FR2320662B3 - - Google Patents

Info

Publication number
FR2320662B3
FR2320662B3 FR7524505A FR7524505A FR2320662B3 FR 2320662 B3 FR2320662 B3 FR 2320662B3 FR 7524505 A FR7524505 A FR 7524505A FR 7524505 A FR7524505 A FR 7524505A FR 2320662 B3 FR2320662 B3 FR 2320662B3
Authority
FR
France
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
FR7524505A
Other languages
French (fr)
Other versions
FR2320662A1 (fr
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.)
Societe des Produits Industriels ITT SA
Original Assignee
Societe des Produits Industriels ITT SA
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 Societe des Produits Industriels ITT SA filed Critical Societe des Produits Industriels ITT SA
Priority to FR7524505A priority Critical patent/FR2320662A1/fr
Publication of FR2320662A1 publication Critical patent/FR2320662A1/fr
Application granted granted Critical
Publication of FR2320662B3 publication Critical patent/FR2320662B3/fr
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/94—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the way in which the control signals are generated
    • H03K17/945—Proximity switches
    • H03K17/95—Proximity switches using a magnetic detector
    • H03K17/952—Proximity switches using a magnetic detector using inductive coils
    • H03K17/9537—Proximity switches using a magnetic detector using inductive coils in a resonant circuit
    • H03K17/9542—Proximity switches using a magnetic detector using inductive coils in a resonant circuit forming part of an oscillator
    • H03K17/9547—Proximity switches using a magnetic detector using inductive coils in a resonant circuit forming part of an oscillator with variable amplitude
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V3/00—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation
    • G01V3/08—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with magnetic or electric fields produced or modified by objects or geological structures or by detecting devices
    • G01V3/10—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with magnetic or electric fields produced or modified by objects or geological structures or by detecting devices using induction coils
    • G01V3/101—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with magnetic or electric fields produced or modified by objects or geological structures or by detecting devices using induction coils by measuring the impedance of the search coil; by measuring features of a resonant circuit comprising the search coil
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
    • H03B5/00—Generation of oscillations using amplifier with regenerative feedback from output to input
    • H03B5/08—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance
    • H03B5/12—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being semiconductor device
    • H03B5/1203—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being semiconductor device the amplifier being a single transistor
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
    • H03B5/00—Generation of oscillations using amplifier with regenerative feedback from output to input
    • H03B5/08—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance
    • H03B5/12—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being semiconductor device
    • H03B5/1231—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being semiconductor device the amplifier comprising one or more bipolar transistors

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Remote Sensing (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Electromagnetism (AREA)
  • Environmental & Geological Engineering (AREA)
  • Geology (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Geophysics (AREA)
  • Electronic Switches (AREA)
FR7524505A 1975-08-06 1975-08-06 Oscillateur pour detecteur de proximite et detecteur de proximite en faisant usage Granted FR2320662A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7524505A FR2320662A1 (fr) 1975-08-06 1975-08-06 Oscillateur pour detecteur de proximite et detecteur de proximite en faisant usage

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7524505A FR2320662A1 (fr) 1975-08-06 1975-08-06 Oscillateur pour detecteur de proximite et detecteur de proximite en faisant usage

Publications (2)

Publication Number Publication Date
FR2320662A1 FR2320662A1 (fr) 1977-03-04
FR2320662B3 true FR2320662B3 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1978-03-24

Family

ID=9158821

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7524505A Granted FR2320662A1 (fr) 1975-08-06 1975-08-06 Oscillateur pour detecteur de proximite et detecteur de proximite en faisant usage

Country Status (1)

Country Link
FR (1) FR2320662A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4337536A1 (de) * 1993-10-28 1995-05-04 Koepenick Funkwerk Gmbh Schaltungsanordnung für eine Anschwinghilfe eines Transistor-Oszillators
US9201156B2 (en) 2012-03-29 2015-12-01 Chevron U.S.A. Inc. System and method for measurement incorporating a crystal resonator

Also Published As

Publication number Publication date
FR2320662A1 (fr) 1977-03-04

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