JPS4712892A - - Google Patents

Info

Publication number
JPS4712892A
JPS4712892A JP9980271A JP9980271A JPS4712892A JP S4712892 A JPS4712892 A JP S4712892A JP 9980271 A JP9980271 A JP 9980271A JP 9980271 A JP9980271 A JP 9980271A JP S4712892 A JPS4712892 A JP S4712892A
Authority
JP
Japan
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.)
Pending
Application number
JP9980271A
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
Publication of JPS4712892A publication Critical patent/JPS4712892A/ja
Pending 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
    • G01V3/02—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with propagation of electric current
    • G01V3/06—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with propagation of electric current using ac
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R27/00—Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
    • G01R27/02—Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant
    • G01R27/16—Measuring impedance of element or network through which a current is passing from another source, e.g. cable, power line
    • G01R27/18—Measuring resistance to earth, i.e. line to ground

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Geology (AREA)
  • Remote Sensing (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geophysics (AREA)
  • Measurement Of Resistance Or Impedance (AREA)
JP9980271A 1970-12-09 1971-12-10 Pending JPS4712892A (ja)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5855570 1970-12-09

Publications (1)

Publication Number Publication Date
JPS4712892A true JPS4712892A (ja) 1972-06-29

Family

ID=10481898

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9980271A Pending JPS4712892A (ja) 1970-12-09 1971-12-10

Country Status (3)

Country Link
US (1) US3808521A (ja)
JP (1) JPS4712892A (ja)
GB (1) GB1345712A (ja)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49127533U (ja) * 1973-03-09 1974-11-01
JPS50121541A (ja) * 1974-03-12 1975-09-23
JPS5349422U (ja) * 1976-09-30 1978-04-26
JPS6169671A (ja) * 1977-03-24 1986-04-10 イー・アイ・デユポン・デ・ニモアス・アンド・カンパニー 巻取装置のためのチヤツク
JPS638673U (ja) * 1986-07-03 1988-01-20

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DK12291D0 (da) * 1991-01-24 1991-01-24 Kurt I Soerensen Maaleudstyr til elektrisk profilering af et terraen
AT5503U1 (de) * 2001-03-08 2002-07-25 Lem Norma Gmbh Einrichtung zur unterstützung der messung des erdwiderstandes
AT501280B8 (de) * 2004-11-08 2007-02-15 Schirtec Trading Gmbh Kontinuierliches erdungskontrollsystem
US11286763B2 (en) * 2016-01-25 2022-03-29 Schlumberger Technology Corporation Drilling with information characterizing lateral heterogeneities based on deep directional resistivity measurements

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2803799A (en) * 1957-08-20 Voltage divider calibrating apparatus
US1897688A (en) * 1928-03-20 1933-02-14 Ambronn Richard Method of and apparatus for electric earth exploration
US2046436A (en) * 1935-06-12 1936-07-07 American Telephone & Telegraph Ground impedance measurement
US2481500A (en) * 1944-08-05 1949-09-13 W W Boes Company Electrical measuring instrument and circuits therefor
DE834120C (de) * 1950-05-25 1952-03-17 Dr Phil Nat Hans Schmidlin Bodenwiderstands-Messgeraet
US2802181A (en) * 1952-07-30 1957-08-06 Philco Corp Signal amplitude measuring system
US2874354A (en) * 1954-10-15 1959-02-17 Panellit Inc Calibrating circuit for current measuring systems
US2958823A (en) * 1956-03-13 1960-11-01 Marquardt Corp Voltage comparator
US2988690A (en) * 1956-08-17 1961-06-13 Newmont Mining Corp Method and apparatus for geophysical exploration
US3254297A (en) * 1960-10-25 1966-05-31 Anaconda Co Pulse transmission method and apparatus for geophysical prospecting utilizing means for generating unipolar pulses between groups of periodic pulses
US3562633A (en) * 1967-10-23 1971-02-09 William H Swain Co Transmitter and receiver electrode method and apparatus for sensing presence and proximity of underwater obstructions
US3525037A (en) * 1967-11-14 1970-08-18 Ampex Method and apparatus for measuring subsurface electrical impedance utilizing first and second successively transmitted signals at different frequencies

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49127533U (ja) * 1973-03-09 1974-11-01
JPS50121541A (ja) * 1974-03-12 1975-09-23
JPS5349422U (ja) * 1976-09-30 1978-04-26
JPS6169671A (ja) * 1977-03-24 1986-04-10 イー・アイ・デユポン・デ・ニモアス・アンド・カンパニー 巻取装置のためのチヤツク
JPS6396080U (ja) * 1977-03-24 1988-06-21
JPS638673U (ja) * 1986-07-03 1988-01-20

Also Published As

Publication number Publication date
GB1345712A (en) 1974-02-06
US3808521A (en) 1974-04-30

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