GB1440323A - Apparatus for compensation of a disturbing alternating magnetic field - Google Patents

Apparatus for compensation of a disturbing alternating magnetic field

Info

Publication number
GB1440323A
GB1440323A GB4245873A GB4245873A GB1440323A GB 1440323 A GB1440323 A GB 1440323A GB 4245873 A GB4245873 A GB 4245873A GB 4245873 A GB4245873 A GB 4245873A GB 1440323 A GB1440323 A GB 1440323A
Authority
GB
United Kingdom
Prior art keywords
coil
pick
disturbing
region
magnetic field
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
GB4245873A
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.)
Czech Academy of Sciences CAS
Original Assignee
Czech Academy of Sciences CAS
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 CS655772A external-priority patent/CS162005B1/cs
Priority claimed from CS379973A external-priority patent/CS162006B1/cs
Application filed by Czech Academy of Sciences CAS filed Critical Czech Academy of Sciences CAS
Publication of GB1440323A publication Critical patent/GB1440323A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J29/00—Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00
    • H01J29/003—Arrangements for eliminating unwanted electromagnetic effects, e.g. demagnetisation arrangements, shielding coils
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J37/00—Discharge tubes with provision for introducing objects or material to be exposed to the discharge, e.g. for the purpose of examination or processing thereof
    • H01J37/02—Details
    • H01J37/04—Arrangements of electrodes and associated parts for generating or controlling the discharge, e.g. electron-optical arrangement, ion-optical arrangement
    • H01J37/09—Diaphragms; Shields associated with electron or ion-optical arrangements; Compensation of disturbing fields
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2229/00—Details of cathode ray tubes or electron beam tubes
    • H01J2229/0007—Elimination of unwanted or stray electromagnetic effects
    • H01J2229/003—Preventing or cancelling fields entering the enclosure

Landscapes

  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
  • Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
  • Measuring Magnetic Variables (AREA)
GB4245873A 1972-09-27 1973-09-10 Apparatus for compensation of a disturbing alternating magnetic field Expired GB1440323A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CS655772A CS162005B1 (fr) 1972-09-27 1972-09-27
CS379973A CS162006B1 (fr) 1973-05-25 1973-05-25

Publications (1)

Publication Number Publication Date
GB1440323A true GB1440323A (en) 1976-06-23

Family

ID=25745887

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4245873A Expired GB1440323A (en) 1972-09-27 1973-09-10 Apparatus for compensation of a disturbing alternating magnetic field

Country Status (5)

Country Link
JP (1) JPS49124963A (fr)
DE (1) DE2345290A1 (fr)
FR (1) FR2200584A1 (fr)
GB (1) GB1440323A (fr)
NL (1) NL7312469A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2366005A (en) * 2000-03-10 2002-02-27 Onix Process Analysis Ltd Apparatus and method for controlling a magnet

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5215587A (en) * 1975-07-29 1977-02-05 Lion Corp Process for polymerizing liquid olefin polymers
DE2705515C2 (de) * 1977-02-10 1985-11-21 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Bildwiedergabegerät mit einer Bildröhre und einem Netztrafo
DE2809725C2 (de) * 1978-03-07 1986-11-06 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Bildwiedergabegerät
DE2936911A1 (de) * 1979-09-12 1981-04-02 Siemens AG, 1000 Berlin und 8000 München Verfahren und vorrichtung zur regelung eines magnetischen ablenksystems
JPS57197483A (en) * 1981-05-29 1982-12-03 Hitachi Ltd Noise erasing method for magnetic testing equipment
JPS62211839A (ja) * 1986-03-12 1987-09-17 Mitsubishi Electric Corp 不要輻射防止装置

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2366005A (en) * 2000-03-10 2002-02-27 Onix Process Analysis Ltd Apparatus and method for controlling a magnet
GB2366005B (en) * 2000-03-10 2004-02-18 Onix Process Analysis Ltd Apparatus and method for controlling a magnet

Also Published As

Publication number Publication date
FR2200584A1 (fr) 1974-04-19
NL7312469A (fr) 1974-03-29
JPS49124963A (fr) 1974-11-29
DE2345290A1 (de) 1974-03-28

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees