DK40075A - Eddy current transducers - Google Patents

Eddy current transducers

Info

Publication number
DK40075A
DK40075A DK40075A DK40075A DK40075A DK 40075 A DK40075 A DK 40075A DK 40075 A DK40075 A DK 40075A DK 40075 A DK40075 A DK 40075A DK 40075 A DK40075 A DK 40075A
Authority
DK
Denmark
Prior art keywords
eddy current
current transducers
transducers
eddy
current
Prior art date
Application number
DK40075A
Other languages
Danish (da)
Inventor
J P Koch
Original Assignee
J P Koch
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 J P Koch filed Critical J P Koch
Priority to DK40075A priority Critical patent/DK40075A/en
Priority to DE19762604485 priority patent/DE2604485A1/en
Publication of DK40075A publication Critical patent/DK40075A/en

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P3/00—Measuring linear or angular speed; Measuring differences of linear or angular speeds
    • G01P3/42—Devices characterised by the use of electric or magnetic means
    • G01P3/44—Devices characterised by the use of electric or magnetic means for measuring angular speed
    • G01P3/48—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage
    • G01P3/481—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage of pulse signals
    • 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
    • G01V3/104—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 using several coupled or uncoupled coils
    • G01V3/105—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 using several coupled or uncoupled coils forming directly coupled primary and secondary coils or loops
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Remote Sensing (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Environmental & Geological Engineering (AREA)
  • Geology (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geophysics (AREA)
  • Transmission And Conversion Of Sensor Element Output (AREA)
DK40075A 1975-02-06 1975-02-06 Eddy current transducers DK40075A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DK40075A DK40075A (en) 1975-02-06 1975-02-06 Eddy current transducers
DE19762604485 DE2604485A1 (en) 1975-02-06 1976-02-05 Electric transducer to detect presence of a body - comprises two coupled coils and circuits tuned to the same frequency

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DK40075A DK40075A (en) 1975-02-06 1975-02-06 Eddy current transducers

Publications (1)

Publication Number Publication Date
DK40075A true DK40075A (en) 1976-08-07

Family

ID=8093102

Family Applications (1)

Application Number Title Priority Date Filing Date
DK40075A DK40075A (en) 1975-02-06 1975-02-06 Eddy current transducers

Country Status (2)

Country Link
DE (1) DE2604485A1 (en)
DK (1) DK40075A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0029682A1 (en) * 1979-11-21 1981-06-03 LUCAS INDUSTRIES public limited company Transducer
CH675039A5 (en) * 1987-12-01 1990-08-15 Peter Heimlicher
FR2980654B1 (en) * 2011-09-27 2019-08-02 Schneider Electric Industries Sas LC DETECTION OSCILLATOR FOR INDUCTIVE PROXIMITY DETECTOR ROBUST RADIATIVE ENVIRONMENTS

Also Published As

Publication number Publication date
DE2604485A1 (en) 1976-08-19

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