The gyro north seeker is a high-precision directional equipment based on inertial technology. It can be used in civilian fields such as tunnel engineering measurement and mine surveying. It can also be used in military fields such as geodesy, missile weapon system launch targeting, and "smart ocean" high-precision azimuth reference establishment. , has broad market application prospects.

In a north seeker, a gyroscope is a measuring element used to measure the earth's rotation speed. Since the earth's rotation angular speed is the only source of information for orientation identification, the value is very small. This requires the fiber optic gyroscope to have high sensitivity and small angular velocity random walk, and the accuracy of the north seeker basically depends on the gyro accuracy. High-mobility mobile electronic equipment systems need to seek north quickly. In order to shorten the erection time of mobile electronic equipment, it is required The fiber optic gyroscope has the characteristics of fast start-up time, small constant drift and angular velocity random walk, and small nonlinearity of the scale factor.

Ericco is launching a product, Low Cost 3 Axis FOG North Seeker. The start-up time of this product is 5 minutes, and the north-seeking accuracy is between 0.25-1°. It also uses a closed-loop fiber optic gyroscope as the core component to reduce measurement errors and ensure measurement accuracy.

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