DEVICE FOR ADJUSTING THE PERIMETER OF A FOUR-FREQUENCY ZEEMAN LASER GYROSCOPE Russian patent published in 2023 - IPC G01C19/66 

FIELD: gyroscopes; measuring equipment.

SUBSTANCE: invention can be used to adjust the perimeter of a four-frequency Zeeman laser gyroscope. The device for adjusting the perimeter of a four-frequency Zeeman laser gyroscope includes photodetectors of the output radiation of a ring laser, which is equipped with four mirrors, the first and second of which are made with a piezo drive, the third and fourth mirrors are partially transparent. An optical mixer is installed on the fourth mirror, which forms the output radiation of the ring laser, which is equipped with a frequency shifter unit, the coils of which are included in the arms of the ring laser, and a synchronizing pulse generator, the output of which is connected to the input of the frequency shifter unit. At the same time, a photodetector of the adjustment signal is installed at the output of the third mirror of the ring laser, as well as serially connected bandpass amplifier, the input of which is connected to the output of the photodetector of the adjustment signal, detector, ADC, digital unit for generating an adjustment signal, DAC and amplifier, the output of which is connected to the control inputs the first and second mirrors made with a piezo drive.

EFFECT: increase in the accuracy of adjusting the perimeter of a four-frequency Zeeman laser gyroscope.

1 cl, 1 dwg