FI56903C - Anordning foer maetning av fuktinnehaollet i ett arkmaterial - Google Patents
Anordning foer maetning av fuktinnehaollet i ett arkmaterial Download PDFInfo
- Publication number
- FI56903C FI56903C FI2738/73A FI273873A FI56903C FI 56903 C FI56903 C FI 56903C FI 2738/73 A FI2738/73 A FI 2738/73A FI 273873 A FI273873 A FI 273873A FI 56903 C FI56903 C FI 56903C
- Authority
- FI
- Finland
- Prior art keywords
- radiation
- detector
- source
- paper
- web
- Prior art date
Links
- 230000005855 radiation Effects 0.000 claims description 62
- 239000000463 material Substances 0.000 claims description 22
- 238000005259 measurement Methods 0.000 claims description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 18
- 230000003595 spectral effect Effects 0.000 claims description 6
- 239000000126 substance Substances 0.000 claims description 6
- 239000010453 quartz Substances 0.000 claims description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 5
- 239000003795 chemical substances by application Substances 0.000 claims 1
- 230000003252 repetitive effect Effects 0.000 claims 1
- 230000035945 sensitivity Effects 0.000 description 16
- 230000003287 optical effect Effects 0.000 description 9
- 238000000576 coating method Methods 0.000 description 8
- 239000000835 fiber Substances 0.000 description 8
- 239000011248 coating agent Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 238000002360 preparation method Methods 0.000 description 5
- 230000008901 benefit Effects 0.000 description 4
- 230000007704 transition Effects 0.000 description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 3
- 238000005303 weighing Methods 0.000 description 3
- 230000002238 attenuated effect Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 239000011121 hardwood Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000011122 softwood Substances 0.000 description 2
- 241001417527 Pempheridae Species 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 238000003556 assay Methods 0.000 description 1
- 235000013405 beer Nutrition 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000003670 easy-to-clean Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000002241 glass-ceramic Substances 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000002310 reflectometry Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/86—Investigating moving sheets
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
- G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
- G01N21/35—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light
- G01N21/3554—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light for determining moisture content
- G01N21/3559—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light for determining moisture content in sheets, e.g. in paper
-
- 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
- G01N33/346—Paper sheets
Landscapes
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (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)
- Spectroscopy & Molecular Physics (AREA)
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Medicinal Chemistry (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
- Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
Claims (10)
1. Anordning för mätning av fuktinnehället i ett arkmaterial (14, 14. med väsentliga strälningsspridande och -absorberande egenskaper, vilken anordning innefattar organ (17, 18), som avgränsar en bana för arkmaterialet och innefattar dels en strälningskälla (S), vilken är belägen pä en sida om banan och emitterar strälning inom ett spektralband, i vilket strälningen är relativt känslig för absorption i vatten, och ett annat spektralband, i vilket strälningen är relativt okänslig för absorption i vatten, medan strälningen i bäda spektralbanden är känsliga för absorption och spridning i arkmaterialet, dels en strälningsdetektor (D) invid banan för mottagning av en del av strälningen, efter det att denna träffat arkmaterialet i banan, och för omvandling av den mottagna strälningen tili en elekt-risk signal, samt organ (23, 24; 23’, 24'; 32; 51-54; 55, 56), som är sä anordnade relativt källan, detektorn och banan, att de i sam-verkan med arkmaterialet ästadkommer väsentlig och upprepad spridning 13 £16903 med reflektion av väsentligen all strälningen under dennas väg frän kallan till detektorn för att förhindra direkt överföring av nägon väsentlig strälningsmängd frän kallan tili detektorn, var-vid den elektriska signalen är proportionell mot fuktinnehället och fuktmätningen är väsentligen oberoende av fluktuationer i ark-materialets spridning eller absorption, kännetecknad därav, att de direkt överföring förhindrande organen (23, 24; 23', 24'; 32; 51-54; 55, 56) innefattar strälningsspridande material (51, 52; 55, 56) i ett sädant läge invid banan, att all straining som rör sig frän källan (S) tili detektorn (D) avskäres därav.
2. Anordning enligt patentkravet 1, kännetecknad därav, att de banan avgränsande organen (17, 18) innefattar ätskilda element (17a, 18a; 30, 31) med ytor, mellan vilka arkina teriä let (14, 14') passerar.
