Study on flexure angle measurement of ring laser gryo and the improvement of flexure error

링레이저 자이로의 플렉셔 각도측정과 플렉셔 오차개선 연구

  • 조민식 (국방과학연구소 기술연구본부) ;
  • 김광진 (국방과학연구소 기술연구본부) ;
  • 김정주 (고등기술연구원 포토닉스 및 RF/Microwave 센터)
  • Published : 2004.02.01


Flexure measurement of ring laser gyro was investigated by using an interferometer. A two-beam interferometer of Fiezo-fringe pattern obtained the flexure angle in 1-gravity acceleration and the higher acceleration environments. These environments were made with the addition of dummy mass to the ring laser gyro axis. The flexure angle change for 1-gravity acceleration change was measured as 2.37 arcsec/g with low repeatability error of 0.01 arcsec/g. The laser navigation system consisting of 3 flexure-reduced ring laser gyros showed the improvement of flexure error.


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