GB929000A - Improvements in or relating to variable electrical inductor devices - Google Patents

Improvements in or relating to variable electrical inductor devices

Info

Publication number
GB929000A
GB929000A GB454860A GB454860A GB929000A GB 929000 A GB929000 A GB 929000A GB 454860 A GB454860 A GB 454860A GB 454860 A GB454860 A GB 454860A GB 929000 A GB929000 A GB 929000A
Authority
GB
United Kingdom
Prior art keywords
pulses
core
inductance
magnetisation
winding
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
GB454860A
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.)
Philips Electrical Industries Ltd
Original Assignee
Philips Electrical Industries 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
Application filed by Philips Electrical Industries Ltd filed Critical Philips Electrical Industries Ltd
Publication of GB929000A publication Critical patent/GB929000A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B1/00—Comparing elements, i.e. elements for effecting comparison directly or indirectly between a desired value and existing or anticipated values
    • G05B1/01—Comparing elements, i.e. elements for effecting comparison directly or indirectly between a desired value and existing or anticipated values electric
    • G05B1/02—Comparing elements, i.e. elements for effecting comparison directly or indirectly between a desired value and existing or anticipated values electric for comparing analogue signals
    • G05B1/025—Comparing elements, i.e. elements for effecting comparison directly or indirectly between a desired value and existing or anticipated values electric for comparing analogue signals using inductance means
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B11/00—Automatic controllers
    • G05B11/01—Automatic controllers electric
    • G05B11/012—Automatic controllers electric details of the transmission means
    • G05B11/016—Automatic controllers electric details of the transmission means using inductance means
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J1/00—Details of adjusting, driving, indicating, or mechanical control arrangements for resonant circuits in general
    • H03J1/18—Control by auxiliary power
    • H03J1/22—Control by auxiliary power with stepping arrangements actuated by control pulses
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K25/00—Pulse counters with step-by-step integration and static storage; Analogous frequency dividers
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K3/00—Circuits for generating electric pulses; Monostable, bistable or multistable circuits
    • H03K3/02—Generators characterised by the type of circuit or by the means used for producing pulses
    • H03K3/45—Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of non-linear magnetic or dielectric devices

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Nonlinear Science (AREA)
  • Selective Calling Equipment (AREA)
  • Relay Circuits (AREA)

Abstract

929,000. Inductors; automatic control. PHILIPS ELECTRICAL INDUSTRIES Ltd. Feb. 9, 1960 [Feb. 12, 1959], No. 4548/60. Classes 38 (2) and 38 (4). [Also in Groups XIX, XXXVIII, XXXIX and XL (c)] An inductance device variable by remote control comprises a core 1 of soft magnetic material carrying one or more coils 2 and a linked core member 3 of highly retentive magnetic material carrying a winding 4, pulses supplied to winding 4 affecting the magnetisation of core member 3 according to their number, amplitude and duration and so causing variation of the inductance of coil 2 or of the coupling between two coils on core 1. There may be an automatically operating device arranged to cut off the supply of pulses when the inductance of coil 2 reaches a maximum and so prevent reversal of the direction of magnetisation in core 3. Alternatively pulses may be applied to a winding arranged to produce transverse magnetisation in core 3. For remote control of a radio or t.v. receiver the pulse generator 13 (Fig. 3) produces positive and negative pulses according to which of photo-electric cells 14 or 15 is illuminated. Supply of pulses is stopped by feedback through conductor 22 when a given value of inductance of 17 is achieved. The apparatus may be used for counting pulses or for automatic control of the state of a device 20 (Fig. 4) recorded by a measuring instrument 21 which, on a given deviation, sends a control signal to pulse generator 19 inducing it to emit positive or negative pulses as appropriate. Instead of using positive and negative pulses the pulse supply may be switched to the appropriate one of two oppositely coiled windings on the core 3.
GB454860A 1959-02-12 1960-02-09 Improvements in or relating to variable electrical inductor devices Expired GB929000A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL236070 1959-02-12

Publications (1)

Publication Number Publication Date
GB929000A true GB929000A (en) 1963-06-19

Family

ID=19751572

Family Applications (1)

Application Number Title Priority Date Filing Date
GB454860A Expired GB929000A (en) 1959-02-12 1960-02-09 Improvements in or relating to variable electrical inductor devices

Country Status (2)

Country Link
CH (1) CH387798A (en)
GB (1) GB929000A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117706438A (en) * 2023-08-01 2024-03-15 珅斯电子(上海)有限公司 Variable magnetic sensor, magnetic field intensity measuring method and current detecting method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117706438A (en) * 2023-08-01 2024-03-15 珅斯电子(上海)有限公司 Variable magnetic sensor, magnetic field intensity measuring method and current detecting method

Also Published As

Publication number Publication date
CH387798A (en) 1965-02-15

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