3. Anordning enligt patentkravet 2, kännetecknad därav, att de ätskilda elementen (17a, 18a; 30, 31) har öppningar (21, 22; 28, 29), tili vilka källan (S) och detektorn (D) är kopplade.
4. Anordning enligt patentkravet 3, kännetecknad därav, att arkmaterialet (14, 14’) är sammanhängande över ätminstone en av ytorna och täcker ätminstone en av öppningarna (21, 22; 28, 29).
5. Anordning enligt patentkravet 4, kännetecknad därav, att källan (S) och detektorn (D) är kopplade tili öppningar (21, 22) pä motsatta sidor om arkmaterialets (14, 14') bana.
6. Anordning enligt patentkravet 5, kännetecknad därav, att källans (S) öppning (22) relativt banan är förskjuten i sidled frän detektorns (D) öppning (21).
7. Anordning enligt patentkravet 5, kännetecknad därav, att källans (S) och detektorns (D) öppningar (21, 22) är inriktade mot varandra.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US28605372A | 1972-09-05 | 1972-09-05 | |
US28605372 | 1972-09-05 |
Publications (2)
Publication Number | Publication Date |
---|---|
FI56903B FI56903B (fi) | 1979-12-31 |
FI56903C true FI56903C (fi) | 1980-04-10 |
Family
ID=23096856
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FI2738/73A FI56903C (fi) | 1972-09-05 | 1973-09-03 | Anordning foer maetning av fuktinnehaollet i ett arkmaterial |
Country Status (9)
Country | Link |
---|---|
US (1) | US3793524A (sv) |
JP (1) | JPS5749854B2 (sv) |
CA (1) | CA958915A (sv) |
CH (1) | CH570618A5 (sv) |
DE (1) | DE2343869C3 (sv) |
FI (1) | FI56903C (sv) |
GB (1) | GB1420854A (sv) |
NO (1) | NO146517C (sv) |
SE (1) | SE388485B (sv) |
Families Citing this family (44)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2295419A1 (fr) * | 1974-12-21 | 1976-07-16 | Kyoto Daiichi Kagaku Kk | Dispositif de mesure de reflectance et structure de papier de test composite faisant l'objet d'une telle mesure |
US4027161A (en) * | 1976-04-05 | 1977-05-31 | Industrial Nucleonics Corporation | Minimizing wave interference effects on the measurement of thin films having specular surfaces using infrared radiation |
US4052615A (en) * | 1976-07-30 | 1977-10-04 | Industrial Nucleonics Corporation | Spherical cavity method and apparatus for measuring a sheet material property using infrared radiation |
US4306151A (en) * | 1978-02-03 | 1981-12-15 | Measurex Corporation | Method of measuring the amount of substance associated with a material in the presence of a contaminant |
US4224513A (en) * | 1978-04-06 | 1980-09-23 | Measurex Corporation | Apparatus for the on-line measurement of the opacity of a paper sheet |
GB2046432B (en) * | 1979-04-09 | 1983-05-11 | Infrared Eng Ltd | Apparatus for determining the thickness moisture content or other parameter of a film or coating |
US4323311A (en) * | 1979-05-11 | 1982-04-06 | Sira Institute Limited | Apparatus and method for detecting holes in sheet material |
US4319847A (en) * | 1979-12-05 | 1982-03-16 | Measurex Corporation | Apparatus to measure select properties of a moving sheet with improved standardization means |
US4277177A (en) * | 1979-12-05 | 1981-07-07 | Measurex Corporation | Apparatus to measure select properties of a moving sheet |
JPS6042359Y2 (ja) * | 1980-07-04 | 1985-12-26 | 横河電機株式会社 | 赤外線分析装置 |
US4406545A (en) * | 1981-05-07 | 1983-09-27 | Western Electric Company, Inc. | Methods of and apparatus for measuring surface areas |
JPS57186156A (en) * | 1981-05-13 | 1982-11-16 | Yokogawa Hokushin Electric Corp | Characteristic measuring device for sheet of body |
JPS5838036A (ja) * | 1981-08-29 | 1983-03-05 | Fujitsu Ltd | レベル検出方式 |
JPS5842657U (ja) * | 1981-09-12 | 1983-03-22 | 加茂 栄一 | 製紙における光学式坪量検出装置 |
