Global patent index - EP 0981769 A1

EP 0981769 A1 2000-03-01 - SEISMIC PROBE COMPRISING A SEISMIC SENSOR AND EARTH MAGNETIC FIELD SENSOR

Title (en)

SEISMIC PROBE COMPRISING A SEISMIC SENSOR AND EARTH MAGNETIC FIELD SENSOR

Title (de)

SEISMISCHES SONDE MIT EINEM SEISMISCHEN DETEKTOR UND EINEM ERDMAGNETFELD-DETEKTOR

Title (fr)

SONDE DE TYPE SISMIQUE COMPORTANT UN DETECTEUR SISMIQUE ET UN DETECTEUR DU CHAMP MAGNETIQUE TERRESTRE

Publication

EP 0981769 A1 (FR)

Application

EP 98925748 A

Priority

  • FR 9801001 W
  • FR 9706426 A

Abstract (en)

[origin: FR2763701A1] The invention concerns a seismic probe (70) comprising, integral with its body (71) or mounted detachable thereon, a device sensing (86) the direction and intensity of the earth's magnetic field, for determining the spatial orientation of its seismic cell (81) connected through a two-path amplifying chain to a surface computer unit by a double transmission system with analog channel and frequency modulation channel particular to each path. This invention is useful for manufacturers of seismic probes, users concerned with seismic risks or local fractures and movements above the ground or underground.

IPC 1-7 (main, further and additional classification)

G01V 1/52

IPC 8 full level (invention and additional information)

G01V 1/52 (2006.01)

CPC (invention and additional information)

G01V 1/52 (2013.01)

Citation (search report)

See references of WO 9853345A1

Designated contracting state (EPC)

DE ES GB IT

EPO simple patent family

FR 2763701 A1 19981127; FR 2763701 B1 19990827; CA 2288959 A1 19981126; EP 0981769 A1 20000301; WO 9853345 A1 19981126

INPADOC legal status

2003-06-11 [18D] DEEMED TO BE WITHDRAWN

- Ref Legal Event Code: 18D

- Effective date: 20021203

2003-05-14 [17Q] FIRST EXAMINATION REPORT

- Ref Legal Event Code: 17Q

- Effective date: 20030328

2000-03-01 [17P] REQUEST FOR EXAMINATION FILED

- Ref Legal Event Code: 17P

- Effective date: 19991215

2000-03-01 [AK] DESIGNATED CONTRACTING STATES:

- Ref Legal Event Code: AK

- Designated State(s): DE ES GB IT