IT994477B - Dispositivo di scansione adatto per la determinazione del numero e grandezza di particelle in un campo prefissato - Google Patents

Dispositivo di scansione adatto per la determinazione del numero e grandezza di particelle in un campo prefissato

Info

Publication number
IT994477B
IT994477B IT53461/73A IT5346173A IT994477B IT 994477 B IT994477 B IT 994477B IT 53461/73 A IT53461/73 A IT 53461/73A IT 5346173 A IT5346173 A IT 5346173A IT 994477 B IT994477 B IT 994477B
Authority
IT
Italy
Prior art keywords
prefixed
particles
determining
size
field
Prior art date
Application number
IT53461/73A
Other languages
English (en)
Italian (it)
Original Assignee
Minnesota Mining & Mfg
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 Minnesota Mining & Mfg filed Critical Minnesota Mining & Mfg
Application granted granted Critical
Publication of IT994477B publication Critical patent/IT994477B/it

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06M—COUNTING MECHANISMS; COUNTING OF OBJECTS NOT OTHERWISE PROVIDED FOR
    • G06M11/00—Counting of objects distributed at random, e.g. on a surface

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Analysing Materials By The Use Of Radiation (AREA)
  • Photometry And Measurement Of Optical Pulse Characteristics (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
IT53461/73A 1972-11-01 1973-10-31 Dispositivo di scansione adatto per la determinazione del numero e grandezza di particelle in un campo prefissato IT994477B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US302810A US3867613A (en) 1972-11-01 1972-11-01 Particle counting apparatus

Publications (1)

Publication Number Publication Date
IT994477B true IT994477B (it) 1975-10-20

Family

ID=23169301

Family Applications (1)

Application Number Title Priority Date Filing Date
IT53461/73A IT994477B (it) 1972-11-01 1973-10-31 Dispositivo di scansione adatto per la determinazione del numero e grandezza di particelle in un campo prefissato

Country Status (8)

Country Link
US (1) US3867613A (cs)
JP (1) JPS4978585A (cs)
AU (1) AU470830B2 (cs)
CA (1) CA996770A (cs)
FR (1) FR2204839A1 (cs)
GB (1) GB1406575A (cs)
IT (1) IT994477B (cs)
NL (1) NL7314406A (cs)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3978324A (en) * 1975-02-04 1976-08-31 Hawker Siddeley Dynamics Limited Automatic crop inventory system
US4207001A (en) * 1976-05-24 1980-06-10 The University Of Queensland Particle size analyzer
US4181130A (en) * 1977-11-04 1980-01-01 Ivac Corporation Drop discriminator system
JPH01296974A (ja) * 1988-05-23 1989-11-30 Toyo Jozo Co Ltd コロニー計数装置
US7039823B2 (en) * 2002-04-26 2006-05-02 Texas Instruments Incorporated On-chip reset circuitry and method
US7109475B1 (en) * 2005-04-28 2006-09-19 Thermo Finnigan Llc Leading edge/trailing edge TOF detection
DE102006021487B3 (de) * 2006-05-05 2007-09-06 Parsum Gmbh Verfahren und Vorrichtung zur Bestimmung der in einem Partikelstrom enthaltenen Partikel
US9984861B2 (en) 2014-04-11 2018-05-29 Micromass Uk Limited Ion entry/exit device

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB778288A (en) * 1954-05-28 1957-07-03 Cinema Television Ltd Improvements in or relating to the electronic counting of objects
US2948470A (en) * 1957-03-15 1960-08-09 Du Mont Allen B Lab Inc Particle counter
DE1084059B (de) * 1957-05-17 1960-06-23 Philips Nv Vorrichtung zur Teilchenzaehlung
US3178688A (en) * 1962-12-20 1965-04-13 Control Data Corp Character recognition by feature selection
US3437394A (en) * 1966-07-26 1969-04-08 Nasa Electromagnetic mirror drive system
US3557352A (en) * 1967-11-01 1971-01-19 Coulter Electronics Apparatus and method for measuring a dividing particle size of a particulate system

Also Published As

Publication number Publication date
DE2355119A1 (de) 1974-05-22
GB1406575A (en) 1975-09-17
DE2355119B2 (de) 1977-01-27
JPS4978585A (cs) 1974-07-29
US3867613A (en) 1975-02-18
AU6204973A (en) 1975-05-01
FR2204839A1 (cs) 1974-05-24
AU470830B2 (en) 1976-04-01
NL7314406A (cs) 1974-05-03
CA996770A (en) 1976-09-14

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