GB597800A - Improvements in apparatus for determining the dielectric properties of granular or powdery materials - Google Patents

Improvements in apparatus for determining the dielectric properties of granular or powdery materials

Info

Publication number
GB597800A
GB597800A GB2201045A GB2201045A GB597800A GB 597800 A GB597800 A GB 597800A GB 2201045 A GB2201045 A GB 2201045A GB 2201045 A GB2201045 A GB 2201045A GB 597800 A GB597800 A GB 597800A
Authority
GB
United Kingdom
Prior art keywords
condenser
granular
determining
dielectric properties
constant
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
GB2201045A
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.)
Marconi Instruments Ltd
Original Assignee
Marconi Instruments Ltd
Filing date
Publication date
Application filed by Marconi Instruments Ltd filed Critical Marconi Instruments Ltd
Publication of GB597800A publication Critical patent/GB597800A/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
    • G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
    • G01N27/02—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance
    • G01N27/22—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating capacitance
    • G01N27/223—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating capacitance for determining moisture content, e.g. humidity

Abstract

597,800. Feeding materials from hoppers. MARCONI INSTRUMENTS, Ltd., and BROCKELSBY, C. F. Aug. 27, 1945, No. 22010. [Class 78(i)] [Also in Groups XXXVI and XXXVIII] Powdered or granular material is fed from a hopper-H on to a pivotal deflector vane V which diverts a constant flow into and through. a condenser-container C for the purpose of measuring the dielectric constant and hence the moisture content of the material. The condenser is carried by a beam B fulcrumed at F and counterpoised by a weight W, spring, electromagnet or other means provided with damping means D such as a dashpot or eddy-current-brake. Any deviation of the average material mass in the condenser rocks the deflector vane V through an adjustable link L and arm A in the corrective sense to maintain constant the flow or time average of the material mass in the condenser. Specifications 555,211 and 567,161, [both in Group XXXVI], are referred to.
GB2201045A 1945-08-27 Improvements in apparatus for determining the dielectric properties of granular or powdery materials Expired GB597800A (en)

Publications (1)

Publication Number Publication Date
GB597800A true GB597800A (en) 1948-02-03

Family

ID=1736655

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2201045A Expired GB597800A (en) 1945-08-27 Improvements in apparatus for determining the dielectric properties of granular or powdery materials

Country Status (1)

Country Link
GB (1) GB597800A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2665409A (en) * 1950-08-30 1954-01-05 Quaker Oats Co Method and apparatus for determining moisture content or other variables in organic materials
US2696588A (en) * 1950-07-18 1954-12-07 Heyl & Patterson Surface moisture detection system
DE1121378B (en) * 1956-01-26 1962-01-04 Henkel & Cie Gmbh Process for the continuous determination of the water content in powdery and grainy bulk goods by measuring the dielectric constant
US3068398A (en) * 1953-11-13 1962-12-11 Varian Associates Gyromagnetic resonance method and apparatus
EP0043137A1 (en) * 1980-06-30 1982-01-06 Bühler AG Method and apparatus for continuously measuring the moisture content of granular food products
WO1986004417A1 (en) * 1980-06-30 1986-07-31 Hans Oetiker Method and device for the determination of characteristic values, particularly of grain
GB2184853A (en) * 1985-12-19 1987-07-01 Csr Ltd Flow rate determination

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2696588A (en) * 1950-07-18 1954-12-07 Heyl & Patterson Surface moisture detection system
US2665409A (en) * 1950-08-30 1954-01-05 Quaker Oats Co Method and apparatus for determining moisture content or other variables in organic materials
US3068398A (en) * 1953-11-13 1962-12-11 Varian Associates Gyromagnetic resonance method and apparatus
DE1121378B (en) * 1956-01-26 1962-01-04 Henkel & Cie Gmbh Process for the continuous determination of the water content in powdery and grainy bulk goods by measuring the dielectric constant
EP0043137A1 (en) * 1980-06-30 1982-01-06 Bühler AG Method and apparatus for continuously measuring the moisture content of granular food products
WO1982000202A1 (en) * 1980-06-30 1982-01-21 Ag Geb Buehler Method and device for the continuous determination of humidity in granular food products
WO1986004417A1 (en) * 1980-06-30 1986-07-31 Hans Oetiker Method and device for the determination of characteristic values, particularly of grain
GB2184853A (en) * 1985-12-19 1987-07-01 Csr Ltd Flow rate determination
GB2184853B (en) * 1985-12-19 1990-02-07 Csr Ltd Flow rate determination

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