Global Patent Index - EP 1080341 A1

EP 1080341 A1 2001-03-07 - METHOD FOR GENERATING A TEMPERATURE-DEPENDENT SIGNAL IN A FIBRE-OPTIC GYROSCOPE

Title (en)

METHOD FOR GENERATING A TEMPERATURE-DEPENDENT SIGNAL IN A FIBRE-OPTIC GYROSCOPE

Title (de)

VERFAHREN ZUR ERZEUGUNG EINES TEMPERATURABHÄNGIGEN SIGNALS IN EINEM FASERKREISEL

Title (fr)

PROCEDE DE PRODUCTION D'UN SIGNAL DEPENDANT DE LA TEMPERATURE DANS UN GYROSCOPE A FIBRE OPTIQUE

Publication

EP 1080341 A1 (DE)

Application

EP 99926321 A

Priority

  • DE 19822581 A
  • EP 9903409 W

Abstract (en)

[origin: DE19822581A1] The invention relates to a method for generating a temperature-dependent signal for correcting temperature influences on a fibre-optic gyroscope, comprising at least one 3x3 coupler, a semiconductor light source and a monitor diode for detecting the radiation output of the semiconductor light source. The output signal of the monitor diode (D3, D4) is transmitted to a control unit (R) and the control unit (R) controls the injection current of the semiconductor light source (L) such that the output signal of the monitor diode (D3, D4) is constant and that a signal [I(T)] proportional to the injection current is created so as to correct temperature influences.

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

G01C 19/72

IPC 8 full level (invention and additional information)

G01C 19/72 (2006.01)

CPC (invention and additional information)

G01C 19/725 (2013.01); G01C 19/721 (2013.01)

Citation (search report)

See references of WO 9960336A1

Designated contracting state (EPC)

DE FR GB IT

EPO simple patent family

DE 19822581 A1 19991209; DE 19822581 C2 20000330; AU 4362599 A 19991206; CA 2332884 A1 19991125; EP 1080341 A1 20010307; WO 9960336 A1 19991125

INPADOC legal status


2004-12-22 [18D] DEEMED TO BE WITHDRAWN

- Effective date: 20040617

2004-03-24 [17Q] FIRST EXAMINATION REPORT

- Effective date: 20040206

2001-03-07 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20000916

2001-03-07 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): DE FR GB IT