JPS5852505A - Measuring instrument for length of paper fiber - Google Patents

Measuring instrument for length of paper fiber

Info

Publication number
JPS5852505A
JPS5852505A JP14696982A JP14696982A JPS5852505A JP S5852505 A JPS5852505 A JP S5852505A JP 14696982 A JP14696982 A JP 14696982A JP 14696982 A JP14696982 A JP 14696982A JP S5852505 A JPS5852505 A JP S5852505A
Authority
JP
Japan
Prior art keywords
length
fiber
paper fiber
capillary tube
measuring instrument
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.)
Pending
Application number
JP14696982A
Other languages
Japanese (ja)
Inventor
タピオ・マコネン
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.)
KAYAANI OOWAI
Original Assignee
KAYAANI OOWAI
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 KAYAANI OOWAI filed Critical KAYAANI OOWAI
Publication of JPS5852505A publication Critical patent/JPS5852505A/en
Pending 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
    • G01N33/34—Paper
    • G01N33/343—Paper pulp
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B11/00—Measuring arrangements characterised by the use of optical techniques
    • G01B11/02—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness
    • 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
    • G01N15/02—Investigating particle size or size distribution
    • G01N15/0205—Investigating particle size or size distribution by optical means

Landscapes

  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Dispersion Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Medicinal Chemistry (AREA)
  • Length Measuring Devices By Optical Means (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【発明の詳細な説明】 本発明は紙繊維長さ測定器に係り、該画定器は毛細音ヲ
有しており、測定されるべき繊維は液体に囲まれた状態
をなして該毛細管を通過するべく流されており、前記測
定器は更に、毛細管の一方の側に配備された光源と、該
毛細管の反対側に配備された光電池とを有しており、該
光電池の結果から繊維の長さが決定され得るよう構成さ
れている。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a paper fiber length measuring device, the delimiter has a capillary sound, and the fiber to be measured passes through the capillary tube while being surrounded by a liquid. The measuring device further includes a light source placed on one side of the capillary tube and a photovoltaic cell placed on the opposite side of the capillary tube, and the length of the fiber is determined from the result of the photovoltaic cell. It is configured such that the state can be determined.

本発明の目的は、今日用いられているものに較べ、繊維
の長さをより正確に測定することのできる紙繊維長さ測
定器を提供することである。本発明の紙繊維長さ測定器
は、光電池がダイオードマトリクスで成っており、該ダ
イオードマトリクスの複数のダイオードが、通過してい
る繊維の像から該繊維の長さを測定する構成を特徴とす
るものである。このように、本発明にあっては、通過し
ている繊維が成る点の所で複数のダイオ−ｒのうちの一
部を遮蔽し、これら遮蔽されたダイオードの数に基いて
繊維の長さが、紙繊維長さ測定器の一部をなす表示ユニ
ットから直ちに読み取ら１′シ得るので、極めて信頼性
が高く且つ正確な繊維の長さケ得ることができる。It is an object of the present invention to provide a paper fiber length meter that is capable of measuring fiber length more accurately than those used today. The paper fiber length measuring device of the present invention is characterized in that the photovoltaic cell is composed of a diode matrix, and a plurality of diodes of the diode matrix measure the length of the fiber from an image of the fiber passing through. It is something. In this way, in the present invention, some of the plurality of diodes are shielded at the point where the passing fiber is formed, and the length of the fiber is determined based on the number of these shielded diodes. is immediately readable from the display unit which forms part of the paper fiber length meter, making it possible to obtain very reliable and accurate fiber length measurements.

本発明の好適実施例においては、光源とダイオードマ）
　ＩＪクスとの間には交差せられた偏波器が置かれてお
り、これら偏波器により、測定器は、例えば空気の泡の
ごとき他の異物ではなく繊維のみを６１１１定の対象と
することができるようになっている。In a preferred embodiment of the invention, the light source and the diode
Crossed polarizers are placed between the IJ and the IJ, and these polarizers allow the measuring device to target only the fibers and not other foreign objects, such as air bubbles. It is now possible to do so.

以下本発明の実施例について添付図面を参照して説明す
る。Embodiments of the present invention will be described below with reference to the accompanying drawings.

