FR576862A - Device for indicating the presence of conductive bodies - Google Patents

Device for indicating the presence of conductive bodies

Info

Publication number
FR576862A
FR576862A FR576862DA FR576862A FR 576862 A FR576862 A FR 576862A FR 576862D A FR576862D A FR 576862DA FR 576862 A FR576862 A FR 576862A
Authority
FR
France
Prior art keywords
indicating
conductive bodies
bodies
conductive
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
Other languages
French (fr)
Inventor
Rudolf Hans Richter
Max Hugo Wetzel
Max Kurt Wetzel
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 filed Critical
Application granted granted Critical
Publication of FR576862A publication Critical patent/FR576862A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • 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
FR576862D 1923-04-28 1924-02-07 Device for indicating the presence of conductive bodies Expired FR576862A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DER58372D DE398267C (en) 1923-04-28 1923-04-28 Facility for the verification of leading bodies

Publications (1)

Publication Number Publication Date
FR576862A true FR576862A (en) 1924-08-27

Family

ID=7410783

Family Applications (1)

Application Number Title Priority Date Filing Date
FR576862D Expired FR576862A (en) 1923-04-28 1924-02-07 Device for indicating the presence of conductive bodies

Country Status (3)

Country Link
DE (1) DE398267C (en)
FR (1) FR576862A (en)
GB (1) GB222369A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996007090A1 (en) * 1994-08-31 1996-03-07 University Of Edinburgh Debris monitoring

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3012189A (en) * 1945-06-05 1961-12-05 Electro Mechanical Res Inc Capacitive detector
US3199096A (en) * 1960-09-14 1965-08-03 Specialties Dev Corp Capacity alarm system
US3205352A (en) * 1961-08-04 1965-09-07 Gen Precision Inc Presence detector
DE102011017761A1 (en) * 2011-04-29 2012-10-31 Robert Bosch Gmbh Method and device for line detection

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996007090A1 (en) * 1994-08-31 1996-03-07 University Of Edinburgh Debris monitoring
US5811664A (en) * 1994-08-31 1998-09-22 University Of Edinburgh Debris monitoring
AU696968B2 (en) * 1994-08-31 1998-09-24 University Of Edinburgh, The Debris monitoring

Also Published As

Publication number Publication date
GB222369A (en) 1924-10-02
DE398267C (en) 1924-07-05

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