GB1373922A - - Google Patents

Info

Publication number
GB1373922A
GB1373922A GB4819471A GB4819471A GB1373922A GB 1373922 A GB1373922 A GB 1373922A GB 4819471 A GB4819471 A GB 4819471A GB 4819471 A GB4819471 A GB 4819471A GB 1373922 A GB1373922 A GB 1373922A
Authority
GB
United Kingdom
Prior art keywords
electrodes
yarn
electrode
circuit
measuring
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
GB4819471A
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 filed Critical
Publication of GB1373922A publication Critical patent/GB1373922A/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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H63/00—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package
    • B65H63/06—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package responsive to presence of irregularities in running material, e.g. for severing the material at irregularities ; Control of the correct working of the yarn cleaner
    • B65H63/062—Electronic slub detector
    • B65H63/064—Electronic slub detector using capacitor sensing means, i.e. the defect signal is a variation of impedance
    • 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
    • G01B7/02—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width or thickness
    • G01B7/06—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width or thickness for measuring thickness
    • G01B7/08—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width or thickness for measuring thickness using capacitive means
    • G01B7/087—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width or thickness for measuring thickness using capacitive means for measuring of objects while moving
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
    • G01N27/02—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance
    • G01N27/22—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating capacitance
    • G01N27/223—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating capacitance for determining moisture content, e.g. humidity
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/30—Handled filamentary material
    • B65H2701/31—Textiles threads or artificial strands of filaments

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Textile Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Medicinal Chemistry (AREA)
  • Food Science & Technology (AREA)
  • Quality & Reliability (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)

Abstract

1373922 Electro-physical measurements MANUFACTURE BELGE DE LAMPES ET DE MATERIEL ELECTRONIQUE S A 15 Oct 1971 [15 Oct 1970] 48194/71 Heading G1N A capacitive measuring head used to measure the local weight of a yarn, roving, textile strip or tape 5 which passes between the measuring capacitor is comprised of spaced electrodes 1, 2 the latter being positioned between reference electrodes 3', 3" and guard electrodes 4', 4". Electrodes 2, 3', 3", 4', 4" are made by printed circuit techniques on one face of a circuit board on the opposite face of which is disposed further guard electrodes 8 connected to electrodes 4', 4". A further circuit board is disposed in spaced relation and opposing the first board and includes electrode 1 facing the electrode 2 and further guard electrodes 8 on its opposite face. In operation after balancing the bridge circuit, including electrode 1, measuring electrode 2, reference electrodes 3', 3" and windings n 1 of transformer T, in the absence of the yarn 5 the yarn 5 is passed through the measuring capacitor 1, 2. The resulting bridge unbalance signals across resistor R, having an amplitude proportional to the linear weight of the yarn, is attenuated, detected and passed to a synchronous detector to obtain the capacitive component of the signal. The head may be used to alter the frequency of an oscillator circuit instead of used with a bridge circuit.
GB4819471A 1970-10-15 1971-10-15 Expired GB1373922A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BE95150 1970-10-15

Publications (1)

Publication Number Publication Date
GB1373922A true GB1373922A (en) 1974-11-13

Family

ID=3841417

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4819471A Expired GB1373922A (en) 1970-10-15 1971-10-15

Country Status (5)

Country Link
BE (1) BE757542A (en)
CH (1) CH551007A (en)
DE (1) DE2150928A1 (en)
FR (1) FR2110001A5 (en)
GB (1) GB1373922A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2502331A1 (en) * 1980-12-30 1982-09-24 Ki N Proizv Capacitive transducer for aerosol flow property measurement - has potential, null and compensation electrodes on dielectric bush
EP0924518A1 (en) * 1997-12-19 1999-06-23 Zellweger Luwa Ag Apparatus for measuring characteristics of a textile product
WO2006091161A1 (en) * 2005-02-24 2006-08-31 Kambo Skans Ab System and method for determining characteristics of a moving material by using microwaves
WO2008064501A2 (en) * 2006-12-01 2008-06-05 Hsr Hochschule Für Technik Rapperswil System for measuring a physical variable
WO2019070176A1 (en) * 2017-10-06 2019-04-11 Sealwacs Ab Plastic film sensor
BE1030707B1 (en) * 2022-07-12 2024-02-12 Deltrian Int Capacitive sensor monitoring dielectric variations of filter media