紙繊維長さ測定器は毛細管１を有しており、測定される
べき繊維２は液体に囲まれた状態をなしてその毛細管１
を通過するべく導かれるようになっている。毛細管１の
一方の側には光源３が、また、その毛細管の反対側には
光電池４が夫々配備されている。その光′酸油４はダイ
オードマトリクスで成っており、そのダイオードマトリ
クスの複数のダイオード５は、通過している繊維２の像
からその繊維の長さ欠計算するようになっている。The paper fiber length measuring instrument has a capillary tube 1, and the fiber 2 to be measured is surrounded by a liquid and passes through the capillary tube 1.
It is designed to lead you through the A light source 3 is provided on one side of the capillary tube 1, and a photovoltaic cell 4 is provided on the opposite side of the capillary tube. The photoacid oil 4 consists of a diode matrix, and a plurality of diodes 5 of the diode matrix calculate the length of the fiber 2 from the image of the fiber 2 passing through it.

そして、光源３とダイオードマトリクス４との間には偏
波器６，７が備えられている。Polarizers 6 and 7 are provided between the light source 3 and the diode matrix 4.

繊維２は、矢印８で示される方向に毛細管１内をそれの
頂部から下方に通過するべく導かれている。光源３及び
レンズ６．７，９．１０により、ダイオードマトリクス
４には繊維のような形をした移動する像が得゛られる。The fibers 2 are guided to pass through the capillary tube 1 from its top downwards in the direction indicated by the arrow 8. By means of the light source 3 and the lenses 6.7, 9.10, a moving image in the form of a fiber is obtained in the diode matrix 4.

その像の下端がダイオードマトリクスの最下方ダイオー
ド１１に達すると、その像はその最下方ダイオードから
上方の複数のダイオード５のうちの一部を覆い、それに
より繊維の長さが、業界には周知の装置により直ちに読
み取られ得るようになっている。When the bottom edge of the image reaches the bottom diode 11 of the diode matrix, the image covers a portion of the plurality of diodes 5 above the bottom diode, such that the length of the fiber is It can be read immediately by any device.

轟業者には自明のごとく、前掲特許請求の範囲内で本発
明は様々な形で実施化され得るものである。It will be obvious to those skilled in the art that the invention may be embodied in various forms within the scope of the appended claims.

【図面の簡単な説明】[Brief explanation of the drawing]

図面は本発明実施例による紙繊維長さ測定器の概略図で
ある。 １・・・毛細管、２・・・繊維、３・・・光源、４・・
・ダイオードマトリクスでなる光電池、５，１１・・・
ダイオード、６，７・・・偏波器、８・・・矢印、９，
１０・・・レンズ。 代理人　浅　村　　　皓 外４名The drawing is a schematic diagram of a paper fiber length measuring device according to an embodiment of the present invention. 1... Capillary, 2... Fiber, 3... Light source, 4...
・Photovoltaic cell made of diode matrix, 5, 11...
Diode, 6, 7...Polarizer, 8...Arrow, 9,
10...Lens. Representatives: Asamura and 4 people

Claims (1)

【特許請求の範囲】 （１１紙繊維（２）の長さを測定するための測定器であ
って、毛細管（１）ン有しており、測定されるべき前記
繊維は液体に囲まれた状態をなして前記毛細管を通過す
るべく流されており、前記測定器は更に、前記毛細管の
一方の側に配備された光源（３）と、該毛細管の反対側
に配備された光電池（４）とを有している紙繊維長さ測
定器において、前記光電池（４）はダイオードマ）　Ｉ
Ｊクスから成っており、該ダイオードマトリクスの複数
のダイオード（５，１１）は、通過している前記繊維（
２）の像から該繊維の長さを計算するよう構成されてい
ることを特徴とする紙繊維長さ測定器。 伐）特許請求の範囲第１項記載の紙繊維長さ測定器にお
いて、前記光源（３）と前記ダイオードマトリクス（４
）との間には交差せられた偏波器（６，７）が備えられ
ていることを特徴とする紙繊維長さ測定器。[Claims] (11) A measuring device for measuring the length of paper fibers (2), comprising a capillary tube (1), in which the fibers to be measured are surrounded by a liquid. and a light source (3) disposed on one side of the capillary tube and a photovoltaic cell (4) disposed on the opposite side of the capillary tube. In the paper fiber length measuring instrument having a
The plurality of diodes (5, 11) of the diode matrix are connected to the fiber (
A paper fiber length measuring device, characterized in that it is configured to calculate the length of the fiber from the image of item 2). In the paper fiber length measuring device according to claim 1, the light source (3) and the diode matrix (4)
) A paper fiber length measuring instrument characterized in that crossed polarizers (6, 7) are provided between the two.
JP14696982A 1981-08-26 1982-08-26 Measuring instrument for length of paper fiber Pending JPS5852505A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI812627A FI812627L (en) 1981-08-26 1981-08-26 LAENGDMAETARE FOER PAPPERSFIBER
FI812627 1981-08-26

Publications (1)

Publication Number Publication Date
JPS5852505A true JPS5852505A (en) 1983-03-28

Family

ID=8514655

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14696982A Pending JPS5852505A (en) 1981-08-26 1982-08-26 Measuring instrument for length of paper fiber

Country Status (6)

Country Link
JP (1) JPS5852505A (en)
CA (1) CA1176839A (en)
DE (1) DE3230523A1 (en)
FI (1) FI812627L (en)
FR (1) FR2512196A1 (en)
SE (1) SE8204869L (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006523826A (en) * 2003-04-17 2006-10-19 コモンウエルス サイエンティフィック アンド インダストリアル リサーチ オーガナイゼーション Method and apparatus for testing fibers

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59114445A (en) * 1982-12-21 1984-07-02 Yamamura Glass Kk Apparatus for detecting defect of transparent body
JPS60231136A (en) * 1984-05-01 1985-11-16 Kanzaki Paper Mfg Co Ltd Measurement of fiber orientation in paper
DE3502406C2 (en) * 1985-01-22 1987-04-23 Dr. Peter + Steinwender Technische Geräte GmbH, 8176 Waakirchen Method and device for the continuous, contactless determination of the length of an undivided, moving body
US4837446A (en) * 1988-03-31 1989-06-06 International Paper Company Apparatus and process for testing uniformity of pulp
DE4118716A1 (en) * 1990-07-16 1992-01-23 Gerhart Schroff METHOD AND ARRANGEMENT FOR THE OPTICAL DETECTION AND EVALUATION OF SPREADING LIGHT SIGNALS
FR2681693A1 (en) * 1991-09-24 1993-03-26 Barrat Bertrand DEVICE FOR DIMENSIONAL ANALYSIS OF PARTICLES POSITIONED IN A PLANE.
US5293219A (en) * 1991-12-31 1994-03-08 Andritz Sprout-Bauer, Inc. Fiber length analyzer
US5311290A (en) * 1992-09-30 1994-05-10 Pulp And Paper Research Institute Of Canada Imaging apparatus and method of fiber analysis
WO1999037973A1 (en) 1998-01-22 1999-07-29 Maschinenfabrik Rieter Ag Method and device for measuring fibre length
DE19802315A1 (en) * 1998-01-22 1999-07-29 Rieter Ag Maschf Method of measuring fibre lengths
AU2004231118B2 (en) * 2003-04-17 2009-09-17 Commonwealth Scientific And Industrial Research Organisation Method and apparatus for testing fibres
US8120769B2 (en) 2007-08-03 2012-02-21 North Carolina State University Method and system for fiber properties measurement

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006523826A (en) * 2003-04-17 2006-10-19 コモンウエルス サイエンティフィック アンド インダストリアル リサーチ オーガナイゼーション Method and apparatus for testing fibers

Also Published As

Publication number Publication date
DE3230523A1 (en) 1983-03-17
FI812627L (en) 1983-02-27
FR2512196B3 (en) 1984-10-26
CA1176839A (en) 1984-10-30
SE8204869D0 (en) 1982-08-25
FR2512196A1 (en) 1983-03-04
SE8204869L (en) 1983-02-27

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