GB681477A - Improvements in or relating to a method and appliance for determining the mean deviation of the variable quantity of substance in the cross-section of slivers, rovings and yarns from its average value - Google Patents

Improvements in or relating to a method and appliance for determining the mean deviation of the variable quantity of substance in the cross-section of slivers, rovings and yarns from its average value

Info

Publication number
GB681477A
GB681477A GB3637/50A GB363750A GB681477A GB 681477 A GB681477 A GB 681477A GB 3637/50 A GB3637/50 A GB 3637/50A GB 363750 A GB363750 A GB 363750A GB 681477 A GB681477 A GB 681477A
Authority
GB
United Kingdom
Prior art keywords
average value
representing
pass filter
substance
low
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
GB3637/50A
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.)
Zellweger Uster AG
Original Assignee
Zellweger Uster AG
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 Zellweger Uster AG filed Critical Zellweger Uster AG
Publication of GB681477A publication Critical patent/GB681477A/en
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
    • G01N33/365—Filiform textiles, e.g. yarns
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
    • G01B7/34—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring roughness or irregularity of surfaces
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R13/00—Arrangements for displaying electric variables or waveforms
    • G01R13/04—Arrangements for displaying electric variables or waveforms for producing permanent records

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Food Science & Technology (AREA)
  • Medicinal Chemistry (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Measurement Of Resistance Or Impedance (AREA)

Abstract

681,477. Electric indicating systems. ZELLWEGER AKT.-GES. APPARATE-UND MASCHINENFABRIKEN USTER. Feb. 13, 1950 [March 15, 1949], No. 3637/50. Class 40 (i) [Also in Groups IX and XXXVI] In apparatus for determining the mean deviation from average of an electrical signal representing a physical magnitude e.g. the quantity of substance in the cross-section of textile slivers, yarns or rovings, the fluctuating signal component representing the deviations from the average value and the steady component representing the average value are separated by a low-pass filter and the former component is rectified, averaged in a second low-pass filter, and measured by an electrical recording instrument. In Fig. 3 an electrical instrument 30 of the kind described in Specification 638,365, [Group XXXVI], for measuring the quantity of substance in textile slivers supplies a fluctuating signal for a capacitance-resistance (or inductance) low-pass filter 31 whose output, representing the steady average value, is measured by a recording instrument 32, 33. The alternating signal across the ends of filter resistances 40, 42, 44, representing the deviations from the average value, energizes a bridge rectifier 34 through a condenser 39, and the unidirectional output is applied to a second resistance-capacitance low-pass filter 35 to produce a steady output, representing the mean deviation from the average value, which is measured by a recording instrument 36, 37. The rectifier or measuring instrument characteristics may be such that the R.M.S. value of the deviation is recorded.
GB3637/50A 1949-03-15 1950-02-13 Improvements in or relating to a method and appliance for determining the mean deviation of the variable quantity of substance in the cross-section of slivers, rovings and yarns from its average value Expired GB681477A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH681477X 1949-03-15

Publications (1)

Publication Number Publication Date
GB681477A true GB681477A (en) 1952-10-22

Family

ID=4528502

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3637/50A Expired GB681477A (en) 1949-03-15 1950-02-13 Improvements in or relating to a method and appliance for determining the mean deviation of the variable quantity of substance in the cross-section of slivers, rovings and yarns from its average value

Country Status (4)

Country Link
CH (1) CH262827A (en)
DE (1) DE810433C (en)
GB (1) GB681477A (en)
NL (1) NL78154C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3113453A (en) * 1959-11-06 1963-12-10 Pagnacco Arrigo Apparatus for determining and evaluating a curve indicating the frequency of test values in a series of tests
EP0207471A2 (en) * 1985-07-03 1987-01-07 Barmag Ag Method for measuring the quality of a running yarn

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1068913B (en) * 1959-11-12
DE1092696B (en) * 1956-05-03 1960-11-10 Andre Butticaz Method and device for determining the relative non-uniformity of continuously supplied amounts of material, in particular of textile fiber strands
FR1150424A (en) * 1956-05-03 1958-01-13 Method and apparatus for checking irregularity in streams of textile or the like
DE1218743B (en) * 1958-03-06 1966-06-08 Tno Device for measuring and monitoring, in particular of textile threads or yarns with at least one measuring capacitor in the branch of a capacitance measuring bridge
DE1220157B (en) * 1960-04-08 1966-06-30 Zellweger A G Device for measuring the mean value of an electrical voltage over time
DE1245605B (en) * 1964-10-20 1967-07-27 Janez Peklenik Dr Ing Method and device for determining parameters in stochastic processes
DE2404136C3 (en) * 1973-02-05 1984-06-28 Gebrüder Loepfe AG, Wetzikon Device for setting the cleaning limits of an electronic thread cleaner

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3113453A (en) * 1959-11-06 1963-12-10 Pagnacco Arrigo Apparatus for determining and evaluating a curve indicating the frequency of test values in a series of tests
EP0207471A2 (en) * 1985-07-03 1987-01-07 Barmag Ag Method for measuring the quality of a running yarn
EP0207471A3 (en) * 1985-07-03 1989-10-11 B A R M A G Barmer Maschinenfabrik Aktiengesellschaft Method for measuring the traction force of a running yarn

Also Published As

Publication number Publication date
DE810433C (en) 1951-08-09
CH262827A (en) 1949-07-31
NL78154C (en)

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