GB2023313A - Improvements relating to microwave heating - Google Patents

Improvements relating to microwave heating

Info

Publication number
GB2023313A
GB2023313A GB7920371A GB7920371A GB2023313A GB 2023313 A GB2023313 A GB 2023313A GB 7920371 A GB7920371 A GB 7920371A GB 7920371 A GB7920371 A GB 7920371A GB 2023313 A GB2023313 A GB 2023313A
Authority
GB
United Kingdom
Prior art keywords
microwave
waveguide
energy
reflected
source
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.)
Granted
Application number
GB7920371A
Other versions
GB2023313B (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.)
KraussMaffei Extrusion GmbH
Original Assignee
Hermann Berstorff Maschinenbau GmbH
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 Hermann Berstorff Maschinenbau GmbH filed Critical Hermann Berstorff Maschinenbau GmbH
Publication of GB2023313A publication Critical patent/GB2023313A/en
Application granted granted Critical
Publication of GB2023313B publication Critical patent/GB2023313B/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B6/00—Heating by electric, magnetic or electromagnetic fields
    • H05B6/64—Heating using microwaves
    • H05B6/78—Arrangements for continuous movement of material
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B6/00—Heating by electric, magnetic or electromagnetic fields
    • H05B6/64—Heating using microwaves
    • H05B6/66—Circuits
    • H05B6/666—Safety circuits

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Constitution Of High-Frequency Heating (AREA)
  • Control Of High-Frequency Heating Circuits (AREA)
  • Heating, Cooling, Or Curing Plastics Or The Like In General (AREA)

Abstract

In a method and apparatus for matching a microwave heater to reduce the microwave energy reflected by the load, microwave energy from a microwave source 6, 7 is supplied to a treatment chamber 3 by a hollow waveguide 8, 9 of square or rectangular section, a directional coupler 16, 17 in the waveguide 8, 9 prevents reflected energy returning to the source 6, 7 and directs it to an absorption means, a detector 18 being provided at the absorption means to measure the reflected energy. The detector output, via control means 19 to 24, controls motors M1 to 3 to operate tuning pins 13, 14, 15 in the waveguide 8, 9, the motors M1 to 3 having different operating speeds. <IMAGE>
GB7920371A 1978-06-14 1979-06-12 Microwave heating Expired GB2023313B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19782825944 DE2825944C3 (en) 1978-06-14 1978-06-14 Method and device for dielectric heating by means of microwave energy

Publications (2)

Publication Number Publication Date
GB2023313A true GB2023313A (en) 1979-12-28
GB2023313B GB2023313B (en) 1983-01-19

Family

ID=6041707

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7920371A Expired GB2023313B (en) 1978-06-14 1979-06-12 Microwave heating

Country Status (6)

Country Link
JP (1) JPS5533785A (en)
CA (1) CA1118845A (en)
DE (1) DE2825944C3 (en)
FR (1) FR2434544A1 (en)
GB (1) GB2023313B (en)
SE (1) SE438234B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0088175A1 (en) * 1982-03-08 1983-09-14 Douglas Powell Mahan Tumble drying apparatus
US10603617B2 (en) 2015-10-30 2020-03-31 Fujitsu Limited Microwave irradiation apparatus and exhaust gas purification apparatus

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56159085A (en) * 1980-05-13 1981-12-08 Matsushita Electric Ind Co Ltd High frequency heater
JPS56159086A (en) * 1980-05-13 1981-12-08 Matsushita Electric Ind Co Ltd High frequency heater
JPS5723494A (en) * 1980-07-18 1982-02-06 Nippon Electric Co High frequency heater
JPS58111295A (en) * 1981-12-25 1983-07-02 株式会社東芝 High frequency heater
EP2039328B1 (en) 2006-07-06 2014-03-05 Zuiko Corporation Wound-covering material
JP4939900B2 (en) * 2006-11-02 2012-05-30 白十字株式会社 Wound dressing
JP4939903B2 (en) * 2006-11-07 2012-05-30 白十字株式会社 Wound dressing
US10980088B2 (en) 2018-01-22 2021-04-13 Markov Llc Energy absorption monitoring for an intelligent electronic oven with energy steering
DE102018115827A1 (en) * 2018-06-29 2020-01-02 Gerlach Maschinenbau Gmbh Device for networking with controlled microwaves

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2499182A (en) * 1946-10-08 1950-02-28 Gen Electric Automatic maximizing control system
DE1221348B (en) * 1962-04-10 1966-07-21 Rohde & Schwarz Method and arrangement for independent coordination of electrical networks
US3757070A (en) * 1972-06-19 1973-09-04 Canadian Patents Dev Microwave heating apparatus with tuning means
GB1400895A (en) * 1973-06-27 1975-07-16 Canadian Patents Dev Microwave heating apparatus
US4035599A (en) * 1976-02-23 1977-07-12 Canadian Patents And Development Limited Control system for non-resonant microwave dryers
FR2358052A1 (en) * 1976-07-07 1978-02-03 Thomson Csf UHF oscillator load variation compensation - is applied to klystron powered furnaces and has piston controlled auxiliary cavity

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0088175A1 (en) * 1982-03-08 1983-09-14 Douglas Powell Mahan Tumble drying apparatus
US10603617B2 (en) 2015-10-30 2020-03-31 Fujitsu Limited Microwave irradiation apparatus and exhaust gas purification apparatus

Also Published As

Publication number Publication date
DE2825944B2 (en) 1980-08-14
CA1118845A (en) 1982-02-23
JPS6226158B2 (en) 1987-06-06
FR2434544B1 (en) 1984-02-10
SE7905219L (en) 1979-12-15
FR2434544A1 (en) 1980-03-21
JPS5533785A (en) 1980-03-10
DE2825944A1 (en) 1979-12-20
GB2023313B (en) 1983-01-19
SE438234B (en) 1985-04-01
DE2825944C3 (en) 1981-10-22

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Legal Events

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