FR2328202A1 - METHOD AND DEVICE FOR DETECTION OF PREMAGNETIZATION - Google Patents

METHOD AND DEVICE FOR DETECTION OF PREMAGNETIZATION

Info

Publication number
FR2328202A1
FR2328202A1 FR7630532A FR7630532A FR2328202A1 FR 2328202 A1 FR2328202 A1 FR 2328202A1 FR 7630532 A FR7630532 A FR 7630532A FR 7630532 A FR7630532 A FR 7630532A FR 2328202 A1 FR2328202 A1 FR 2328202A1
Authority
FR
France
Prior art keywords
change
detection
circuit
magnetic flux
time intervals
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
FR7630532A
Other languages
French (fr)
Other versions
FR2328202B1 (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.)
BBC Brown Boveri AG Switzerland
Original Assignee
BBC Brown Boveri AG Switzerland
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 BBC Brown Boveri AG Switzerland filed Critical BBC Brown Boveri AG Switzerland
Publication of FR2328202A1 publication Critical patent/FR2328202A1/en
Application granted granted Critical
Publication of FR2328202B1 publication Critical patent/FR2328202B1/fr
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R33/00—Arrangements or instruments for measuring magnetic variables
    • G01R33/02—Measuring direction or magnitude of magnetic fields or magnetic flux
    • G01R33/04—Measuring direction or magnitude of magnetic fields or magnetic flux using the flux-gate principle

Abstract

In this method, a cyclic change in magnetic flux is generated by means of correspondingly feeding a detection circuit (5) connected in series with the magnetic circuit. The time intervals of the current or voltage variation (Sa) with time of the detection circuit (5), generating this change in magnetic flux, are dependent on the magnetization to be detected in that the duty ratio of these time intervals is changed. This change is determined in a subsequent time interval detector (13), the output signal of which represents the desired detection signal (Sa'). The method exhibits high zero-point stability which respect to temperature-dependence, aging and dimensional tolerances of the magnetic circuit, and good detection sensitivity.
FR7630532A 1975-10-13 1976-10-11 METHOD AND DEVICE FOR DETECTION OF PREMAGNETIZATION Granted FR2328202A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1324675A CH609780A5 (en) 1975-10-13 1975-10-13 Method and device for detecting the magnetization of a magnetic circuit

Publications (2)

Publication Number Publication Date
FR2328202A1 true FR2328202A1 (en) 1977-05-13
FR2328202B1 FR2328202B1 (en) 1980-11-07

Family

ID=4390706

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7630532A Granted FR2328202A1 (en) 1975-10-13 1976-10-11 METHOD AND DEVICE FOR DETECTION OF PREMAGNETIZATION

Country Status (6)

Country Link
AT (1) ATA756576A (en)
CH (1) CH609780A5 (en)
DE (1) DE2550060C3 (en)
FR (1) FR2328202A1 (en)
NO (1) NO143116C (en)
SE (1) SE406512B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2949815A1 (en) * 1979-12-11 1981-06-19 Siemens AG, 1000 Berlin und 8000 München Magnetic field intensity measuring - using variation in saturation characteristics of iron core and induced pulse duration
DE3108906A1 (en) * 1981-03-09 1982-09-16 Siemens AG, 1000 Berlin und 8000 München "METHOD FOR MONITORING LADDER CURRENTS AND ARRANGEMENT FOR IMPLEMENTING THE METHOD"
ATE15553T1 (en) * 1981-05-26 1985-09-15 Siemens Ag METHOD AND ARRANGEMENT FOR DETERMINING A MAGNETIC FIELD.
DE3342573A1 (en) * 1983-11-25 1985-06-05 Teldix Gmbh, 6900 Heidelberg Method for determining a magnetic field

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3467864A (en) * 1965-09-28 1969-09-16 Susquehanna Corp Method and apparatus for measuring pulse magnitude and charge
US3605011A (en) * 1967-05-25 1971-09-14 Honeywell Inc Control apparatus
FR2148800A5 (en) * 1971-08-04 1973-03-23 Matra Engins
DE2333514A1 (en) * 1973-07-02 1975-01-23 Schernus Georg Peter Dipl Ing Triangular wave generator producing reference current - crystal controlled square wave generator followed by complementary emitter follower amplifier

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3467864A (en) * 1965-09-28 1969-09-16 Susquehanna Corp Method and apparatus for measuring pulse magnitude and charge
US3605011A (en) * 1967-05-25 1971-09-14 Honeywell Inc Control apparatus
FR2148800A5 (en) * 1971-08-04 1973-03-23 Matra Engins
DE2333514A1 (en) * 1973-07-02 1975-01-23 Schernus Georg Peter Dipl Ing Triangular wave generator producing reference current - crystal controlled square wave generator followed by complementary emitter follower amplifier

Also Published As

Publication number Publication date
CH609780A5 (en) 1979-03-15
SE7611227L (en) 1977-04-14
NO143116C (en) 1980-12-17
DE2550060C3 (en) 1978-11-09
ATA756576A (en) 1989-02-15
DE2550060A1 (en) 1977-04-14
SE406512B (en) 1979-02-12
FR2328202B1 (en) 1980-11-07
NO763436L (en) 1977-04-14
DE2550060B2 (en) 1978-03-02
NO143116B (en) 1980-09-08

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Legal Events

Date Code Title Description
ST Notification of lapse