DE3370181D1 (en) * | 1982-05-17 | 1987-04-16 | Measurex Corp | Gauge for measuring a sheet of material |
GB2127541B (en) * | 1982-09-27 | 1986-08-20 | Imp Group Plc | Monitoring sheet material |
US4577104A (en) * | 1984-01-20 | 1986-03-18 | Accuray Corporation | Measuring the percentage or fractional moisture content of paper having a variable infrared radiation scattering characteristic and containing a variable amount of a broadband infrared radiation absorber |
US4769544A (en) * | 1984-06-01 | 1988-09-06 | Measurex Corporation | System and process for measuring fiberglass |
US4766315A (en) * | 1986-07-14 | 1988-08-23 | Accuray Corporation | Apparatus and process for measuring physical parameters of sheet material |
US4733078A (en) * | 1986-08-25 | 1988-03-22 | Accuray Corporation | Measurement of moisture-stratified sheet material |
US4928013A (en) * | 1987-02-17 | 1990-05-22 | Measurex Corporation | Temperature insensitive moisture sensor |
US4823008A (en) * | 1987-11-05 | 1989-04-18 | Process Automation Business, Inc. | Apparatus and methods employing infrared absorption means to measure the moisture content of heavy grades of paper |
US4957770A (en) * | 1989-01-27 | 1990-09-18 | Measurex Corporation | Coating weight measuring and control apparatus and method |
US5049216A (en) * | 1989-05-31 | 1991-09-17 | Measurex Corporation | Warp control apparatus and method for sheet material |
US5166747A (en) * | 1990-06-01 | 1992-11-24 | Schlumberger Technology Corporation | Apparatus and method for analyzing the composition of formation fluids |
US5124552A (en) * | 1991-01-28 | 1992-06-23 | Measurex Corporation | Sensor and method for measuring web moisture with optimal temperature insensitivity over a wide basis weight range |
US5338361A (en) * | 1991-11-04 | 1994-08-16 | Measurex Corporation | Multiple coat measurement and control apparatus and method |
US5276327A (en) * | 1991-12-09 | 1994-01-04 | Measurex Corporation | Sensor and method for mesaurement of select components of a material |
DE69232697T2 (de) * | 1991-12-09 | 2003-02-06 | Measurex Corp., Cupertino | Sensor und methode zur messung ausgewählter bestandteile eines materials |
US5250811A (en) * | 1991-12-20 | 1993-10-05 | Eastman Kodak Company | Method for determining compositional information of a multilayer web |
US5821536A (en) * | 1995-06-07 | 1998-10-13 | Pettit; John W. | Solid state infrared gauge |
FI110638B (sv) * | 1998-10-06 | 2003-02-28 | Metso Paper Automation Oy | Förfarande och anordning för mätning av mängden av silikonbestrykning på rörligt underlag |
US6253604B1 (en) * | 2000-01-19 | 2001-07-03 | Impact Systems, Inc. | Scanner with interior gauging head and combined dust and drive belt |
EP1271130A1 (en) * | 2001-06-20 | 2003-01-02 | Voith Paper Patent GmbH | Scanner |
US6960769B2 (en) * | 2002-10-03 | 2005-11-01 | Abb Inc. | Infrared measuring apparatus and method for on-line application in manufacturing processes |
US8345254B2 (en) * | 2004-02-13 | 2013-01-01 | David Prystupa | Multiple pass imaging spectroscopy |
JP5614633B2 (ja) * | 2010-07-29 | 2014-10-29 | 国立大学法人九州工業大学 | 回転工具と被加工物間の間隙長さ測定方法及びシステム |
US8314388B2 (en) * | 2010-12-20 | 2012-11-20 | Honeywell Asca Inc. | Single-sided infrared sensor for thickness or weight measurement of products containing a reflective layer |
US8975586B2 (en) * | 2011-06-06 | 2015-03-10 | Honeywell Asca Inc. | Diffusing measurement window for near and mid IR multichannel sensor |
US20130148107A1 (en) * | 2011-12-07 | 2013-06-13 | Honeywell Asca Inc. | Multi-source sensor for online characterization of web products and related system and method |