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE411392B (en) * 1977-12-09 1979-12-17 Inst Mikrovagsteknik Vid Tekni METHOD DEVICE FOR CAPACITIVE DETERMINATION OF THE INSIDE DOCTOR AT TWO RELATIVELY ONE MOVING PARTS
US4683418A (en) * 1984-08-06 1987-07-28 Wagner Electronic Products, Inc. Moisture measuring method and apparatus
DE4031210A1 (en) * 1990-10-04 1992-04-09 Bosch Gmbh Robert CAPACITIVE SENSOR FOR MEASURING A FUEL WALL FILM
US5414420A (en) * 1992-03-23 1995-05-09 Hewlett-Packard Corporation Switch interconnect for position encoder system
US5428355A (en) * 1992-03-23 1995-06-27 Hewlett-Packard Corporation Position encoder system

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2502331A1 (en) * 1980-12-30 1982-09-24 Ki N Proizv Capacitive transducer for aerosol flow property measurement - has potential, null and compensation electrodes on dielectric bush
EP0924518A1 (en) * 1997-12-19 1999-06-23 Zellweger Luwa Ag Apparatus for measuring characteristics of a textile product
US6072319A (en) * 1997-12-19 2000-06-06 Zellweger Luwa Ag Device for measuring properties of a textile product
WO2006091161A1 (en) * 2005-02-24 2006-08-31 Kambo Skans Ab System and method for determining characteristics of a moving material by using microwaves
WO2008064501A2 (en) * 2006-12-01 2008-06-05 Hsr Hochschule Für Technik Rapperswil System for measuring a physical variable
WO2008064501A3 (en) * 2006-12-01 2008-07-31 Hsr Hochschule Fuer Technik Ra System for measuring a physical variable
WO2019070176A1 (en) * 2017-10-06 2019-04-11 Sealwacs Ab Plastic film sensor
BE1030707B1 (en) * 2022-07-12 2024-02-12 Deltrian Int Capacitive sensor monitoring dielectric variations of filter media

Also Published As

Publication number Publication date
CH551007A (en) 1974-06-28
DE2150928A1 (en) 1972-05-31
BE757542A (en) 1971-03-16
FR2110001A5 (en) 1972-05-26

Similar Documents

Publication Publication Date Title
SE334033B (en)
GB1373922A (en)
US3228391A (en) Pulse rate transducer
GB1489760A (en) Capacitive measuring system
GB1533812A (en) Temperature measuring apparatus
GB1290615A (en)
GB1381307A (en) Method for the measurement of direct currents with floating input and direct time indication
GB1392110A (en) Apparatus and method for direct read-out of capacitively gauged dimensions
GB980467A (en) Induced current measuring apparatus
GB1502448A (en) Static capacitance type sensor
GB1152393A (en) Apparatus for Detecting the Wire Mark in Paper
AT339065B (en) MEASURING DEVICE WITH COMPENSATION OF A CONNECTED MEASURING SENSOR INFLUENCING DISTURBANCES
KR890015607A (en) Frequency detector
GB969898A (en) Deviation measuring and computing system
GB1527298A (en) Frequency measuring device
PL301603A1 (en) Rotary detector especially for use in volume measurements
GB1217611A (en) Circuit arrangement for damping measurement
SE7501685L (en) DEVICE FOR SATURATION OF THE MOISTURE CONTENT OF DIELECTRICAL MATERIALS.
FR2363113A1 (en) Sensitive AC bridge for instrumentation - has square wave fed to resistance bridge and phase detector sensing balance
ES480169A1 (en) Method and apparatus for acoustic signal detection
SU103050A1 (en) Detector frequency counter
GB1072852A (en) Device for detecting surface elevations in sheet material
JPS55149805A (en) Length monitoring method of continuous cloth
GB823340A (en) Improvements in or relating to steel measuring tapes
GB933443A (en) Improvements relating to the determination of the weight per unit of length of textile material

Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees