JPS641936A - Paper orientation meter - Google Patents

Paper orientation meter

Info

Publication number
JPS641936A
JPS641936A JP15733487A JP15733487A JPS641936A JP S641936 A JPS641936 A JP S641936A JP 15733487 A JP15733487 A JP 15733487A JP 15733487 A JP15733487 A JP 15733487A JP S641936 A JPS641936 A JP S641936A
Authority
JP
Japan
Prior art keywords
light
polarizer
pulp
orientation
paper
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
JP15733487A
Other languages
Japanese (ja)
Other versions
JPH011936A (en
Inventor
Seiichiro Kiyobe
Shigeo Takahashi
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.)
Yokogawa Electric Corp
Original Assignee
Yokogawa Electric Corp
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 Yokogawa Electric Corp filed Critical Yokogawa Electric Corp
Priority to JP62-157334A priority Critical patent/JPH011936A/en
Priority claimed from JP62-157334A external-priority patent/JPH011936A/en
Publication of JPS641936A publication Critical patent/JPS641936A/en
Publication of JPH011936A publication Critical patent/JPH011936A/en
Pending legal-status Critical Current

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  • Investigating Or Analysing Materials By Optical Means (AREA)

Abstract

PURPOSE: To achieve non-contact measurement of orientation property of pulp, by irradiating a paper with light as parallel light with a collimation lens to obtain a signal output corresponding to the orientation of the pulp from an angle of polarization of a polarizer, when the quantity of light received by a light receiving means reaches its maximum.
CONSTITUTION: Light from a light source 2 is turned with a collimation lens 3 to a parallel light to irradiate a paper 8. The light transmitted through the paper 8 is applied to a polarizer 5. When an orientation of pulp at an irradiated part and an angle of polarization of the polarizer 5 coincide, the quantity of light transmitted through the portion of the polarizer 5 reaches its maximum. Then, when orientation of the pulp differs by 90° from the angle of polarization of the polarizer 5, the quantity of the transmission light reaches its minimum. A signal output is obtained in accordance with the orientation of the pulp from the angle of polarization of the polarizer 5 as obtained when the quantity of light received with a photo detector 7 reaches its maximum. Such measurement is performed sequentially across the width of the paper 8 to detect the degree of width-wise orientation of the pulp.
COPYRIGHT: (C)1989,JPO&Japio
JP62-157334A 1987-06-24 paper orientation meter Pending JPH011936A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62-157334A JPH011936A (en) 1987-06-24 paper orientation meter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62-157334A JPH011936A (en) 1987-06-24 paper orientation meter

Publications (2)

Publication Number Publication Date
JPS641936A true JPS641936A (en) 1989-01-06
JPH011936A JPH011936A (en) 1989-01-06

Family

ID=

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7164145B2 (en) * 2005-05-12 2007-01-16 Honeywell International Inc. Measuring fiber orientation by detecting dispersion of polarized light
US10362245B2 (en) 2013-02-01 2019-07-23 Hamamatsu Photonics K.K. Imaging device that performs rolling readout of pixel rows to acquire an image of an object

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60231136A (en) * 1984-05-01 1985-11-16 Kanzaki Paper Mfg Co Ltd Method for measuring paper fiber orientation

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60231136A (en) * 1984-05-01 1985-11-16 Kanzaki Paper Mfg Co Ltd Method for measuring paper fiber orientation

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7164145B2 (en) * 2005-05-12 2007-01-16 Honeywell International Inc. Measuring fiber orientation by detecting dispersion of polarized light
JP2008541088A (en) * 2005-05-12 2008-11-20 ハネウェル・インターナショナル・インコーポレーテッド Method and apparatus for measurement of fiber orientation
US10362245B2 (en) 2013-02-01 2019-07-23 Hamamatsu Photonics K.K. Imaging device that performs rolling readout of pixel rows to acquire an image of an object

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