GB2272777A - Measuring dielectric properties of materials - Google Patents

Measuring dielectric properties of materials

Info

Publication number
GB2272777A
GB2272777A GB9325689A GB9325689A GB2272777A GB 2272777 A GB2272777 A GB 2272777A GB 9325689 A GB9325689 A GB 9325689A GB 9325689 A GB9325689 A GB 9325689A GB 2272777 A GB2272777 A GB 2272777A
Authority
GB
United Kingdom
Prior art keywords
conductivity
adjacent
contact
materials
dielectric properties
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.)
Withdrawn
Application number
GB9325689A
Other versions
GB9325689D0 (en
Inventor
Alan William Preece
Reginald Harry Johnson
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.)
University of Bristol
Original Assignee
University of Bristol
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 University of Bristol filed Critical University of Bristol
Publication of GB9325689D0 publication Critical patent/GB9325689D0/en
Publication of GB2272777A publication Critical patent/GB2272777A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R27/00—Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
    • G01R27/02—Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant
    • G01R27/26—Measuring inductance or capacitance; Measuring quality factor, e.g. by using the resonance method; Measuring loss factor; Measuring dielectric constants ; Measuring impedance or related variables
    • G01R27/2617—Measuring dielectric properties, e.g. constants
    • G01R27/2623—Measuring-systems or electronic circuits

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Resistance Or Impedance (AREA)

Abstract

Apparatus for measuring the complex permittivity and conductivity, or a change in the complex permittivity and conductivity, of a dielectric material, comprises: a structure (1) which can be made to resonate at a radio or microwave frequency when in contact with or adjacent a dielectric material first means (4), for providing a first indication, related to a change in resonant frequency of said structure when the latter is in contact with or adjacent said material as compared with a reference resonant frequency when not in contact with or adjacent said material; and second means (5, 6, 7, 8), for providing a second indication, related to the return loss when said structure is in contact with or adjacent said material, whereby the complex permittivity and conductivity, or a change in the complex permittivity and conductivity of said material can be calculated using said first and second indications.
GB9325689A 1991-06-28 1993-12-15 Measuring dielectric properties of materials Withdrawn GB2272777A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB919114044A GB9114044D0 (en) 1991-06-28 1991-06-28 Measuring dielectric properties of materials
PCT/GB1992/001160 WO1993000591A1 (en) 1991-06-28 1992-06-26 Measuring dielectric properties of materials

Publications (2)

Publication Number Publication Date
GB9325689D0 GB9325689D0 (en) 1994-03-02
GB2272777A true GB2272777A (en) 1994-05-25

Family

ID=10697527

Family Applications (2)

Application Number Title Priority Date Filing Date
GB919114044A Pending GB9114044D0 (en) 1991-06-28 1991-06-28 Measuring dielectric properties of materials
GB9325689A Withdrawn GB2272777A (en) 1991-06-28 1993-12-15 Measuring dielectric properties of materials

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB919114044A Pending GB9114044D0 (en) 1991-06-28 1991-06-28 Measuring dielectric properties of materials

Country Status (4)

Country Link
EP (1) EP0591335A1 (en)
AU (1) AU2195692A (en)
GB (2) GB9114044D0 (en)
WO (1) WO1993000591A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2357586A (en) * 1999-12-20 2001-06-27 Murata Manufacturing Co Method and Appararus for Measuring Insulation Resistance

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012531585A (en) * 2009-06-26 2012-12-10 シュレイダー エレクトロニクス リミテッド Liquid level and quality sensing system and method using EMF wave propagation
GB201211894D0 (en) * 2012-07-04 2012-08-15 Sparq Wireless Solutions Pte Ltd Sensing methods and apparatus
NO20140185A1 (en) * 2014-02-14 2015-08-17 Fmc Kongsberg Subsea As System and method for multiphase flow measurements
CN106324360B (en) * 2015-06-19 2023-10-31 深圳光启高等理工研究院 Measurement system and measurement method for dielectric parameters
CN114113789B (en) * 2021-11-25 2023-07-21 天津大学 Device and method for measuring conductivity of metal film at high frequency

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2221213A1 (en) * 1972-04-29 1973-11-15 Licentia Gmbh PROCEDURE FOR DETERMINING THE DIELECTRICITY CONSTANTS OF A SAMPLE
DE2255861B2 (en) * 1971-11-16 1980-12-11 Fisons Ltd., London Device for detecting the presence of dielectric properties or for detecting a change in dielectric properties of bodies using a high-frequency voltage source

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2255861B2 (en) * 1971-11-16 1980-12-11 Fisons Ltd., London Device for detecting the presence of dielectric properties or for detecting a change in dielectric properties of bodies using a high-frequency voltage source
DE2221213A1 (en) * 1972-04-29 1973-11-15 Licentia Gmbh PROCEDURE FOR DETERMINING THE DIELECTRICITY CONSTANTS OF A SAMPLE

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2357586A (en) * 1999-12-20 2001-06-27 Murata Manufacturing Co Method and Appararus for Measuring Insulation Resistance
GB2357586B (en) * 1999-12-20 2002-07-24 Murata Manufacturing Co Method and apparatus for measuring insulation resistance
US6518777B2 (en) 1999-12-20 2003-02-11 Murata Manufacturing Co., Ltd. Method and apparatus for measuring insulation resistance

Also Published As

Publication number Publication date
GB9114044D0 (en) 1991-08-14
AU2195692A (en) 1993-01-25
EP0591335A1 (en) 1994-04-13
WO1993000591A1 (en) 1993-01-07
GB9325689D0 (en) 1994-03-02

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)