GB1193577A - Microwave Water Content Measurement. - Google Patents

Microwave Water Content Measurement.

Info

Publication number
GB1193577A
GB1193577A GB3817268A GB3817268A GB1193577A GB 1193577 A GB1193577 A GB 1193577A GB 3817268 A GB3817268 A GB 3817268A GB 3817268 A GB3817268 A GB 3817268A GB 1193577 A GB1193577 A GB 1193577A
Authority
GB
United Kingdom
Prior art keywords
micro
layer
water content
amplitude
wave
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
GB3817268A
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.)
POLSKA AKADEMIA NAUK ZAKLAD
Original Assignee
POLSKA AKADEMIA NAUK ZAKLAD
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
Priority claimed from PL122136A external-priority patent/PL61790B1/pl
Application filed by POLSKA AKADEMIA NAUK ZAKLAD filed Critical POLSKA AKADEMIA NAUK ZAKLAD
Publication of GB1193577A publication Critical patent/GB1193577A/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 Analyzing Materials By The Use Of Electric Means (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)

Abstract

1,193,577. Measuring water content, using micro-wave absorption. POLSKA AKADEMIA NAUK ZAKLAD DOSWIADCZALNY BUDOWY APARATURY NAUKOWEJ "UNIPAN". Aug. 9, 1968 [Aug.10, 1967], No.38172/68. Heading G1N. Apparatus for measuring the water content of a layer 5 of a solid or liquid substance comprises a micro-wave generator 1 connected to a magic T bridge 2, one side arm of which is connected to a micro-wave aerial 4 for emitting and receiving micro-waves which pass through the test layer 5 and are reflected by a metal reflector 6, spaced from the layer 5 by an odd multiple of quarter wavelengths, the other side arm being connected to means 3 for providing a reference reflected wave of adjustable phase and amplitude. The output from the bridge 2 is passed through a calibrated variable attenuator 7, detected by a diode (9), amplified by linear and logarithmic amplifiers (10, 11) to produce a signal of amplitude linearly dependent on the water content of the layer 5 which signal is fed to an indicator (13) and recorder (14) and to an alarm signalling circuit (16, 17) which receives a comparison signal from a low frequency sinewave generator (15) which amplitude modulates the micro-wave generator (1). An electromechanical control system may be provided for controlling drying or humidifying of the test layer 5 or for adjusting the phase and amplitude of the reference signal from means 3.
GB3817268A 1967-08-10 1968-08-09 Microwave Water Content Measurement. Expired GB1193577A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PL122136A PL61790B1 (en) 1967-08-10

Publications (1)

Publication Number Publication Date
GB1193577A true GB1193577A (en) 1970-06-03

Family

ID=19949715

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3817268A Expired GB1193577A (en) 1967-08-10 1968-08-09 Microwave Water Content Measurement.

Country Status (3)

Country Link
DE (1) DE1798030A1 (en)
FR (1) FR1583536A (en)
GB (1) GB1193577A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4566321A (en) * 1985-01-18 1986-01-28 Transamerica Delaval Inc. Microwave tank-contents level measuring assembly with lens-obturated wall-opening
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
WO2017141024A3 (en) * 2016-02-17 2018-03-22 Orsus Medical Limited Apparatus for measuring the concentration of target substances in blood
CN115980298A (en) * 2023-03-20 2023-04-18 山东思睿环境设备科技有限公司 Multi-parameter-based adaptive water quality detection and analysis method and device

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4566321A (en) * 1985-01-18 1986-01-28 Transamerica Delaval Inc. Microwave tank-contents level measuring assembly with lens-obturated wall-opening
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
WO2017141024A3 (en) * 2016-02-17 2018-03-22 Orsus Medical Limited Apparatus for measuring the concentration of target substances in blood
CN108882849A (en) * 2016-02-17 2018-11-23 欧洛萨斯医疗有限公司 The device of target substance concentration in a kind of measurement blood
RU2745294C2 (en) * 2016-02-17 2021-03-23 Афон Текнолоджи Лтд Method and device for measuring target substance concentration in blood
AU2017219994B2 (en) * 2016-02-17 2021-11-04 Afon Technology Limited Apparatus for measuring the concentration of target substances in blood
US11253174B2 (en) 2016-02-17 2022-02-22 Afon Technology Ltd Apparatus for measuring the concentration of target substances in blood
CN115980298A (en) * 2023-03-20 2023-04-18 山东思睿环境设备科技有限公司 Multi-parameter-based adaptive water quality detection and analysis method and device
CN115980298B (en) * 2023-03-20 2023-07-21 山东思睿环境设备科技有限公司 Multi-parameter adaptive water quality detection and analysis method and device

Also Published As

Publication number Publication date
FR1583536A (en) 1969-11-07
DE1798030A1 (en) 1971-11-25

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees