A JP 4344279A JP S55135731 A JPS55135731 A JP S55135731A
Authority
JP
Japan
Prior art keywords
circuit
input
frequency division
output circuit
comparators
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
JP4344279A
Other languages
Japanese (ja)
Other versions
JPS6239374B2 (en
Inventor
Masayoshi Hayashi
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 JP4344279A priority Critical patent/JPS55135731A/en
Publication of JPS55135731A publication Critical patent/JPS55135731A/en
Publication of JPS6239374B2 publication Critical patent/JPS6239374B2/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
    • G01N15/10—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 enable to perform succeeding process with low cost by means of microcomputer integrated, by widening the pulse intervals for th processed pulse with the frequency division circuit having suitable frequency dividing ratio. CONSTITUTION:The comparison circuit 14 consisting of a number of comparators which discriminates the magnitude of the particle signal is connected to the detection circuit 7 of the detector 8 via the amplifying circuit amplifying the signal to a given level. The frequency division circuits 15 having 10-50 of frequency division ratio provided parallelly with the number equal to that of the comparators are connected to the comparison circuit 14, and the input and output circuit 16 is connected to the frequency division circuit 15. Further, the operation circuit 17, read only memory 18, readout and write-in memory 20 and input and output circuit 21 are connected in parallel with this input and output circuit 16, and the display and recording units such as display unit 22 and recorder 23 are connected to this input and output circuit 21.
JP4344279A 1979-04-09 1979-04-09 Particle analyzer Granted JPS55135731A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4344279A JPS55135731A (en) 1979-04-09 1979-04-09 Particle analyzer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4344279A JPS55135731A (en) 1979-04-09 1979-04-09 Particle analyzer

Publications (2)

Publication Number Publication Date
JPS55135731A true JPS55135731A (en) 1980-10-22
JPS6239374B2 JPS6239374B2 (en) 1987-08-22

Family

ID=12663806

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4344279A Granted JPS55135731A (en) 1979-04-09 1979-04-09 Particle analyzer

Country Status (1)

Country Link
JP (1) JPS55135731A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55163433A (en) * 1979-06-06 1980-12-19 Toa Medical Electronics Co Ltd Particle analysing device
JPS5779433A (en) * 1980-11-04 1982-05-18 Toa Medical Electronics Co Ltd Particle analyzing device
JPS5779434A (en) * 1980-11-04 1982-05-18 Toa Medical Electronics Co Ltd Particle analyzing device

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4858896A (en) * 1971-11-04 1973-08-17
JPS5315865A (en) * 1976-07-28 1978-02-14 Toa Medical Electronics Particle counter

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4858896A (en) * 1971-11-04 1973-08-17
JPS5315865A (en) * 1976-07-28 1978-02-14 Toa Medical Electronics Particle counter

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55163433A (en) * 1979-06-06 1980-12-19 Toa Medical Electronics Co Ltd Particle analysing device
JPS6239375B2 (en) * 1979-06-06 1987-08-22 Toa Medical Electronics
JPS5779433A (en) * 1980-11-04 1982-05-18 Toa Medical Electronics Co Ltd Particle analyzing device
JPS5779434A (en) * 1980-11-04 1982-05-18 Toa Medical Electronics Co Ltd Particle analyzing device
JPH0147735B2 (en) * 1980-11-04 1989-10-16 Toa Medical Electronics
JPH0147734B2 (en) * 1980-11-04 1989-10-16 Toa Medical Electronics

Also Published As

Publication number Publication date
JPS6239374B2 (en) 1987-08-22

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