GB1052250A - - Google Patents

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Publication number
GB1052250A
GB1052250A GB1052250DA GB1052250A GB 1052250 A GB1052250 A GB 1052250A GB 1052250D A GB1052250D A GB 1052250DA GB 1052250 A GB1052250 A GB 1052250A
Authority
GB
United Kingdom
Prior art keywords
web
measuring
moisture content
receiver
mahlo
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
Publication date
Publication of GB1052250A publication Critical patent/GB1052250A/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

Abstract

1, 052,250. Measuring moisture content. H. MAHLO. Dec. 31, 1964 [Jan. 8, 1964] No.52989/64. Heading G1N. The moisture content of a moving web 8 is determined by projecting microwaves at the web from an emitter 7 and measuring the reflected energy with a receiver 10 disposed at the same angle to the web. The oscillator is a reflex Klystron having a free space wavelength of 3À2 cm, and the apparatus may comprise a magic T. Absorber material 9 is placed behind the web and round the transmitter and receiver openings. The measuring signal may be used to control the pressure of rollers in a squeezing machine.
GB1052250D Expired GB1052250A (en)

Publications (1)

Publication Number Publication Date
GB1052250A true GB1052250A (en) 1900-01-01

Family

ID=1756891

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1052250D Expired GB1052250A (en)

Country Status (1)

Country Link
GB (1) GB1052250A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3534260A (en) * 1967-04-26 1970-10-13 Charles W E Walker Method and apparatus for measuring moisture content in sheet materials using a frequency modulation free microwave energy beam
US3786330A (en) * 1972-04-28 1974-01-15 Nippendenso Co Ltd Automatic windshield wiping apparatus by using microwaves for vehicles
US4156843A (en) * 1978-03-13 1979-05-29 Strandberg Engineering Laboratories, Inc. Microwave moisture indicator and control
US4399403A (en) * 1981-09-22 1983-08-16 Strandberg Engineering Laboratories, Inc. Microwave moisture measuring, indicating and control apparatus
FR2529340A1 (en) * 1982-06-25 1983-12-30 Martin Sa Quantitative measurement of aq. surface film on substrate - by comparison of transmitted or reflected strengths of polarised microwave beams
NL8401328A (en) * 1983-04-26 1984-11-16 Yokogawa Hokushin Electric MICROWAVE MOISTURE SENSOR.

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3534260A (en) * 1967-04-26 1970-10-13 Charles W E Walker Method and apparatus for measuring moisture content in sheet materials using a frequency modulation free microwave energy beam
US3786330A (en) * 1972-04-28 1974-01-15 Nippendenso Co Ltd Automatic windshield wiping apparatus by using microwaves for vehicles
US4156843A (en) * 1978-03-13 1979-05-29 Strandberg Engineering Laboratories, Inc. Microwave moisture indicator and control
US4399403A (en) * 1981-09-22 1983-08-16 Strandberg Engineering Laboratories, Inc. Microwave moisture measuring, indicating and control apparatus
FR2529340A1 (en) * 1982-06-25 1983-12-30 Martin Sa Quantitative measurement of aq. surface film on substrate - by comparison of transmitted or reflected strengths of polarised microwave beams
NL8401328A (en) * 1983-04-26 1984-11-16 Yokogawa Hokushin Electric MICROWAVE MOISTURE SENSOR.

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