FR2986519B1 (fr) | 2012-02-07 | 2014-08-29 | Solystic | Machine de tri d'objets plats sur chant de niveau sonore reduit |
DE102015102997A1 (de) | 2015-03-02 | 2016-09-08 | BST ProControl GmbH | Verfahren und Vorrichtung zum Messen von im Wesentlichen in zwei Dimensionen ausgedehntem Messgut |
US9927366B2 (en) | 2015-03-24 | 2018-03-27 | Honeywell Limited | Spectroscopic sensor for thickness or weight measurement of thin plastic films |
FI130248B (sv) | 2019-09-23 | 2023-05-08 | Valmet Automation Oy | Mätanordning och -förfarande för en pappersbana |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1848874A (en) * | 1929-09-25 | 1932-03-08 | fitz gerald | |
US2474828A (en) * | 1946-05-16 | 1949-07-05 | John R Connelly | Optical method and apparatus for measuring the accuracy of firearms |
US3080789A (en) * | 1960-07-01 | 1963-03-12 | Technicon Instr | Flow cells |
US3414354A (en) * | 1964-10-28 | 1968-12-03 | Perkin Elmer Corp | Raman spectrometers |
US3319071A (en) * | 1964-11-27 | 1967-05-09 | Gen Motors Corp | Infrared gas analysis absorption chamber having a highly reflective specular internal surface |
US3518001A (en) * | 1965-03-01 | 1970-06-30 | Beckman Instruments Inc | Radiant energy analyzer |
US3281597A (en) * | 1965-09-23 | 1966-10-25 | Greenberg Melvin | Infrared device for measuring steam quality |
US3524066A (en) * | 1966-08-22 | 1970-08-11 | Monsanto Co | Fluid measurement system having sample chamber with opposed reflecting members for causing multiple reflections |
FR1509107A (fr) * | 1966-11-29 | 1968-01-12 | Optique Soc Gen | Procédé et appareil de détection des défauts d'une matière transparente |
US3551678A (en) * | 1967-02-13 | 1970-12-29 | Sybron Corp | Paper parameter measurement using infrared radiation |
US3478210A (en) * | 1967-08-23 | 1969-11-11 | Gen Electric | Extended range infrared moisture gage standards |
US3641349A (en) * | 1969-09-29 | 1972-02-08 | Measurex Corp | Method for measuring the amount of substance associated with a base material |
GB1325753A (en) * | 1969-11-06 | 1973-08-08 | Baxter Laboratories Inc | Testing radiation absorption characteristics |
US3594087A (en) * | 1969-11-06 | 1971-07-20 | Baxter Laboratories Inc | Optical densitometer with retroreflective means |
US3675019A (en) * | 1971-03-19 | 1972-07-04 | Measurex Corp | Apparatus for measuring the amount of a substance that is associated with a base material |
-
1972
- 1972-09-05 US US00286053A patent/US3793524A/en not_active Expired - Lifetime
-
1973
- 1973-08-16 CA CA178,917A patent/CA958915A/en not_active Expired
- 1973-08-21 GB GB3949073A patent/GB1420854A/en not_active Expired
- 1973-08-31 DE DE732343869A patent/DE2343869C3/de not_active Expired
- 1973-09-03 FI FI2738/73A patent/FI56903C/fi active
- 1973-09-04 CH CH1269773A patent/CH570618A5/xx not_active IP Right Cessation
- 1973-09-04 SE SE7312013A patent/SE388485B/sv unknown
- 1973-09-04 NO NO3463/73A patent/NO146517C/no unknown
- 1973-09-05 JP JP48100110A patent/JPS5749854B2/ja not_active Expired
Also Published As
Publication number | Publication date |
---|---|
FI56903B (fi) | 1979-12-31 |
DE2343869C3 (de) | 1979-03-08 |
JPS5749854B2 (sv) | 1982-10-25 |
NO146517B (no) | 1982-07-05 |
US3793524A (en) | 1974-02-19 |
NO146517C (no) | 1982-10-13 |
SE388485B (sv) | 1976-10-04 |
JPS4966194A (sv) | 1974-06-26 |
GB1420854A (en) | 1976-01-14 |
CA958915A (en) | 1974-12-10 |
DE2343869B2 (de) | 1978-07-13 |
DE2343869A1 (de) | 1974-03-28 |
CH570618A5 (sv) | 1975-12-15 |
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