GB1344550A - Non-destructive electromagnetic energy testing of web material - Google Patents

Non-destructive electromagnetic energy testing of web material

Info

Publication number
GB1344550A
GB1344550A GB4502372A GB4502372A GB1344550A GB 1344550 A GB1344550 A GB 1344550A GB 4502372 A GB4502372 A GB 4502372A GB 4502372 A GB4502372 A GB 4502372A GB 1344550 A GB1344550 A GB 1344550A
Authority
GB
United Kingdom
Prior art keywords
circuit
lines
transmission line
test
sampling
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
GB4502372A
Other languages
English (en)
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.)
Unisys Corp
Original Assignee
Sperry Rand Corp
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 Sperry Rand Corp filed Critical Sperry Rand Corp
Publication of GB1344550A publication Critical patent/GB1344550A/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
    • G01N22/02—Investigating the presence of flaws

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 Analyzing Materials By The Use Of Magnetic Means (AREA)
GB4502372A 1971-10-04 1972-09-29 Non-destructive electromagnetic energy testing of web material Expired GB1344550A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US18621371A 1971-10-04 1971-10-04

Publications (1)

Publication Number Publication Date
GB1344550A true GB1344550A (en) 1974-01-23

Family

ID=22684087

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4502372A Expired GB1344550A (en) 1971-10-04 1972-09-29 Non-destructive electromagnetic energy testing of web material

Country Status (6)

Country Link
US (1) US3715667A (enExample)
JP (1) JPS4845279A (enExample)
CA (1) CA967241A (enExample)
DE (1) DE2248684A1 (enExample)
FR (1) FR2155966A1 (enExample)
GB (1) GB1344550A (enExample)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105424727A (zh) * 2014-09-12 2016-03-23 航天信息股份有限公司 利用微波在线检验粮食水分含量是否超标的方法和装置

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3815019A (en) * 1972-12-19 1974-06-04 Electronic Ass Of Ca Ltd Microwave low moisture measuring apparatus
US4123703A (en) * 1977-09-02 1978-10-31 Sri International Microwave method of and apparatus for flaw detection
JPS53131342U (enExample) * 1978-03-27 1978-10-18
US4626773A (en) * 1984-10-26 1986-12-02 Exxon Production Research Co. Method and means for determining rock properties using time-domain dielectric spectroscopy
US4755742A (en) * 1986-04-30 1988-07-05 Tektronix, Inc. Dual channel time domain reflectometer
US4866371A (en) * 1986-09-15 1989-09-12 Chevron Research Company Sample accommodator and method for the measurement of dielectric properties
EP0321808A1 (de) * 1987-12-23 1989-06-28 BBC Brown Boveri AG Verfahren zum Messen eines Wellenwiderstandes und einer Ausbreitungskonstante eines Zweitors
US5157338A (en) * 1991-01-22 1992-10-20 James M. Mothersbaugh Antenna VSWR indicator
US5185579A (en) * 1991-07-31 1993-02-09 Hughes Aircraft Company Detection and ranging of material flaws using microwave transmission line reflectometry
US5376889A (en) * 1991-10-10 1994-12-27 Hughes Aircraft Company System and method for detecting and locating flaws on or beneath a surface
US5502392A (en) * 1992-04-30 1996-03-26 International Business Machines Corporation Methods for the measurement of the frequency dependent complex propagation matrix, impedance matrix and admittance matrix of coupled transmission lines
US5488306A (en) * 1994-05-31 1996-01-30 International Business Machines Corp. Open and short fault detector for a differential interface
US5554935A (en) * 1995-04-03 1996-09-10 The United States Of America, As Represented By The Secretary Of Agriculture Mass or weight determination of arbitrarily-shaped dielectric objects by microwave resonator measurements
US6320401B1 (en) * 1998-06-15 2001-11-20 Advantest Corporation Substrate inspection using the propagation characteristics of RF electromagnetic waves
FI991548L (fi) * 1999-07-06 2001-04-05 Neles Field Controls Oy Menetelmä rainan sakeuden mittaamiseksi ja mittalaite
JP5917218B2 (ja) * 2012-03-19 2016-05-11 八光オートメーション株式会社 内部欠陥検査装置及び内部欠陥の検査方法
US10101288B2 (en) * 2014-08-28 2018-10-16 William N. Carr Wireless impedance spectrometer
US9689822B2 (en) * 2015-01-22 2017-06-27 Ut-Battelle, Llc Characterization of dielectric materials
US10551334B1 (en) * 2018-08-09 2020-02-04 William N. Carr Impedance spectrometer with metamaterial radiative filter
CN108534655B (zh) * 2018-03-22 2024-01-09 中国南方电网有限责任公司超高压输电公司曲靖局 一种架空输电线路导地线覆冰测量系统及方法

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105424727A (zh) * 2014-09-12 2016-03-23 航天信息股份有限公司 利用微波在线检验粮食水分含量是否超标的方法和装置

Also Published As

Publication number Publication date
FR2155966A1 (enExample) 1973-05-25
CA967241A (en) 1975-05-06
DE2248684A1 (de) 1973-04-12
JPS4845279A (enExample) 1973-06-28
US3715667A (en) 1973-02-06

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees