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Zeeman laser gyro in quasifourmode regime
Laser gyros with magnetooptical biasing combines the inherent laser gyro accuracy potential and extremely high exploitation characteristics being unachievable for other types of gyros such as mechanical, fiber and hemispheric resonant gyros, etc. (ready time 1-3 s, shocks 150 g, vibration 35 g in the range of 20 Hz – 2 kHz, temperature range –55…+70 оС). In Russia the magnetooptical laser gyros with original design covered by patents (first patent was taken in 1964) are being produced by JSC “RDI “Polyus” named by M.F. Stelmakh”. This laser gyro has biasing on Zeeman effect. Nondithered laser gyros with magnetooptical biasing are named “laser gyros of the second generation”. Experimental results proved that developed Zeeman laser gyro optimized mathematical and software provision permitted to increase the devices accuracy by 10 times without limitation of dynamic characteristics.
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