Ring laser gyroscope

About: Ring laser gyroscope is a research topic. Over the lifetime, 2070 publications have been published within this topic receiving 18609 citations. The topic is also known as: Sagnac interferometer.

Mechanical-shaking laser gyroscope light integrating mechanism

Abstract: The invention relates to a mechanical-shaking laser gyroscope light integrating mechanism. The light integrating mechanism mainly consists of a light integrating prism adjusting device, a photoelectric tube adjusting device and a gyroscope shaking device, wherein the light integrating prism adjusting device mainly consists of three one-dimensional manual workbenches, an electric rotary workbench and a light integrating prism holder which are connected in series, and the light integrating prism adjusting device is used for realizing operations of holding, positioning and position and angle adjusting of the light integrating prism; the photoelectric tube adjusting device mainly consists of a three-dimensional precise electric workbench, a photoelectric tube holder and an incline support which are connected in series, and the photoelectric tube adjusting device is used for operation for holding, positioning and position adjusting of the photoelectric tube; the gyroscope shaking device mainly consists of a support, a shaking wheel, an installation rack, a cavity body installing mechanism, positioning blocks and the like, and the gyroscope shaking device is used for realizing positioning and shaking of the gyroscope. The mechanical-shaking laser gyroscope light integrating mechanism established by the invention by adopting a combined manual and electric method is good in operability, high in positioning accuracy, and conducive to improvements of the quality and efficiency of a laser gyroscope light integrating technology.

An argon ion ring laser as a gyroscope

Abstract: As a prototype gyroscope for a precision measurement of the Earth's rotation ΩE, we set up an argon ion ring laser with an area of 1.4 m2. Different cavity geometries were tested in order to achieve a cancellation of the effect of the plasma flow. In a set-up with two laser tubes of the same type facing towards opposite directions, a stability of the beat frequency of 2–3 ΩE was measured. In a configuration with a double transition of the laser beam through the tube, the lock-in threshold was too high for the Earth's rotation to be measured, however, no effect of the plasma flow was observed.

Micro-Optical Gyroscope Using a PANDA Ring Resonator

Abstract: We propose a new system of a micro-optical gyroscope (MOG) using a micro-embedded system. This system is comprised of a modified add/drop filter known as a PANDA ring resonator, which can be applied to navigate the direction with 3-D axes. The optical total path length of a MOG has been expanded by mean of an enhanced ring or PANDA ears. Simulation results obtained have shown that the precision signal at the phase difference of rotation orbit (straight line, ellipse, circle, etc.,) as a function of the inertial rotation rate Ω based on the Sagnac effect is achieved. The dependence of the transmission characteristics of the PANDA ring on the coupling coefficients of directional couplers is studied. The mathematical model of the system is analyzed and simulated.

Vehicle navigation gyroscope correction - is made when vehicle is at rest using north-seeking gyroscope and frame relative angle nulling

Abstract: A gyroscope unit for a vehicle has a vertically supported navigation gyroscope with a north-seeking gyroscope enabling correction of the navigation gyroscope indication when the vehicle is at rest. The navigation gyroscope is rotated about its vertical axis (7) by resetting devices engaging the horizontally mounted frame. The north reference is transferred to the navigation gyroscope without gimbal errors even when the vehicle has an inclined attitude. This is achieved economically and without addition time. Measurement instruments (10) determine the deviation from 90 degrees of the angle between the planes of both gyroscope frames (2,4). The reset devices are controlled to correct the navigation gyroscope indication using the north-seeking gyroscope and according to the measured angular deviation. The deviation is nulled and the new navigation gyroscope direction determined by the north-seeking gyroscope.

Laser gyroscope with fast starting

Abstract: The utility model belongs to a gyroscope, and particularly relates to a laser gyroscope with fast starting, aiming at providing a laser gyroscope with fast starting. The laser gyroscope with fast starting comprises a high-voltage power supply, a pre-amplifying circuit, a current-stabilizing current, a laser gyro and a control circuit, wherein the laser gyro is used for moving angle rate of a sensitive carrier relative to inertial space; the high-voltage power supply is used for providing a secondary power supply needed by starting, frequency stabilizing and mechanical jittering of the laser gyro; the pre-amplifying circuit is used for pre-amplifying a photoelectric signal output by the gyro; the current-stabilizing circuit is used for controlling the size of the discharging current of two anodes; and the control circuit is mainly used for realizing the starting control, frequency stabilizing control and mechanical jittering of the gyro, wherein in an optical block body, the position capable of illuminating to the cathode is provided with a near ultraviolet light-emitting lamp. The laser gyroscope has the advantages that a light-emitting optical source of the near ultraviolet wave band carries out illumination to the cathode of the laser gyro, greatly increases the initial current carrier density of a gyro discharging cavity in short time, and shortens the starting time of the gyroscope.