WO2000048020A3 - Open circuit detector - Google Patents

Open circuit detector Download PDF

Info

Publication number
WO2000048020A3
WO2000048020A3 PCT/NO2000/000050 NO0000050W WO0048020A3 WO 2000048020 A3 WO2000048020 A3 WO 2000048020A3 NO 0000050 W NO0000050 W NO 0000050W WO 0048020 A3 WO0048020 A3 WO 0048020A3
Authority
WO
WIPO (PCT)
Prior art keywords
transformers
circuit
open circuit
signal source
detector
Prior art date
Application number
PCT/NO2000/000050
Other languages
French (fr)
Other versions
WO2000048020A2 (en
Inventor
Kjell Hatteland
Original Assignee
Geco As
Kjell Hatteland
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 Geco As, Kjell Hatteland filed Critical Geco As
Priority to CA002360956A priority Critical patent/CA2360956A1/en
Priority to AU27009/00A priority patent/AU2700900A/en
Priority to EP00905475A priority patent/EP1159626A2/en
Publication of WO2000048020A2 publication Critical patent/WO2000048020A2/en
Publication of WO2000048020A3 publication Critical patent/WO2000048020A3/en

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V1/00—Seismology; Seismic or acoustic prospecting or detecting
    • G01V1/16—Receiving elements for seismic signals; Arrangements or adaptations of receiving elements

Abstract

An open circuit detector for connecting devices in seismic data acquisition systems comprises two transformers (TM, TS), at least one signal source and at least one detection device. The detector is characterized in that the transformers' primary windings (W1M, W1S) are connected to the detection device(s) and the signal source to form a primary circuit for detection of impedance changes, especially those caused by an open circuit condition in the secondary circuit, and the transformers' secondary windings (W2M, W2S) are connected to the connecting device to form a secondary circuit or loop. A method for detection of an open circuit in a connecting device in seismic data acquisition systems by means of a detector comprising two transformers (TM, TS), at least one signal source and at least one detection device is characterized by connecting the transformers' primary windings to the detection device(s) and the test signal source to form a primary circuit, connecting the transformers' secondary windings to the connecting device to form a secondary circuit or loop, detecting impedance changes in the secondary circuit, and determining an open circuit condition based on said detected impedance changes.
PCT/NO2000/000050 1999-02-10 2000-02-09 Open circuit detector WO2000048020A2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CA002360956A CA2360956A1 (en) 1999-02-10 2000-02-09 Open circuit detector
AU27009/00A AU2700900A (en) 1999-02-10 2000-02-09 Open circuit detector
EP00905475A EP1159626A2 (en) 1999-02-10 2000-02-09 Open circuit detector

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NO990626A NO309695B1 (en) 1999-02-10 1999-02-10 Open circuit detector and method for detecting an open circuit in systems for collecting seismic data based on detection of impedance changes
NO19990626 1999-02-10

Publications (2)

Publication Number Publication Date
WO2000048020A2 WO2000048020A2 (en) 2000-08-17
WO2000048020A3 true WO2000048020A3 (en) 2000-12-28

Family

ID=19902942

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/NO2000/000050 WO2000048020A2 (en) 1999-02-10 2000-02-09 Open circuit detector

Country Status (5)

Country Link
EP (1) EP1159626A2 (en)
AU (1) AU2700900A (en)
CA (1) CA2360956A1 (en)
NO (1) NO309695B1 (en)
WO (1) WO2000048020A2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2910977B1 (en) * 2014-02-21 2020-08-05 Sercel Method for monitoring an electrical power supply line comprised in a seismic cable, corresponding system, computer program product and non-transitory computer-readable carrier medium

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3858169A (en) * 1973-03-26 1974-12-31 Gulf Research Development Co Geophone impulse tester
US4134099A (en) * 1977-04-15 1979-01-09 Texaco Inc. System for land seismic cable fault location
US4184143A (en) * 1978-06-01 1980-01-15 Texaco Inc. Seismic signal conductor testing system
US4276619A (en) * 1979-03-07 1981-06-30 Exxon Production Research Company Impedance and common mode rejection testing of a multi-channel seismic data gathering apparatus
US4298969A (en) * 1979-09-26 1981-11-03 Exxon Production Research Company Method and apparatus for testing the impedances of geophone channels
US4621226A (en) * 1984-05-23 1986-11-04 Weinschel Engineering Co., Inc. Apparatus and method for determining an input electrical characteristic of a device under test
US5303202A (en) * 1993-09-01 1994-04-12 Carroll Paul E Method for detecting breaks in geophone cables for seismic data acquisition system
EP0829731A2 (en) * 1996-09-17 1998-03-18 Lucent Technologies Inc. Ultra high reliability electrical contacts

