GB2302408B - Capacitance measurement - Google Patents

Capacitance measurement

Info

Publication number
GB2302408B
GB2302408B GB9612642A GB9612642A GB2302408B GB 2302408 B GB2302408 B GB 2302408B GB 9612642 A GB9612642 A GB 9612642A GB 9612642 A GB9612642 A GB 9612642A GB 2302408 B GB2302408 B GB 2302408B
Authority
GB
United Kingdom
Prior art keywords
capacitance measurement
capacitance
measurement
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 - Fee Related
Application number
GB9612642A
Other versions
GB2302408A (en
GB9612642D0 (en
Inventor
Wuqiang Yang
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.)
PROCESS TOMOGRAPHY Ltd
Original Assignee
PROCESS TOMOGRAPHY Ltd
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 GBGB9512322.0A external-priority patent/GB9512322D0/en
Application filed by PROCESS TOMOGRAPHY Ltd filed Critical PROCESS TOMOGRAPHY Ltd
Priority to GB9612642A priority Critical patent/GB2302408B/en
Publication of GB9612642D0 publication Critical patent/GB9612642D0/en
Publication of GB2302408A publication Critical patent/GB2302408A/en
Application granted granted Critical
Publication of GB2302408B publication Critical patent/GB2302408B/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • G01N27/24—Investigating the presence of flaws

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Measurement Of Resistance Or Impedance (AREA)
GB9612642A 1995-06-16 1996-06-17 Capacitance measurement Expired - Fee Related GB2302408B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9612642A GB2302408B (en) 1995-06-16 1996-06-17 Capacitance measurement

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB9512322.0A GB9512322D0 (en) 1995-06-16 1995-06-16 A flexible field excitation and measurement technique for electrical capacitance tomography systems
GB9612642A GB2302408B (en) 1995-06-16 1996-06-17 Capacitance measurement

Publications (3)

Publication Number Publication Date
GB9612642D0 GB9612642D0 (en) 1996-08-21
GB2302408A GB2302408A (en) 1997-01-15
GB2302408B true GB2302408B (en) 1999-07-07

Family

ID=26307228

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9612642A Expired - Fee Related GB2302408B (en) 1995-06-16 1996-06-17 Capacitance measurement

Country Status (1)

Country Link
GB (1) GB2302408B (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2364777B (en) * 2000-07-12 2004-10-13 Sondex Ltd An improved capacitance measurement probe
US6577700B1 (en) * 2001-06-22 2003-06-10 Liang-Shih Fan Neural network based multi-criteria optimization image reconstruction technique for imaging two- and three-phase flow systems using electrical capacitance tomography
EP2031381A1 (en) * 2007-08-31 2009-03-04 Tomoflow Ltd. Method and apparatus for determining moisture or density of a material
CN102269727A (en) * 2011-05-03 2011-12-07 上海海事大学 Method for measuring capacitive humidity sensor
US9259168B2 (en) 2011-10-04 2016-02-16 The Ohio State University Adaptive electrical capacitance volume tomography
CN104655692B (en) * 2013-11-19 2017-03-01 中国科学院工程热物理研究所 Capacitance tomography sensor
CN110470704B (en) * 2019-08-27 2020-09-29 浙江大学 Capacitance tomography sensor applied to low-temperature fluid two-phase flow phase distribution measurement

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4259632A (en) * 1977-11-18 1981-03-31 Ot-Tehdas Oy Continuous action capacitive moisture measuring apparatus
GB2147106A (en) * 1983-09-19 1985-05-01 Robert Garnett Green Method and apparatus for the measurement of the flow of particulate materials
GB2175397A (en) * 1983-11-22 1986-11-26 Honda Motor Co Ltd Devices for detecting objects
US4711244A (en) * 1981-12-17 1987-12-08 American Cyanamid Company Digital moisture dermatometer
US5132631A (en) * 1990-03-21 1992-07-21 A. E., Inc. Glass surface coating detector
US5378993A (en) * 1993-12-20 1995-01-03 Premark Feg Corporation Liquid sensing circuit

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4259632A (en) * 1977-11-18 1981-03-31 Ot-Tehdas Oy Continuous action capacitive moisture measuring apparatus
US4711244A (en) * 1981-12-17 1987-12-08 American Cyanamid Company Digital moisture dermatometer
GB2147106A (en) * 1983-09-19 1985-05-01 Robert Garnett Green Method and apparatus for the measurement of the flow of particulate materials
GB2175397A (en) * 1983-11-22 1986-11-26 Honda Motor Co Ltd Devices for detecting objects
US5132631A (en) * 1990-03-21 1992-07-21 A. E., Inc. Glass surface coating detector
US5378993A (en) * 1993-12-20 1995-01-03 Premark Feg Corporation Liquid sensing circuit

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
3RD INT. CONF. ON MULTI-PHASE FLOW 18-20 MAY 1987,PP.265-275S.M. HUANG, R.G. GREEN ET AL *

Also Published As

Publication number Publication date
GB2302408A (en) 1997-01-15
GB9612642D0 (en) 1996-08-21

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20050617