GB883828A - Improvements in or relating to methods and apparatus for sensing a constituent of a material - Google Patents

Improvements in or relating to methods and apparatus for sensing a constituent of a material

Info

Publication number
GB883828A
GB883828A GB6427/58A GB642758A GB883828A GB 883828 A GB883828 A GB 883828A GB 6427/58 A GB6427/58 A GB 6427/58A GB 642758 A GB642758 A GB 642758A GB 883828 A GB883828 A GB 883828A
Authority
GB
United Kingdom
Prior art keywords
energy
detector
moisture content
fed via
determining
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
GB6427/58A
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.)
Beloit Iron Works Inc
Original Assignee
Beloit Iron Works Inc
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 Beloit Iron Works Inc filed Critical Beloit Iron Works Inc
Publication of GB883828A publication Critical patent/GB883828A/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
    • G01N22/00—Investigating or analysing materials by the use of microwaves or radio waves, i.e. electromagnetic waves with a wavelength of one millimetre or more
    • G01N22/04—Investigating moisture content

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)

Abstract

883,828. Determining moisture content. BELOIT IRON WORKS. Feb. 27, 1958 [March 6, 1957], No. 6427/58. Class 37. Apparatus for determining the moisture content of, e.g. a travelling paper web 6, measuring its absorption of microwave electromagnetic energy comprises a generator 30 feeding through two directional couplers 156, 157 to a radiator 150 which projects the energy through a limited area of the travelling web 10 to a reflector 152, the reflected energy being fed via coupler 157 to a detector 74 and the transmitted energy being fed via coupler 156 to a detector 73, for comparison at 78. Preferred wavelengths and distances are given.
GB6427/58A 1957-03-06 1958-02-27 Improvements in or relating to methods and apparatus for sensing a constituent of a material Expired GB883828A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US883828XA 1957-03-06 1957-03-06

Publications (1)

Publication Number Publication Date
GB883828A true GB883828A (en) 1961-12-06

Family

ID=22211053

Family Applications (1)

Application Number Title Priority Date Filing Date
GB6427/58A Expired GB883828A (en) 1957-03-06 1958-02-27 Improvements in or relating to methods and apparatus for sensing a constituent of a material

Country Status (1)

Country Link
GB (1) GB883828A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4361801A (en) * 1979-07-14 1982-11-30 U.S. Philips Corporation Microwave method for measuring the relative moisture content of an object
US4757745A (en) * 1987-02-26 1988-07-19 Vickers, Incorporated Microwave antenna and dielectric property change frequency compensation system in electrohydraulic servo with piston position control
EP2101170A1 (en) * 2008-03-11 2009-09-16 Nederlandse Centrale Organisatie Voor Toegepast Natuurwetenschappelijk Onderzoek TNO Method, system and computer program for contactless measuring a moisture percentage
FR2974415A1 (en) * 2011-04-21 2012-10-26 Imiwave Device for contactless measurement of moisture content of e.g. material, has detecting units connected to processing unit, and antenna, where sample material to be analyzed is placed under antenna at distance of radiated wavelength
ITFI20130266A1 (en) * 2013-11-05 2015-05-06 Advanced Microwave Engineering S R L ASSOCIATED DEVICE AND ASSOCIATED METHOD FOR THE DETECTION AND MEASUREMENT OF THE PHYSICO-CHEMICAL CHARACTERISTICS OF MATERIALS IN THE FORM OF SHEETS, FILMS, FABRICS, LAYERS DEPOSITED ON A SUPPORT OR SIMILAR.

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4361801A (en) * 1979-07-14 1982-11-30 U.S. Philips Corporation Microwave method for measuring the relative moisture content of an object
US4757745A (en) * 1987-02-26 1988-07-19 Vickers, Incorporated Microwave antenna and dielectric property change frequency compensation system in electrohydraulic servo with piston position control
EP2101170A1 (en) * 2008-03-11 2009-09-16 Nederlandse Centrale Organisatie Voor Toegepast Natuurwetenschappelijk Onderzoek TNO Method, system and computer program for contactless measuring a moisture percentage
WO2009113857A1 (en) * 2008-03-11 2009-09-17 Nederlandse Organisatie Voor Toegepast-Natuurwetenschappelijk Onderzoek Tno Method, system and computer program for contactless measuring a moisture percentage
FR2974415A1 (en) * 2011-04-21 2012-10-26 Imiwave Device for contactless measurement of moisture content of e.g. material, has detecting units connected to processing unit, and antenna, where sample material to be analyzed is placed under antenna at distance of radiated wavelength
ITFI20130266A1 (en) * 2013-11-05 2015-05-06 Advanced Microwave Engineering S R L ASSOCIATED DEVICE AND ASSOCIATED METHOD FOR THE DETECTION AND MEASUREMENT OF THE PHYSICO-CHEMICAL CHARACTERISTICS OF MATERIALS IN THE FORM OF SHEETS, FILMS, FABRICS, LAYERS DEPOSITED ON A SUPPORT OR SIMILAR.
WO2015068113A1 (en) * 2013-11-05 2015-05-14 Advanced Microwave Engineering S.R.L. Device and method for the detection and measurement of the physical-chemical features of materials in the form of sheets, films, fabrics, layers deposited on a support or the like

Similar Documents

Publication Publication Date Title
SE8005112L (en) MICROWAVE PROCEDURE FOR SEATING A FORMAL RELATIVE MOISTURE CONTENT
ATE524T1 (en) DEVICE FOR DRYING WEB-FORM MATERIAL.
GB905698A (en) Improvements in or relating to apparatus for sensing the effect of a microwave-affecting constituent of a material
GB883828A (en) Improvements in or relating to methods and apparatus for sensing a constituent of a material
SE8404100D0 (en) TEMPLATE INDICATION DEVICE
US3678594A (en) Paper making system and apparatus
GB887556A (en) Improvements in or relating to moisture content determination
GB1516422A (en) Apparatus and method for monitoring moisture gradient in a moving web
GB1439375A (en) Microwave transmission arrangement for measuring water content
SU832430A1 (en) Device for measuring moisture-content and thickness of gypsocarton sheets
GB2013881A (en) A method of measuring the amount of substance associated with a material in the presence of a contaminant
GB1231443A (en)
JPS52107886A (en) Tension detector for steel strip
GB1248615A (en) Microwave moisture sensing apparatus
JPS5235660A (en) Device for measuring thickness or like of dielectric material
CA703660A (en) Pintle wires of mechanical seams for belts, paper machine dryer felts and the like
FI36242A (en) A method of measuring the directional distribution of fibers in a paper web or similar fibrous material and an apparatus for implementing the method
AU202043B2 (en) Drying ofthe paper web in papermaking machines
GB929014A (en) Improvements in or relating to the measurement of the moisture content of a web of material, particularly fibrous material
AU225754A (en) Drying ofthe paper web in papermaking machines
CA647621A (en) Measurement of the moisture content of a web of material, particularly fibrous material
FR68000E (en) Improvements in the drying of fabrics, paper, cardboard and other strip materials
AU216690B2 (en) Apparatus for continuous measurement of basis weight of paper, board or like fibrous material
GB737266A (en) Apparatus for discharging steam in apparatus for corrugating paper or like material
AU904155A (en) Apparatus for continuous measurement of basis weight of paper, board or like fibrous material