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3858169A (en) * 1973-03-26 1974-12-31 Gulf Research Development Co Geophone impulse tester
US4134099A (en) * 1977-04-15 1979-01-09 Texaco Inc. System for land seismic cable fault location
US4184143A (en) * 1978-06-01 1980-01-15 Texaco Inc. Seismic signal conductor testing system
US4276619A (en) * 1979-03-07 1981-06-30 Exxon Production Research Company Impedance and common mode rejection testing of a multi-channel seismic data gathering apparatus
US4298969A (en) * 1979-09-26 1981-11-03 Exxon Production Research Company Method and apparatus for testing the impedances of geophone channels
US4621226A (en) * 1984-05-23 1986-11-04 Weinschel Engineering Co., Inc. Apparatus and method for determining an input electrical characteristic of a device under test
US5303202A (en) * 1993-09-01 1994-04-12 Carroll Paul E Method for detecting breaks in geophone cables for seismic data acquisition system
EP0829731A2 (en) * 1996-09-17 1998-03-18 Lucent Technologies Inc. Ultra high reliability electrical contacts

Also Published As

Publication number Publication date
NO309695B1 (en) 2001-03-12
NO990626L (en) 2000-08-11
CA2360956A1 (en) 2000-08-17
EP1159626A2 (en) 2001-12-05
NO990626D0 (en) 1999-02-10
AU2700900A (en) 2000-08-29
WO2000048020A2 (en) 2000-08-17

Similar Documents

Publication Publication Date Title
WO1998028898A3 (en) Method and apparatus for storing and retrieving performance data collected by a network interface unit
WO2001093748A3 (en) Relative nerve movement and status detection system and method
DK134090A (en) COOKING MODE DETECTOR
WO2001059685A3 (en) Method and apparatus for detecting doubled bills in a currency handling device
SE8703030L (en) METHOD FORMAL DETECTION METHOD AND PROCEDURE DEVICE DEVICE
SE9802719L (en) Methods and systems for determining the completeness of a received signal
EP0849586A3 (en) Detection of substances on surfaces and electrodes therefor
WO2003036819A3 (en) Detection and classification of signals utilizing known repeated training sequences
CA2042656A1 (en) Audio delay detector
CA2373688A1 (en) Measurement of magnetic fields
EP1115223A3 (en) Homo-code continuity proof testing device
EP1134589A3 (en) Method for detecting a faulty earth connection e.g. in a vehicle
AU2002214051A1 (en) System for testing an electric high frequency signal and level measuring device provided with said system
WO2003102610A3 (en) Method and device for detection in the frequency range, based on a time range measurement
CA2239664A1 (en) Tone location device for locating faults in a paired line
ATE51973T1 (en) SELF-TUNED LOW FREQUENCY PHASE-SHIFTING COIN VALUATION METHOD AND DEVICE.
CA2269129A1 (en) Method for testing the reliability of a testing apparatus, specially an empty bottle inspecting device
WO2000048020A3 (en) Open circuit detector
WO2002063766A3 (en) Method and apparatus for detecting valid signal information
NO930548L (en) PROCEDURE AND DEVICE FOR AA MONITORING THE CONDITIONS OF A RECEIVING ANTENNA
AU6446100A (en) Method for selecting modulation detector in receiver, and receiver
EP1126420A3 (en) Coin detection device
WO1995024059A3 (en) System for antenna supervising
DE29621439U1 (en) Data acquisition and card processing system
EP0807732A3 (en) Checking of identification signals

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A2

Designated state(s): AE AL AM AT AU AZ BA BB BG BR BY CA CH CN CR CU CZ DE DK DM EE ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX NO NZ PL PT RO RU SD SE SG SI SK SL TJ TM TR TT TZ UA UG US UZ VN YU ZA ZW

AL Designated countries for regional patents

Kind code of ref document: A2

Designated state(s): GH GM KE LS MW SD SL SZ TZ UG ZW AM AZ BY KG KZ MD RU TJ TM AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE BF BJ CF CG CI CM GA GN GW ML MR NE SN TD TG

121 Ep: the epo has been informed by wipo that ep was designated in this application
DFPE Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101)
AK Designated states

Kind code of ref document: A3

Designated state(s): AE AL AM AT AU AZ BA BB BG BR BY CA CH CN CR CU CZ DE DK DM EE ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX NO NZ PL PT RO RU SD SE SG SI SK SL TJ TM TR TT TZ UA UG US UZ VN YU ZA ZW

AL Designated countries for regional patents

Kind code of ref document: A3

Designated state(s): GH GM KE LS MW SD SL SZ TZ UG ZW AM AZ BY KG KZ MD RU TJ TM AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE BF BJ CF CG CI CM GA GN GW ML MR NE SN TD TG

WWE Wipo information: entry into national phase

Ref document number: 2000905475

Country of ref document: EP

ENP Entry into the national phase

Ref document number: 2360956

Country of ref document: CA

Ref country code: CA

Ref document number: 2360956

Kind code of ref document: A

Format of ref document f/p: F

WWE Wipo information: entry into national phase

Ref document number: 09890428

Country of ref document: US

WWP Wipo information: published in national office

Ref document number: 2000905475

Country of ref document: EP

REG Reference to national code

Ref country code: DE

Ref legal event code: 8642

WWW Wipo information: withdrawn in national office

Ref document number: 2000905475

Country of ref document: EP