FR1425239A - Appareil pour la mesure de la longueur de fibres - Google Patents

Appareil pour la mesure de la longueur de fibres

Info

Publication number
FR1425239A
FR1425239A FR7088A FR7088A FR1425239A FR 1425239 A FR1425239 A FR 1425239A FR 7088 A FR7088 A FR 7088A FR 7088 A FR7088 A FR 7088A FR 1425239 A FR1425239 A FR 1425239A
Authority
FR
France
Prior art keywords
fibers
measuring
length
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.)
Expired
Application number
FR7088A
Other languages
English (en)
French (fr)
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.)
Eastman Kodak Co
Original Assignee
Eastman Kodak Co
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 Eastman Kodak Co filed Critical Eastman Kodak Co
Application granted granted Critical
Publication of FR1425239A publication Critical patent/FR1425239A/fr
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/36—Textiles
    • G01N33/362—Material before processing, e.g. bulk cotton or wool
    • 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
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R29/00—Arrangements for measuring or indicating electric quantities not covered by groups G01R19/00 - G01R27/00
    • G01R29/02—Measuring characteristics of individual pulses, e.g. deviation from pulse flatness, rise time or duration
    • G01R29/027—Indicating that a pulse characteristic is either above or below a predetermined value or within or beyond a predetermined range of values
    • G01R29/0273—Indicating that a pulse characteristic is either above or below a predetermined value or within or beyond a predetermined range of values the pulse characteristic being duration, i.e. width (indicating that frequency of pulses is above or below a certain limit)

Landscapes

  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Medicinal Chemistry (AREA)
  • Food Science & Technology (AREA)
  • Textile Engineering (AREA)
  • Dispersion Chemistry (AREA)
  • Paper (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
FR7088A 1964-02-28 1965-02-26 Appareil pour la mesure de la longueur de fibres Expired FR1425239A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US34823964A 1964-02-28 1964-02-28

Publications (1)

Publication Number Publication Date
FR1425239A true FR1425239A (fr) 1966-01-14

Family

ID=23367170

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7088A Expired FR1425239A (fr) 1964-02-28 1965-02-26 Appareil pour la mesure de la longueur de fibres

Country Status (5)

Country Link
BE (1) BE660355A (no)
CH (1) CH445163A (no)
DE (1) DE1598377B2 (no)
FR (1) FR1425239A (no)
GB (1) GB1093461A (no)

Also Published As

Publication number Publication date
BE660355A (no) 1965-06-16
DE1598377B2 (de) 1972-11-16
DE1598377A1 (de) 1972-02-10
CH445163A (de) 1967-10-15
GB1093461A (en) 1967-12-06

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