GB1551718A – Processes for detecting periodic deviations of textile thread sensing signals
– Google Patents
GB1551718A – Processes for detecting periodic deviations of textile thread sensing signals
– Google Patents
Processes for detecting periodic deviations of textile thread sensing signals
Info
Publication number
GB1551718A
GB1551718A
GB1091278A
GB1091278A
GB1551718A
GB 1551718 A
GB1551718 A
GB 1551718A
GB 1091278 A
GB1091278 A
GB 1091278A
GB 1091278 A
GB1091278 A
GB 1091278A
GB 1551718 A
GB1551718 A
GB 1551718A
Authority
GB
United Kingdom
Prior art keywords
maximum
processes
steps
sensing signals
minimum value
Prior art date
1977-03-18
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
GB1091278A
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.)
Loepfe AG Gebrueder
Original Assignee
Loepfe AG Gebrueder
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.)
1977-03-18
Filing date
1978-03-20
Publication date
1979-08-30
1978-03-20
Application filed by Loepfe AG Gebrueder
filed
Critical
Loepfe AG Gebrueder
1979-08-30
Publication of GB1551718A
publication
Critical
patent/GB1551718A/en
Status
Expired
legal-status
Critical
Current
Links
Espacenet
Global Dossier
Discuss
Classifications
D—TEXTILES; PAPER
D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
D01H—SPINNING OR TWISTING
D01H13/00—Other common constructional features, details or accessories
D01H13/32—Counting, measuring, recording or registering devices
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
G01B7/12—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring diameters
G01B7/125—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring diameters of objects while moving
Abstract
The method is used for determining periodic fluctuations of the transverse dimension of a running yarn, particularly on open-end spinning machines for detecting the moiré effect. The electrical scanning signal (F’) is transformed into a sequence of needle pulses (S’); this pulse sequence (S’) is compared with a reference pulse sequence (Z’) of a particular preselected period (p). The mutual phase relationship of the pulse sequences (S’ and Z’) is changed in small steps, the number of coincidences of pulses within a number of such steps assuming either a maximum or not indicating any pronounced maximum. Two criteria for determining a maximum are specified. The first criterion is met when the number for T exceeds a particular minimum value; the second criterion applies when the sum of such excessive T values in successive test steps is greater than a further minimum value.
GB1091278A
1977-03-18
1978-03-20
Processes for detecting periodic deviations of textile thread sensing signals
Expired
GB1551718A
(en)
Applications Claiming Priority (1)
Application Number
Priority Date
Filing Date
Title
CH347577A
CH618944A5
(en)
1977-03-18
1977-03-18
Method for determining periodic fluctuations of a signal, particularly of a textile thread scanning signal.
Publications (1)
Publication Number
Publication Date
GB1551718A
true
GB1551718A
(en)
1979-08-30
Family
ID=4256770
Family Applications (1)
Application Number
Title
Priority Date
Filing Date
GB1091278A
Expired
GB1551718A
(en)
1977-03-18
1978-03-20
Processes for detecting periodic deviations of textile thread sensing signals
Country Status (8)
Country
Link
JP
(1)
JPS5942802B2
(en)
CH
(1)
CH618944A5
(en)
CS
(1)
CS220410B1
(en)
DE
(1)
DE2809218A1
(en)
ES
(1)
ES467707A1
(en)
FR
(1)
FR2384231A1
(en)
GB
(1)
GB1551718A
(en)
IT
(1)
IT1093862B
(en)
Families Citing this family (1)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
CH681462A5
(en)
*
1989-08-31
1993-03-31
Zellweger Uster Ag
Family Cites Families (4)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US2641960A
(en)
*
1947-05-14
1953-06-16
Deering Milliken Res Trust
Indicating and recording device for yarn diameters
US3069621A
(en)
*
1958-12-20
1962-12-18
Butticaz Andre
Apparatus for controlling uniformity of a flow of textile and the like fibres
CH603842A5
(en)
*
1975-10-10
1978-08-31
Peyer Siegfried
CH612152A5
(en)
*
1976-01-26
1979-07-13
Rieter Ag Maschf
1977
1977-03-18
CH
CH347577A
patent/CH618944A5/en
not_active
IP Right Cessation
1978
1978-03-03
DE
DE19782809218
patent/DE2809218A1/en
active
Granted
1978-03-09
ES
ES467707A
patent/ES467707A1/en
not_active
Expired
1978-03-14
CS
CS160978A
patent/CS220410B1/en
unknown
1978-03-15
JP
JP2977078A
patent/JPS5942802B2/en
not_active
Expired
1978-03-17
FR
FR7807818A
patent/FR2384231A1/en
active
Granted
1978-03-17
IT
IT2133478A
patent/IT1093862B/en
active
1978-03-20
GB
GB1091278A
patent/GB1551718A/en
not_active
Expired
Also Published As
Publication number
Publication date
JPS5942802B2
(en)
1984-10-17
DE2809218A1
(en)
1978-10-12
IT7821334D0
(en)
1978-03-17
IT1093862B
(en)
1985-07-26
CH618944A5
(en)
1980-08-29
JPS53116862A
(en)
1978-10-12
FR2384231A1
(en)
1978-10-13
CS220410B1
(en)
1983-04-29
DE2809218B2
(en)
1979-10-25
DE2809218C3
(en)
1980-07-17
ES467707A1
(en)
1979-07-01
FR2384231B1
(en)
1980-11-28
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Legal Events
Date
Code
Title
Description
1979-11-14
PS
Patent sealed
1986-11-19
PCNP
Patent ceased through non-payment of renewal fee
