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Laser Gyro

In 1960, the United States launched the world's first laser, and started the development of laser gyroscope. With the traditional gyro ratio, the 5mw laser pointer gyroscope has the advantages of large dynamic range, high precision, instantaneous start, excellent scale factor, strong environmental resistance, high reliability, long life, direct digital output and so on. It is the weapon, With rapid response capability, strengthen the ability to penetrate the key support technology. To carry out laser gyroscope and its application system research, the development of new weapons and equipment and the existing weapons and equipment quality improvement, enhance the combat effectiveness of the troops, its strategic significance is self-evident.

red laser pointer

Laser gyro manufacturing principle is quite simple, that is, the application of laser in the ring circuit is positive, anti-two light between the frequency difference to measure the angle. The key is the process. For example, the 10mw laser pointer gyro's cavity is a hard and brittle special material, in this hard and brittle material to try, light not too heavy. The team after thousands of experiments, only to explore and create a device suitable for drilling, the first in the country to break through the super fast brittle materials, precision machining technology.

Ultra-smooth optical surface processing, one of the key process. The initial grinding of the substrate, the naked eye looks smooth. But in the precision instruments, the surface is full of potholes. The traces of grinding, grinding the more smooth, the better the subsequent coating. Coating, to minimize the loss of light in the circuit, pay attention to uniformity of the coating to ensure that the film in a long time under the impact of high-energy electronic bombardment. The team in China took the lead in breaking the international advanced level of very low loss ion sputtering coating technology.

The key technology of the front end is solved, and the system integration and assembly of the 20mw laser pointer gyro is not easy. Laser gyro is a very precise optical device. When the system is integrated, the gyro light path adjustment, that is, tuning cavity, is the key. The tone is not correct, determines the final production of laser gyro performance is qualified, can become a boutique?. In the laser spot drift problems continue to capture, adjusting optical path changes after the team developed a cavity machine can be controlled accurately, taken from the chamber to manually adjust the key technology of cavity adjustment step, but also to fill the gaps without laser gyro cavity adjustment machine.

China has become the fourth country in the world to independently develop laser gyro, and the national defense science department has become China's first independent furniture intellectual property rights, and can fully closed-loop development, production of laser gyro units. The engineering application for the first time in the world to achieve a planar four frequency differential burning laser pointer gyro, the United States announced the overthrow of the early no conclusions; two frequency RLG has developed close to the highest level in the United States, the direct economic benefits brought by over hundreds of millions of dollars, the social benefit is incalculable; establish the three production line of laser gyro in China, the Chinese became the third country in the world to achieve mass production of laser gyro.

Hardware structure design to be compact, the algorithm should be optimal, to be able to carry out high-precision error compensation, so gyroscope and accelerometer partner, the overall role to the extreme. Compared with the conventional gyro inertial navigation system, this inertial navigation system not only improve the performance of several times, the volume is also greatly reduced. At present, the National Defense Science and Technology developed the inertial navigation system, two series, multi-type high power laser pointer gyro, has been fully applied to land, sea, air, days and other fields.

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